Studies on the constituents of the crude drug 'Fritillariae Bulbus'. III. On the diterpenoid constituents of fresh bulbs of Fritillaria thunbergii Miq

In addition to trans-communol and trans-communic acid (obtained in the form of the methyl ester), seven new diterpenoids were isolated as non basic constituents from fresh bulbs of Fritillaria thunbergii MIQ. (Liliaceae). Their structures were determined to be isopimaran-19-ol (3), isopimaran-19-oic...

Full description

Saved in:
Bibliographic Details
Published inChemical & pharmaceutical bulletin Vol. 30; no. 11; pp. 3912 - 3921
Main Authors Kitajima, J, Komori, T, Kawasaki, T
Format Journal Article
LanguageEnglish
Published The Pharmaceutical Society of Japan 1982
Subjects
C-NMR
plant biochemistry
plant physiology
Online AccessGet full text

Cover

More Information
Summary:In addition to trans-communol and trans-communic acid (obtained in the form of the methyl ester), seven new diterpenoids were isolated as non basic constituents from fresh bulbs of Fritillaria thunbergii MIQ. (Liliaceae). Their structures were determined to be isopimaran-19-ol (3), isopimaran-19-oic acid [obtained in the form of the methyl ester (4)], ent-kauran-16β, 17-diol (5), ent-kauran-16α, 17-diol (6), ent-16β, 17-epoxy-kaurane (7), ent-16α-methoxy-kauran-17-ol (8), and ent-kaur-15-en-17-ol (9).
ISSN:0009-2363
1347-5223
DOI:10.1248/cpb.30.3912