J Integr Plant Biol. ›› 1988, Vol. 30 ›› Issue (3): -.

• Research Articles •    

Study on the Chemical Constituents of Comastoma pulmonarium (Turcz.) Toyohuni

Fan Shu-fen, Hu Be-ling, Ding Jin-ye and Sun Hong-fa   

Abstract: Eight compounds were isolated from Comastoma pulmonarium (Gentianaceae). Theirstructures are identified as1,8-dihydroxy-3,5-dimethoxyxanthone(Ⅰ),1,8-dihydroxy-3,7-dimetho-xyxanthone(Ⅱ), 1-hydroxy-3,7,8-trimethoxyxanthone(Ⅲ),8-hydroxy-l,3,5-trimethoxyxanthone(Ⅳ), 1,3,8-trihydroxy-7-methoxyxanthone(Ⅴ), 1-O-β-D-glucopyranosyl-3,8-dihydroxy-7-methxy-xanthone(Ⅵ), oleanolic acid(Ⅶ) and swertisin(Ⅷ) by means of chemical methods andUV, IR, NMR and MS respectively. The compound Ⅵ is a new natural product. It wasnamed as comastomaside.

Key words: Comastoma pulmonarium, Xanthone, Oleanolic acid, Swertisin, Comasto-Maside

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