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Two New Furanoid Diterpenoids from Tinospora sagittata
Author(s) -
Shi LinMei,
Li RongQun,
Liu WenHong
Publication year - 2008
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200890105
Subject(s) - chemistry , stereochemistry , diterpene , glucoside , terpenoid , mass spectrometry , menispermaceae , chromatography , medicine , alternative medicine , pathology , alkaloid
Two new clerodane‐based furanoid diterpenoids, tinosagittones A and B ( 1 and 2 , resp.), were isolated from the roots of Tinospora sagittata , together with five known diterpenoids, i.e. , columbin ( 3 ), its glucoside palmatoside C ( 4 ), isocolumbin ( 5 ), 6‐hydroxycolumbin ( 6 ), and tinophylloloside ( 7 ). Their structures were established by mass spectrometry and spectroscopic methods, especially 2D‐NMR techniques.