Alkaloids fromEsenbeckia pilocarpoides

Abstract
A preliminary screening showed the occurrence of alkaloids only in root bark and roots of Esenbeckia pilocarpoides H. B. K., (Rutaceae). Six alkaloids have been isolated and identified from root bark: one acridone, 1-hydroxy-3-methoxy-N-methyl-acridone; four furoquinolines, maculine, flindersiamine, kokusaginine, kokusagine; the sixth, isomaculine, a furo-4-quinolone, known as a synthetic product, has been isolated for the first time from a natural source.

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