ABSTRACT
Object To study the active constituents of Sanguis Draxonis made form Dracaena cochinchinensis (Lour ) S C Chen in China * Methods Various column chromatographies with Sephadex L 20 gel, MCI gel and silica gel were employed for the isolation and purification The structures of compounds were elucidated by spectral analysis Results Twelve compounds were isolated from the commercial product available on the market By means of spectral data, they were identified as 26 O ? D glucopyranosyl furostan 5,25 (27) diene 1?,3?,22?,26 tetrahydroxy 1 O ? L arabinopyranoside (Ⅰ); 3, 4 dihydroxy allylbenzene 4 O ? D glucopyranoside (Ⅱ); 7 hydroxy 3 (p hydroxyphenyl) chroman (Ⅲ); 7, 4′ dihydroxy 3′ methoxyflavan (Ⅳ); 3, 4 dihydroxyallylbenzene (Ⅴ); resveratrol (Ⅵ); 7, 4′ dihydroxy flavanone (Ⅶ); di (p hydroxyphenyl) methane (Ⅷ); acanthoside B (Ⅸ),p hydroxybenzoic acid (Ⅹ); hydroquinone (Ⅺ) and protocatechualdehyde ( ⅩⅡ ) Conclusion Compound Ⅰ and Ⅱ are new natural glycosides, and Ⅴ and Ⅵ are isolated from D cochinchinensis for the first time