作者:Sunil K. Talapatra、Abinas C. Sarkar、Bani Talapatra
DOI:10.1016/0031-9422(81)84036-8
日期:1981.1
Abstract Rubicoumaric acid and rubifolic acid isolated fromRubiacordifolia have been shown to be 30-hydroxy-3β-p-hydroxycoumaryloxy-urs-12-ene-28-oic acid and 3β,30-dihydroxy-urs-12-ene-28-oic acid(30-hydroxyursolic acid) respectively on the basis of 1H NMR, 13C NMR and mass spectral and chemical evidence.