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Stereochemical determination of NMR chemical shifts in marine terpenoids, antheliol and sangiangol B, using DFT calculations
Natural Product Research ( IF 1.9 ) Pub Date : 2022-11-17 , DOI: 10.1080/14786419.2022.2147171
Novriyandi Hanif 1 , Fabians Faisal Dinelsa 1 , Henny Dwi Yanti 2 , Anggia Murni 2 , Junichi Tanaka 3
Affiliation  

Abstract

Stereochemical determination of the flexible trinor-guaiane sesquiterpenoid, antheliol (1a) and the flexible diterpenoid, sangiangol B (2a), isolated from a marine soft coral, Anthelia sp., was supported by quantum chemical calculations of NMR chemical shifts at DFT levels. The relative configuration of antheliol is now revealed, as 1S*, 4S*, 7S*, 10R* as in 1b, whereas sangiangol B (2c) has complete stereochemistry as 1S*, 7R*, 8R*, 10R*, 11R*, 12S*.



中文翻译:

使用 DFT 计算立体化学测定海洋萜类化合物、anttheliol 和 sangiangol B 中的 NMR 化学位移

摘要

从海洋软珊瑚Anthelia sp. 中分离出的柔性三去甲烷倍半萜类化合物 antheliol ( 1a ) 和柔性二萜类化合物 sangiangol B ( 2a )的立体化学测定得到了 DFT 水平 NMR 化学位移的量子化学计算的支持。现在揭示了 antheliol 的相对构型,如1b中的1 S*、 4 S*、 7 S*、 10 R*,而 sangigol B ( 2c ) 具有完整的立体化学,如 1 S*、 7 R*、 8 R* , 10 R* , 11 R* , 12 S*

更新日期:2022-11-17
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