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Sinucrassins A—K, Casbane‐type Diterpenoids from the South China Sea Soft Coral Sinularia crassa
Author(s) -
Wu MengJun,
Liu Jiao,
Wang JianRong,
Zhang Juan,
Wang Hong,
Jiang ChengShi,
Guo YueWei
Publication year - 2021
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.202100253
Subject(s) - chemistry , coral , circular dichroism , stereochemistry , crystallography , oceanography , geology
Main observation and conclusion A detailed chemical study on the Hainan soft coral Sinularia crass has resulted in the isolation and characterization of eleven casbane‐type diterpenoids, named sinucrassins A—K (1—11), along with six known related ones (12—17). Their structures were elucidated by extensive spectroscopic analyses and comparison with the reported data. The absolute configurations of new compounds were determined by the X‐ray diffraction analysis and computer‐assisted structural elucidation including 13 C NMR data calculation and time‐dependent density functional theory/electronic circular dichroism calculation.