New Dammarane Triterpenoids Caffruones A–D from the Cherries of Coffea arabica

摘要

AbstractIn present study, four new dammarane-type triterpenoids, namely caffruones A–D (>1–>4), were isolated from the cherries of Coffea arabica. Their structures were elucidated by extensive spectroscopic analysis including 1D, 2D NMR (HSQC, HMBC, ¹H–¹H COSY, and ROESY), HRMS and IR spectra. This is the first time that tetracyclic triterpenes have been reported in genus Coffea.