Chemistry of fijian plants. V. Constituents of Fagraea gracilipes A. Gray.

Five new compounds were isolated from the heartwood of the Fijian tree Fagraea gracilipes A. Gray in addition to methyl p-coumarate, methyl caffeate, methyl sinapate, and the secoiridoid glucoside sweroside. The new compounds have been identified as methyl syringate α-L-rhamnoside, (Z)-5-ethylidene-3, 4, 5, 6-tetrahydro-cis-6, 8-dimethoxy-1H, 8H-pyrano[3, 4-c]pyran-1-one, (Z)-5-ethylidene-3, 4, 5, 6-tetrahydro-trans-6, 8-dimethoxy-1H, 8H-pyrano[3, 4-c]pyran-1-one, 3-O-sinapoyl D-glucose and 3'-O-sinapoyl sweroside by spectroscopic methods, chemical conversion and X-ray analysis.