Author:
Pauptit RA,Waters JM,Rowan DD,Russell GB,Connor HE,Purdie AW
Abstract
The structure of l9αH-lupeol
methyl ether isolated from Chionochloa bromoides has been determined by 13C n.m.r.
spectroscopy and X-ray diffraction. Crystals of the triterpene
are monoclinic, space group P21, with a 8.071(1), b
14.5477(6), c 11.6061(4) �, β
104.466(5)�, V 319.6 �3 and Z 2. The structure was solved by direct
methods, and was refined to R 0.054 for 1092 observed reflections. Previous
reports of synthetic and naturally occurring 19αH-lupanes are briefly
discussed, as is the distribution of the chemotaxonomically
discriminating triterpene methyl ethers in Chionochloa.
Cited by
14 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献