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Chemical composition of Xylopia nitida: Diterpenes and alkaloids Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-22 Mariano G.S. Vieira; Nilce V. Gramosa; Edilberto R. Silveira
From the roots of Xylopia nitida, were obtained a new natural diterpene, the ent-kaur-16-en-18,19-diol and a new aporphine alkaloid, the 5,6,6a,7-tetrahydro-1-methoxy-(6aS)-4H-benzo[de][1,3]benzodioxolo [5,6-g]quinoline. Some known compounds were also isolated, ent-trachylobane, ent-trachyloban-18,19-diol, ent-trachyloban-18-oic acid, ent-trachyloban-19-oic acid, (−)-xylopine, 1-O-ethyl-β-D-glucopyranose
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Chemical constituents from Ficus natalensis hochst (Moraceae) and their chemophenetic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-20 Judith F.T. Mbougnia; Gervais M. Happi; Gabin T.M. Bitchagno; Maurice D. Awouafack; Bruno N. Lenta; Simeon F. Kouam; Pierre Tane; Norbert Sewald; Mathieu Tene
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Phenolic compounds and triterpenes from the roots of Vaccinium dunalianum Wight and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-18 Bo-Xiao Wu; Xia Zhang; Guo-Lei Zhu; Xiao-Qin Yang; Yun Liu; Ying-Jun Zhang; Ping Zhao
Eight phenolic compounds, including two catechins (1 and 2), two proanthocyanidins (3 and 4), three lignans (5–7), and one phenol (8), were isolated from roots of Vaccinium dunalianum Wight (Ericaceae), together with two triterpenes (9 and 10). All of them were isolated from the title plant for the first time. Their chemical structures were established based on the extensive MS and NMR spectroscopic
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Pterosin derivatives from Pteris morii Masamune Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-18 Yun Chen; Fang-Xia Lin; Jing-Yu Yang; Xue-Ming Zhou; Ji-Ling Yi
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Effects of light intensity on the anatomical structure, secretory structures, histochemistry and essential oil composition of Aeollanthus suaveolens Mart. ex Spreng. (Lamiaceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-15 Suzana Marques Barbosa; Natalia do Couto Abreu; Mozaniel Santana de Oliveira; Jorddy Nevez Cruz; Eloisa Helena de Aguiar Andrade; Marco Antônio Menezes Neto; Ely Simone Cajueiro Gurgel
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Chemical constituents of Chimaphila japonica Miq Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-11 Yue Yu; Alaa Elshafei; Xuedan Zheng; Shengyu Cheng; Yixuan Wang; Menghua Piao; Yiming Wang; Mei Jin; Gao Li; Mingshan Zheng
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NMR-based metabolomic analysis of the seasonal and regional variability of phytochemical compounds in Curtisia dentata stem bark Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-09 A.S. van Wyk; G. Prinsloo
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Chemical constituents from the roots of Asarum sieboldii Miq. var. Seoulense Nakai Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-09 Jun-Hui Li; En-Ji Cui; Chang-Ji Zheng
Fourteen compounds were isolated from the 95% ethanol reflux extract of Asarum sieboldii Miq. var. Seoulense Nakai, including five phenanthrene derivatives (1–5), three isobutyl amides (6–8), three phenylpropanoids (9–11) and three lignins (12–14). The structures of these compounds were identified by spectroscopic methods and by comparison with the reported spectroscopic data. Among them, compounds
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Constituents from the pseudofruits of Hovenia dulcis and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-07 Quynh-Mai Thi Ngo; Manh Tuan Ha; Ngoc Khanh Vu; Jeong Ah Kim; Mi Hee Woo; Byung Sun Min
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Chemical constituents from Laggera pterodonta Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2021-01-05 Yan-Qing Xie; Wei-Tong Fan; Xuan-Qin Chen; Rong-Tao Li; Zhi-Jun Zhang
A phytochemical investigation on the aerial parts of Laggera pterodonta resulted in the isolation and identification of fourteen compounds, including six sesquiterpenoids (1–6), five flavonoids (7–11), one lignan (12), and two pyrrole alkaloids (13, 14). Among them, compounds 1–3, 7–9, and 11 are the characteristic class of secondary metabolites of L. pterodonta. Compounds 4 and 5 were firstly isolated
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Leaf flavonoids from Croton urucurana and C. floribundus (Euphorbiaceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-31 Jocimar Oliani; Marcelo J. Pena Ferreira; Antonio Salatino; Maria Luiza F. Salatino
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Polyprenylated benzophenone derivatives from Clusia burle-marxii and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-31 Caline G. Ferraz; Maria do C.C. Silva; David A.S.G. Pereira; Brenno V.V. Caldas; Rafael Mattos; Vivian V.G. Oliveira; Eberson M.J. Andrade; Ana C.F. Soares; Franceli da Silva; Frederico G. Cruz; Paulo R. Ribeiro
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Chemical constituents from Hovenia dulcis Thunb. And their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-29 Mei-Chen Li; Chao-Jie Xie; Cai-Wen Meng; Yun-Qiang Zhang; Jin-Gou Gao; Wei-Hua Wang; Jian Yu Liu; Yong Nan Xu
Phytochemical investigations on the fruit stalks and seeds of the plant Hovenia dulcis Thunb. led to the isolation of twenty-one compounds, including three triterpenes (1–3), two sterols (4–5), five flavonoids (6–10), two sesquiterpenes (11–12), one lignan (13), two phenylpropanoids (14–15), four benzoic acid derivatives (16–19), one acid amide (20) and one cerebroside (21). The structures of these
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A MALDI-TOF mass spectrometry-based approach for molecular profiling of leaves from pasture and feed forages species Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-26 Cínthia C. Bonatto; Luciano P. Silva
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Resource conservation strategy helps explain patterns of biological invasion in a low-N environment Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-22 Guangqian Ren; Furong He; Jianfan Sun; Wenjie Hu; Ahmad Azeem; Shanshan Qi; Bin Yang; Miaomiao Cui; Kun Jiang; Daolin Du
Several studies have been conducted on the distribution of carbon (C) and nitrogen (N) in plant, however, there has been rare data linking Ecological Stoichiometry to plant invasion success, especially in a low-N environment. Accordingly, an experiment in this study was performed to explore the nutrition distribution and stoichiometry among various organs in plant, contributing to plant invasion. According
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Chemical constituents from the roots of Solanum asterophorum Mart. and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-22 Celso Amorim Camara; Maria de Fátima Agra; Tania Maria Sarmento Silva
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Chemical constituents from Psychotria arborea Hiern (Rubiaceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-22 Judith Caroline Ngo Nyobe; Willifred Dongmo Tekapi Tsopgni; Jean Pierre Longue Ekon; Ali Ben Saida; Annie Guilaine Djuidje; Anicet Biwole Bengondo; Gisele Etame Loe; Guillaume Berionni; Desire Bikele Mama; Jean Claude Ndom; Emmanuel Mpondo Mpondo
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Cleistanthane diterpenoids from the resin of Vellozia pyrantha A.A.Conc and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-23 Iago B.F. dos Santos; Luiz A.F. Ribeiro; Floricea M. Araújo; Paulo R. Ribeiro
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Phytochemical study of Stachys candida Bory & Chaubard (Lamiaceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-17 Aikaterini-Maria Michailidou; Ekaterina-Michaela Tomou; Helen Skaltsa
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Chemometric analysis applied to a chemophenetics approach in Simaroubaceae family: The relevance of alkaloids and quassinoids Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-17 Paula Mendonça Leite; Rachel Oliveira Castilho
Simaroubaceae family belongs to the order Sapindales, which in turn is part of Eurosides II (APG IV). It consists of 23 genera: Ailanthus; Amaroria; Brucea; Castela; Eurycoma; Gymnostemon; Hannoa; Holacantha; Homalolepsis; Iridosma; Laumoniera; Leitneria; Nothospondias; Odyendeya; Perriera; Picrasma; Picrolemma; Pierreodendron; Quassia; Samadera; Simaba; Simarouba; Soulamea. Over the years, the classification
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α-pyrone derivatives from endophytic fungus Diaporthe sp. RJ-41 Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-16 Qiong Zhang; Wei-guang Ma; Qing Zhao; Yu-ying Zhao; Zhi-pu Huang; Yu-xiao Xu; De-fen Zhu; Jin-cun Li; Xiao-mei Zhang
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Phenolic compounds and ecdysteroids of Diplazium esculentum (Retz.) Sw. (Athyriaceae) from Japan and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-13 Masato Watanabe; Tomoka Miyashita; Hari Prasad Devkota
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Phytochemical and network-based chemotaxonomic study of Lonicera japonica Thunb Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-11 Shuang Qiu; Ming Bai; Peng Zhao; Zhi-Xiang Liu; Xiao-Xiao Huang; Shao-Jiang Song
Phytochemical research on the flower buds of Lonicera japonica Thunb. led to the isolation of 15 compounds, including nine terpenoids (1–9), three phenylpropanoid glycosides (10–12), two alkyl glycosides (13–14) and an alkaloid (15). The structures of these compounds were determined by NMR spectroscopy and comparison with data from previous literatures. Among them, eleven compounds (2–5, 8, 10 and
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Aristolactam derivatives from Fissistigma glaucescens Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-11 Yue-Hang Zhong; Tan Yin-Feng; Xue-Ming Zhou; Gan Yan; Guang-Ying Chen
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Chemical constituents and chemotaxonomic study of Glycyrrhiza pallidiflora maxim Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-08 Chen Dai; Shuang Wang; Cristabelle De Souza; You-Ying Li; Chuang Zhou; Reng Qiu; Xiao-Zhou Xu; Hong-Lei Zhou; Yi Wu
Phytochemical study of Glycyrrhiza pallidiflora Maxim. gave seventeen compounds, including two sterols (3 and 4), four triterpenes (1, 2, 5, 6), ten flavones (7, 9–17), and one pterocarpan (8). The chemotaxonomic significance of G. pallidiflora was discussed, which indicated the close relationship between G. pallidiflora with other species of Glycyrrhiza. Moreover, pallidiflorin can be served as a
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Isoquinoline-derived alkaloids and one terpene lactone from the leaves of Duguetia pycnastera (Annonaceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-12-08 Victória Brandão Nardelli; César Augusto Silva de Souza; Jamal da Silva Chaar; Hector Henrique Ferreira Koolen; Felipe Moura Araújo da Silva; Emmanoel Vilaça Costa
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Metabolites of Machaerium isadelphum as chemophenetic markers of Machaerium genus Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-28 Daniela Patrón-González; Ramiro Ríos-Gómez; Virginia Flores-Morales; María Yolanda Rios
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A new cerebroside and bioactive compounds from Celtis adolphi-friderici Engl. (Cannabaceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-27 Kevine Johane Dongmo Jumeta; Donald Ulrich Kenou Kagho; Joel Eddy Terence Ateba; Yannick Stéphane Fongang Fotsing; Jean Jules Kezetas Bankeu; Norbert Sewald; Bruno Lenta Ndjakou; Lateef Mehreen; Muhammad Shaiq Ali; Augustin Silvère Ngouela
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Phytochemical and chemotaxonomic study on the dried rhizome of Menispermum dauricum DC Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-27 Wenjing Ren; Haoran Wu; Zhenhua Tian; Wenyu Zhang; Wenliang Dong; Haiqiang Jiang; Yuhong Liu
An alkaloid (1), an amide (2), three lactones (3, 6 and 7), two coumarins (4–5), eight lignans (8–15), four alcohols (16–19) and three phenols (20–22) are obtained from the EtOAc soluble portion of the MeOH extract of the rhizome of Menispermum dauricum DC. The chemical structures of the compounds are determined by using spectroscopic methods and further supported by comparison with previous literatures
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Preliminary investigation on chemical composition and bioactivity of differently obtained extracts from Symphytum aintabicum Hub.- Mor. &Wickens Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-26 Gokhan Zengin; Kouadio Ibrahim Sinan; Gunes Ak; Simone Angeloni; Filippo Maggi; Giovanni Caprioli; Alevcan Kaplan; Uğur Çakılcıoğlu; Hasan Akan; Sharmeen Jugreet; Mohamad Fawzi Mahomoodally
Symphytum species, commonly known as comfrey, hold a long history of folk medicinal uses for healing wounds, bone fractures and other pain resulting from inflammation. However, many species belonging to this genus have not yet been scientifically investigated and hence investigation in this regard is warranted. In the present research, S. aintabicum extracts prepared by different extraction techniques
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Anthraquinones and other constituents from the roots of Eremomastax speciosa (Hochst.) Cufod Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-18 Yolande Noëlle Nangue Djouatsa; Willifred Dongmo Tékapi Tsopgni; Edwige Laure Nguemfo; Livie Blondèle Kenou; Yannick Fouokeng; Ahri Bernie Djamen Mbeunkeu; Alain Bertrand Dongmo; Anatole Guy Blaise Azebaze
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Chemical constituents from the roots of Caragana grandiflora (M. B.) DC. and their chemotaxonomic importance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-13 Hoda Rahimi; Farzad Kobarfard; Tahereh Hosseinabadi
A comprehensive phytochemical research on roots of Caragana grandiflora, a native plant to Iran, resulted in isolation of ten compounds including four phenolic compounds (2, 4, 5, 8), two fatty alcohols (1, 6), one fatty acid (9), one triterpene (3), one glyceride derivatives (7) and one fatty acid methyl ester (10), from which eight compounds (1, 2, 4–6 and 8–10) were isolated from the genus Caragana
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Phytochemical and chemotaxonomic study on Piper pleiocarpum Chang ex Tseng Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-13 Xiao-Min Su; Qian Liang; Xin-Min Zhang; Meng Wang; Jing Wang; Zhen-Wei Wen; Fen Liu; Ting Nie; Jiao Xu; Rui Liu; Wen-Hui Xu
The phytochemical study of Piper pleiocarpum Chang ex Tseng led to the isolation of eighteen compounds (1–18), including ten lignanoids, galbelgin (1), (+) sesamin (2), denudatin A (3), hancinone (4), (7S,8S, 3′R)-Δ8'-3,3′,4-trimethoxy-3′,6′-dihydro-6′-oxo-7.0.4′,8.3′-lignan[(2S,3S,3aR)-2-(3,4-dimethoxyphenyl)-3,3a-dihydro-3a-methoxy-3-methyl-5-(2-propenyl)-6(2H))-benzofuranone] (5), (−)-(7R,8R)-machilin
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Chemical constituents from Valeriana jatamansi Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-10 Rujing Wang; Sanjun Shi; Yuzhu Tan; Lincai Yao; Lixia Zhu
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Phenolic compounds from parasitic Sapria himalayana f. albovinosa and Sapria myanmarensis (Rafflesiaceae) in Myanmar Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-05 Tsukasa Iwashina; Nobuyuki Tanaka; Mu Mu Aung; Hari Prasad Devkota; Takayuki Mizuno
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A new meroterpenoid from endophytic fungus Talaromyces amestolkiae CS-O-1 Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-03 Yunmei Fu; Chunhe Li; Jing Zhu; Luting Zhang; Yu Wang; Qili Chen; Liang Xu; Songya Zhang; Yue Fang; Tao Liu
Talaromyces amestolkiae CS-O-1, isolated from Tripterygium Wilfordii Hook. f., was identified based on its ITS and 18S rDNA gene sequencing. A new meroterpenoid, chrodrimanin T (1), along with six known compounds, nicotinamide (2), penipyridone D (3), penipyridone A (4), 3-benzylidene-8,8a-dihydroxy-2-methyl-hexahydro-pyrrolo[1,2-a]pyrazine-1,4-dione (5), butyl-isobutyl-phthalate (6), and aspergillumarin
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Isolation of hopane triterpenes and other constituents from Machaerium brasiliense vogel (Fabaceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-03 Juliana F. Silva; Gabriel R. Ximenez; Mirelli Bianchin; Jaqueline O. Jasper; Lindamir H. Pastorini; João E. Carvalho; Ana L.T.G. Ruiz; Armando M. Pomini; Silvana M.O. Santin
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Intra-population terpene polymorphism of Thymus pulegioides L.: Evidence for seven chemotypes in a German limestone grassland Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-01 Petra Wester; Bodo M. Möseler; Werner Knöss
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Cadinenes and other metabolites from Verbesina sphaerocephala A. Gray Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-01 Amira Arciniegas; Ana-L. Pérez-Castorena; José Luis Villaseñor; Alfonso Romo de Vivar
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Phytochemical constituents from the stem barks of Goniothalamus tapis Miq Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-11-01 Rosalind Pei Theng Kim; Sook Yee Liew; Khalijah Awang
Phytochemical investigation on the stem bark of Goniothalamus tapis Miq. led to the isolation of seven known styryl-lactones, 3-acetyl-isoaltholactone (1), goniothalamin (2), isoaltholactone (3), cheliensisin A (4), 7-epi-goniofufurone (5), goniopypyrone (6), garvensintriol (7), and two steroids, stigmasterol (8) and β-sitosterol (9). The structures of all the compounds were elucidated based on the
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A new acorane sesquiterpenes of Lysionotus pauciflorus maxim. Form Guizhou province, China Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-18 Jiayu Zhang; Ping Yi; Yan Xiong; Caixia Du; Yu Zhang; Chunmao Yuan; Liejun Huang; Wei Gu; Xiaojiang Hao
A new acorane sesquiterpene (1), together with fourteen known compounds were isolated from the whole plant of Lysionotus pauciflorus Maxim. The chemical structures of the compounds were identified by physio-chemical properties and 1D-NMR, 2D-NMR, ESI-MS, IR and ECD spectra. Among them, six compounds (1, 4, 6, 7, 13, 15) were first found in the genus Lysionotus. The chemotaxonomic significance of the
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Chalcones and flavans from the bark of Brosimum acutifolium subsp. interjectum (Moraceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-21 Ingrity S.C. Sá; Kidney O.G. Neves; Anderson C. Guimarães; Felipe M.A. da Silva; Rita de C.S. Nunomura
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Sesquiterpene-α-amino acid quaternary ammonium hybrids from Stereum complicatum (Steraceae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-21 Wilmer H. Perera; Kumudini M. Meepagala; Stephen O. Duke
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Chemical constituents from the whole plants of Sedum sarmentosum Bunge and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-23 Tieqiang Zong; Zhe Jiang; Yi Zhou; Jinfeng Sun; Jingyue Guo; Mei Jin; Wei Zhou; Gao Li
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Carotenoids of land-locked and sea-run types of masu salmon Oncorhynchus masou ishikawae inhabiting in the Nagara River, Japan, from the perspective of chemical ecological study Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-24 Takashi Maoka; Shinsuke Nakamura; Hideaki Hara
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Phytochemical constituents of leaves and twigs of Elaeagnus umbellata Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-24 Sunil Babu Paudel; Ah-Reum Han; Hyukjae Choi; Joo-Won Nam
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Phytochemical and chemotaxonomic study on Saussurea medusa Maxim. (Compositae) Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-12 Nan Wu; Yanfang Liu; Xinmiao Liang; Lijuan Mei; Yanduo Tao; Ruitao Yu
A phytochemical investigation of Saussurea medusa Maxim. led to the isolation of eleven compounds, including neoechinulin A (1), 8-hydroxypinoresinol (2), caruilignan D (3), 7(S)-hydroxyarctigenin (4), pinoresinol (5), arctigenin (6), arctii (7), epipinoresinol (8), loliolide (9), apigenin (10), and luteolin (11). Their structures were elucidated by spectroscopic methods and comparison with previously
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Chemical constituents from Potentilla fragarioides L Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-12 Yan Li; Kaijin Li; Huankai Yao
Phytochemical investigation on Potentilla fragarioides L. has led to the identification of twelve compounds including β-sitosterol (1), β-daucosterol (2), ursolic acid (3), pomolic acid (4), swinhoeic acid (5), (1-p-hydroxy-cis-cinnamoyl)cinnamic acid (6), trans-caffeoylisocitric acid (7), trans-caffeic acid (8), quercetin (9), quercetin-3-O-β-D-glucuronide (10), (+)-catechin (11) and 3-O-methylellagic
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Chemical constituents from Ailanthus altissima (Mill.) Swingle and chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-12 Ding-Ding Zhang; Ming Bai; Zhi-Yang Yan; Xiao-Xiao Huang; Shao-Jiang Song
Sixteen compounds were isolated from the root barks of Ailanthus altissima (Mill.) Swingle, including thirteen lignans (1–13), two coumarins (14–15), and one chalcone (16). This is the first report on the occurrence of compounds 1–16 in the genus Ailanthus. Their structures were elucidated on the basis of NMR spectroscopic data. The plant distribution network of all isolated compounds was described
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Phenylethaniod glycosides from Orobanche pycnostachya Hance and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-09 Xiaoqin Wang; Caifeng Li; Linlin Jiang; Hui Huang; Minhui Li
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Phytochemical investigation on the fruits of Camptotheca acuminata and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-08 Ye Chang; Ming Bai; Huan He; Shun-Wang Huang; Shao-Jiang Song
A phytochemical investigation on the fruits of Camptotheca acuminata led to the isolation of 13 compounds, including five coumarins (1–5), two alkaloids (6 and 7), two triterpenoids (8 and 9), three lactones (10–12) and a sesquiterpene (13). The structures of these compounds were elucidated by extensive spectroscopic methods and comparion with literature data. All compounds were isolated from the Nyssaceae
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Two new quinic acid derivatives from the fruits of Chaenomeles speciosa Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-11 Ruixi Gao; Shuying Xiong; Tianpei Zhang; Xin Deng; Jun Li; Maochuan Liao
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Comparative analysis of Laurencia tristicha and Laurencia okamurai based on qualitative and quantitative HPLC determination Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-11 Juan Zhang; Lun-Yong Shi; Lan-Ping Ding; Hong Liang; Peng-Fei Tu; Qing-Ying Zhang
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Cracking the chemical code: European common lizards (Zootoca vivipara) respond to an hexane soluble predator kairomone Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-06 Charlotte Van Moorleghem; Dirk Bauwens; Katja Claus; José Martín; Raoul Van Damme
In many animals, chemosensation acts as a first line of defence against snake predators. However, in spite of their obvious importance, the chemical nature of cues used by prey to detect snakes remains to be discovered. Here, we analyse which neutral lipids, extracted with n-hexane, are present in the skin of the European adder (Vipera berus) using Gas Chromatography – Mass Spectrometry. The analyses
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Secondary metabolites produced by mangrove endophytic fungus Aspergillus fumigatus HQD24 with immunosuppressive activity Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-05 Zhi-Yong Xu; Xue-Xia Zhang; Jian-Kun Ma; Yong Yang; Jing Zhou; Jing Xu
Immunosuppressive activity guided chemical investigation, four alkaloids (1–4) and eight polyketides (5–12) were isolated from mangrove-derived Aspergillus fumigatus HQD24. Their structures were elucidated unambiguously based on the comprehensive spectroscopic analysis and comparison with literature data. Compounds 1 and 3–5 were separated from mangrove endophytic fungi for the first time, 3 and 12
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Polymethoxylated flavonoids from Murraya paniculata (L.) Jack Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-09-30 Haizhen Liang; Mingbo Zhao; Pengfei Tu; Yong Jiang
A new flavone, 3′-hydroxy-5,6,7,4′,5′-pentamethoxyflavone (1), and three natural products (7, 10, and 14) were isolated from the leaves and twigs of Murraya paniculata (L.) Jack, together with 10 reported polymethoxylated flavonoids. The structure of compound 1 was elucidated on the basis of comprehensive analysis of 1D and 2D NMR and HRMS spectroscopic data. Moreover, the chemotaxonomic significance
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Chemical constituents from starfish Culcita novaeguineae Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-10-01 Yun-Yang Lu; Ying-Da Feng; Xue-Feng He; Pei Fan; Peng-Cheng Qiu; Hai-Feng Tang
Seven polyhydroxylated steroidal glycosides (1–7) and two polyhydroxylated sterols (8, 9) were isolated and identified from the 75% ethanol extract of starfish Culcita novaeguineae which was collected in Xisha Islands of South China Sea. The structures of the isolated compounds were elucidated on the basis of spectroscopic data, physical and chemical evidence, MS spectrum and assisted by comparison
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Alkaloids from the leaves of Isatis indigotica fortune and their chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-09-30 Liguo Yang; Chenlin He; Sudunabuqi; Xiaohua Bao; Xiulan Wang; Wuliji Ao
From the leaves of Isatis indigotica Fortune, one new alkaloid, namely (2E)-N-(2-hydroxyphenyl)-2-(1-hydroxy-3-oxoindolin-2-ylidene) acetamide (1), together with four known ones, such as phaitanthrin D (2), methyl quindoline-11-carboxylate (3), cephalandole B (4) and 2,2-di (3-indolyl)-3-indolone (5) were isolated and identified. The structure of compound 1 was elucidated by means of spectroscopic
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Chemical constituents from Picrasma quassioides (D.Don) Benn. and their network analysis of chemotaxonomic significance Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-09-26 Jing-Xian Ren; Ming Bai; Wen-Yu Zhao; Xiao-Xiao Huang; Shao-Jiang Song
A phytochemical investigation of Picrasma quassioides (D.Don) Benn led to the isolation of seventeen compounds including five coumarins (1–5), six lignans (6–11), two alkaloids (12–13), two phenolic compounds (14–15), one megastigman glycoside (16) and one phenylpropanoid (17). The structures of those compounds were determined by spectroscopy data of NMR spectra. All of the compounds were isolated
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Comparative analysis of the constituents of two cultivars of Dioscorea dumetorum (Kunth) Pax. and their molecular barcoding Biochem. Syst. Ecol. (IF 1.085) Pub Date : 2020-09-17 Adedapo Adedayo Adeniran; Mubo Adeola Sonibare; Shashi Kumar
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