Diterpenes from Hyalis argentea
1997; Elsevier BV; Volume: 44; Issue: 3 Linguagem: Inglês
10.1016/s0031-9422(96)00517-1
ISSN1873-3700
AutoresMaría I. Ybarra, Susana Borkosky, César A.N. Catalán, Carlos M. Cerda‐García‐Rojas, Pedro Joseph‐Nathan,
Tópico(s)Phytochemistry and Biological Activities
ResumoThe aerial parts of Hyalis argentea yielded, in addition to four known ent-kaurenes, three known guaianolides and one coumarin, the new (7R)-ent-15-oxokaur-16-en-7-ol-19-oic acid β-glucopyranosyl ester and three new diterpene lactones which biosynthetically seem to be derived from ent-15-oxokaurenoic acid. The structures were determined mainly by one- and two-dimensional spectroscopy.
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