(S)-2-Methyl-2-(4-methylpent-3-enyl)-6-(propan-2-ylidene)-3,4,6,7-tetrahydropyrano[4,3-g]chromen-9(2H)-one

Abstract

A novel chromene, (S)-2-methyl-2-(4-methylpent-3-enyl)-6-(propan-2-ylidene)- 3,4,6,7-tetrahydropyrano[4,3-g]chromen-9(2H)-one (1), was isolated from the leaves of Peperomia pellucida (Piperaceae). The chemical structure of 1 was determined by spectroscopic methods and comparison with those related compounds previously reported.