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

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

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

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

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

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

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

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

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

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

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

A phytochemical investigation on the rhizome of Anemone hupehensis resulted in the isolation of thirteen compounds, including six neolignan glycosides (1-6), two phenylpropanoid glycosides (7, 8), a phenolic glycoside (9) and four triterpenoid saponins (10-13). The structures of the isolated compounds were elucidated on the basis of spectroscopic data. This is the first report of neolignan glycoside

The phytochemical investigations on the seeds of Raphanus sativus L. led to the isolation and identification of 15 compounds, including eleven sinapoyl derivatives (1–11), two terpenes (12–13), and two phenolic acids (14–15). All chemical structures were elucidated via 1H NMR and 13C NMR spectroscopic methods, and further supported by comparison with literature data. Compound 11 was isolated from the

The phytochemical investigation of Sigmatanthus trifoliatus Huber ex Emmerich (Rutaceae) allowed the isolation and identification of the coumarins seselin, osthol, coumurrayin and braylin, besides the furoquinoline alkaloids evolitrine, dictamnine, γ-fagarine and skimmianine. Their chemical structures were determined based on MS, NMR analyses, and supported by comparison with those reported in the

Phytochemical investigation of Cajanus scarabaeoides (L.) Thouars (Fabaceae) led to the isolation of six compounds. The chemical structures of all compounds were determined by spectroscopic methods. All isolates were reported from this species for the first time. The presence of these compounds is consistent with the chemical classes reported from other members of the genus Cajanus. In summary, this

Twenty compounds were obtained from Glycyrrhiza glabra L., which were divided as fatty alcohols (1 and 5), sterols (2, 4 and 8), triterpenes (3, 6 and 7), flavones (9, 12–15), coumarins (10, 11, 19 and 20) and stilbenes (16–18). The chemotaxonomic significance of G. glabra and the other species among Fabaceae was also discussed. As a result, genus Glycyrrhiza may have close relationships with genera

Clerodendrum infortunatum L. (syn.: Clerodendrum viscosum Vent.), a member of the Lamiaceae, yielded one undescribed jasmonic acid derivative, ten acteosides, and two flavonoids. The jasmonic acid derivative was identified as 6'-O-caffeoyl-12-glucopyranosyloxyjasmonic acid. The acteosides were identified as isoacteoside, acteoside, 2''-O-acetyl-martyonside, 3''-O-acetyl-martyonside, martynoside, brachynoside

The phytochemical study of the roots of Scorzonera divaricata Turcz led to the isolation of 27 compounds, including eight sterols (1–8), one lignan (9), two cumarins (10, 11), five phenylpropanoids (12–16), six benzene derivatives (17–22), methyl-β-D-fructofuranoside (23), monolinolein (24), and three aliphatic acids (25–27). The structures of isolated compounds were identified using NMR and ESI-MS

The volatile secondary metabolites emitted from the buds of 22 different species and two varieties of birch were analyzed using headspace solid-phase microextraction and gas chromatography-mass spectrometry (HS-SPME/GC-MS) methods. The volatile compositions of 21 birch buds are reported for the first time, to our knowledge. Both the mass spectral data and the calculated retention indices were used

In the traditional Tibetan medicinal system, the medicinal parts of Nardostachys jatamansi (D.Don) DC. include the dried roots and rhizomes, which is effective in treating various diseases. In this study, molecular evolutionary analysis based on three markers (i.e., ITS, matK and rbcL), and principal component analysis (PCA) combined with 1H NMR measurements were used to assess the genetic and chemical

Fifteen compounds (1–15) were isolated from Dictamnus dasycarpus Turcz. The structures of all compounds were elucidated on the basis of spectroscopic data. Their structures were identified as dictamnine (1), skimmianine (2), haplopine (3), γ-fagarine (4), dasycarine (5), glycolone (6), 8,9-dimethoxygeibalansine (7), 7,8-dimethoxymyrtopsine (8), 8-methoxyflindersine (9), 3-formylindole (10), kihadanin

A new adduct of iriflophene and flavonoid, 1, 8, 10, 10b-tetrahydroxy-3-methoxy-5a-(3,4-dihydr- oxyphenyl)-9-(4-hydroxybenzoyl)-5a,10b-dihydro-11H-benzofuro[2,3-b]chromen-11-one (1), together with six known compounds were isolated from the EtOH extract from Sedum aizoon L. Their chemical structures were elucidated by analyses of spectral data. The chemotaxonomic analysis of the compounds was discussed

The present study is focused on the phytochemical analysis of the aerial parts of Symphytum anatolicum and Cynoglottis barrelieri (Boraginaceae). Their methanol extracts were subjected to qualitative LC-MS analysis, sixteen secondary metabolites have been identified from S. anatolicum and eighteen from C. barrelieri, respectively. Sixteen among all are phenolic derivatives (phenolic acids and flavonoids)

Chemical investigation of the traditional Chinese medicine Amomum kravanh led to the isolation of a new secolignan (1), two flavonoids (2 and 3), four monoterpenoids (4–7) and six steroids (8–13). Compounds 1, 5–8 and 12–13 were isolated from the family Zingiberaceae for the first time. Compound 1 is the first lignan reported in the genus Amomum and compound 8 is firstly described as a natural product

A new lignanoid (1), together with six known lignanoids (2–7) and four known flavonoids (8–11), were isolated from the EtOAc extract of Liparis japonica. Their structures were determined by analyzing the HRESIMS, NMR, CD spectroscopic data, and comparing with the reported literatures. Among them, 1 was a new compound, 2–11 were first isolated from L. japonica and the genus of Liparis. The chemotaxonomic

A phytochemical investigation of Anemone vitifolia (Buch.-Ham.) led to the isolation of twelve compounds, including six lignans (1–6), four benzoic acid esters (7–10), one norsesquiterpenoid (11) and one lactone (12). The structures of these metabolites were established on the basis of detailed spectroscopic analysis, as well as comparisons with the data available in the literature. Among them, compounds

The isolation and identification of sixteen compounds extracted from the aerial parts of A. fruticulosa have been reported in the present study, including eight flavonoids (1, 2, 3, 4, 5, 6, 7 and 8), three terpenoids (9, 10 and 11), two sterols (12 and 13), one lignan (14), one fatty acid (15) and one fatty acid ethyl ester (16), wherein six compounds (2, 3, 4, 5, 10 and 14) have been isolated from

Sideritis congesta, an endemic plant to Turkey, is extensively consumed as energizing herbal tea and used as a remedy in folk medicine. This study was designed to comparatively evaluate the phytochemical composition and antioxidant potentials of different extracts (methanol, infusion) and fractions (chloroform, ethyl acetate, and remaining water) of S. congesta. Antioxidant potentials of the samples

Schisandra chinensis (Turcz.) Baill. is one of the important traditional medicinal plants in East Asia. It is a dioecious plant with aromatic flowers. The female and male flowers of S. chinensis possess slightly different fragrance characteristics. The overall scent of S. chinensis flowers is quite similar to that of Syringa dilatata (Korean lilac) flowers. Hence, this study aimed to understand the

Common thyme (Thymus vulgaris L.) is a Mediterranean evergreen shrub of the Lamiaceae that shows chemical polymorphism in its natural populations. In Mediterranean habitats six basic chemotypes have been described according to the main component in its essential oil: thymol, carvacrol, linalool, geraniol, α-terpineol, thuyanol-4, of which the thymol chemotype is widely used in cultivation and as a

Phytochemical study of Pteris ensiformis Burm. resulted in the isolation of eleven compounds, including three sesquiterpenoids (1–3), one alkaloid (5), one amino acid (6), one flavonoid (7), four phenolic acids (4, 8, 9 and 10), and one coumarin (11). Structures of these compounds were deduced from the ESI-MS and NMR data. This is the first report on the isolation of compounds 1, 2, 7 and 11 from P

Emilia fosbergii is a member of the tribe Senecioneae (Asteraceae), most species of which contain pyrrolizidine alkaloids. Notwithstanding, the phytochemistry of E. fosbergii is poorly understood, and pyrrolizidine alkaloids produced by this species have yet to be characterized. In this work, the presence of 11 pyrrolizidine alkaloids, three caffeoylquinic acid derivatives, and six flavonoids were

Phytochemical investigation on the water-soluable portions of the EtOH extracts of the flowers of Coreopsis tinctoria Nutt. led to the isolation of six flavonoids, including a new okanin glycoside. The structures of these compounds were identified by spectroscopic analysis, chemical method, and comparison with the literature.

The European dewberry (Rubus caesius) is a perennial shrub that is widely distributed in Europe but can also be found in North America. In folk medicine, the European dewberry is used to treat hyperglycaemia, diarrhoea and inflammation. LC-MS analysis of the European dewberry confirmed the presence of 35 compounds, mostly flavonoids, phenolic acids and derivatives of ellagic acid. Phytochemical analysis

Phytochemical investigation of Silene schimperiana Boiss. ethanolic extract led to the isolation of fifteen compounds (1–15). The isolated compounds were identified by their NMR, MS spectral data analyses and comparing with published data as: vanillic acid (1), ferulic acid (2), caffeic acid (3), ethyl ferulate (4), apigenin (5), hesperetin (6), diosmetin (7), luteolin (8), kaempferol (9), quercetin

The present study evaluates the effects of severe drought stress on the content of phenolic compounds in olive leaves, namely hydroxytyrosol, tyrosol, p-hydroxybenzoic acid, catechin, luteolin 7-O-rutinoside, luteolin 7-O-glucoside, apigenin 7-O-glucoside, quercetin, apigenin, pinoresinol, oleuropein and verbascoside in greenhouse-grown plantlets. The results showed that oleuropein, verbascoside, luteolin

Phytochemical investigation of the leaves of Isatis tinctoria Linnaeus led to the isolation of thirty compounds, including thirteen indole alkaloids (1–13), seven quinazolinone alkaloids (14–20), two quinoline alkaloids (21–22), one quindoline alkaloid (23), one simple amide alkaloid (24) and six monoterpenes (25–30). According to spectroscopic data analysis and comparison with the previously reported

The Essential Oils (EOs) present numerous chemophenetic applications, mostly at infrageneric rank. EOs utilization for this purpose has been questioned because of the external stimulations that control their chemodiversity and quantitative composition. Therefore, they are considered as a class of natural products with questionable systematic significance. Present study exploiting the recent advances

The essential oil of the fresh leaves of Platycladus orientalis (L.), grown in four different biogeographic zones of Jordan,- (the Mediterranean, Irano-Turanian, Saharo-Arabian, and Sudanian penetration) -, were obtained by hydrodistillation and analysed by gas chromatography (GC) and gas chromatography-mass-spectrometry (GC/MS). The actual composition of the spontaneous emitted volatiles was obtained

Phytochemical characterization of the whole plants of Erigeron breviscapus (Vant.) Hand.-Mazz. Led to the isolation of two indole derivatives (1–2), seven monoterpenoids (3–9), two sesquiterpenoids (10–11), and four pyrone derivatives (12–15). The structures of these compounds were examined with spectroscopic methods, and also by comparing with previously reported spectroscopic data. Among them, ten