SB-204900, a Novel Oxirane Carboxamide from <i>Clausena lansium</i>

Abstract

SB-204900 ( 1 ), a novel oxirane carboxamide, has been isolated from a hexane extract of the fruit tree Clausena lansium (Rutaceae). The structure of 1 was determined by detailed spectroscopic methods and unambiguously confirmed by a single-crystal X-ray diffraction study.