ISOLATION OF FOUR INDOLIZINO[8,7-b]INDOLE-5-CARBOXYLIC ACIDS FROM CLERODENDRON TRICHOTOMUM THUNB

Four indolizino[8,7-b]indole-5-carboxylic acids were isolated as the methyl esters from Clerodendron trichotomum Thunb, and the structures elucidated on the basis of their spectral and chemical evidences.