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Uncinatone, a New Antifungal Hydroquinone Diterpenoid from Clerodendrum uncinatum S CHINZ
Author(s) -
Dorsaz AnneChristine,
Marston Andrew,
StoeckliEvans Helen,
Msonthi Jerome D.,
Hostettmann Kurt
Publication year - 1985
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.19850680612
Subject(s) - chemistry , hydroquinone , verbenaceae , terpenoid , diterpene , antifungal , stereochemistry , botany , organic chemistry , biology , microbiology and biotechnology
A new hydroquinone diterpenoid was isolated from Clerodendrum uncinatum S CHINZ (Verbenaceae) by flash chromatography on silica gel. The structure was established as 7,11‐dihydroxy‐3,4,9,11b‐tetramethyl‐1,2,8,9,11b‐pentahydrophenanthro[3,2‐ b ]furan‐6(2 H )‐one by spectroscopic methods and X‐ray analysis. The diterpene was strongly fungitoxic to spores of Cladosporium cucumerinum .