Chemical examination of the fruits of Solanum xanthocarpum

Abstract

The material used in this investigation consisted of fresh fruits collected from Thana (near Bombay), and dried in air. The material was ground and successively extracted with petroleum ether and alcohol. From the petroleum ether extract were obtained: (1) an oil, and (2) a sterol C₃₆H₅₄O₄, m.p. 248°C., designated "carpesterol". From the alcoholic extract were obtained: (1) a gluco-alkaloid C₄₄H₇₇O₁₉N, m.p. 288-89°C. (decomp.) named "solancarpine," (2) an alkaloid C₂₆H₄₃O₃N, m.p. 197-98°C. named "solancarpidine," (3) sugars: (i) glucose, (ii) rhamnose, and (iii) a hexose, probably galactose, and (4) an inorganic salt "potassium chloride". One of us (I. Z. S.) takes this opportunity to express his sincere thanks to Principal Dr. T. S. Wheeler for his keen interest and valuable assistance.