title: [Chemical constituents from Bufonis periostracum and their antitumor activity in vitro].
abstract: Eight compounds were isolated from Bufonis periostracum by repeated column chromatography on silica gel, ODS and Sephadex LH-20 and their structures were characterized as palmitatic acid cholesteryl ester (1), cholesterol (2), 5alpha, 8alpha-epidioxycholesta-6-en-3beta-ol (3), cholest-5-en-3beta, 7beta-diol (4), cholest-7-en-3beta, 5alpha, 6beta-triol (5), 3-octaddecyloxy-1, 2-propanediol (6), isisamide (7) and bufothionine (8) on the base of spectral analysis. Compounds 1-8 were isolated from Bufonis periostracum for the first time and compounds 3, 5, 6, 7 were obtained from Bufo bufo gargarizans and Bufo genus for the first time. The bioassays showed all tested samples displayed no antitumor activity against the cell lines such as A549, BeL 7402, HGC-27 and HL-60, except the control compound bufalin.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
authors.forename: Huimin
authors.initials: H
authors.lastname: Gao
authors.forename: Xiyan
authors.initials: X
authors.lastname: Wu
authors.forename: Zongyun
authors.initials: Z
authors.lastname: Li
authors.forename: Yun
authors.initials: Y
authors.lastname: You
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Wang
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D002023:Bufo bufo / Q000378:metabolism; D002025:Bufonidae / Q000378:metabolism*; D006801:Humans
chemical_list: D000970:Antineoplastic Agents