Phenylpropanoids from fruits and stems of piper ribesioides

Abstract

Examination of the chloroform extract of Piper ribesioides Wall. Fruits revealed the presence of two phenylpropanoids ; hinokinin and bornyl p-coumarate, the latter of which has never been reported in the genus Piper before. Two benznoids ; methyl 2E, 4E, 6E-7-phenyl-2, 4, 6-heptatrienoate and methyl piperate, and four unidentified components were isolated from the stems of Piper ribesioides Wall. The structure elucidation elucidation of hinokinin, bornyl p-coumarate, methyl 2E, 4E 6E-7-phenyl-2, 4, 6-heptatrienoate and methyl piperate was based on the chemical and physical properties including the spectroscopic data.