title: Synthesis of OSW-1 analogs with modified side chains and their antitumor activities.
abstract: Four analogs of OSW-1 (1-4) with modified side chains on the steroidal skeleton were synthesized following modification of our previous route for the total synthesis of OSW-1. Testing of the analogs against growth of tumor cells demonstrated that the 22-one function and the full length of the side chain of OSW-1 were not required for the antitumor action of OSW-1.
authors.affiliation: State Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
authors.forename: Lehua
authors.initials: L
authors.lastname: Deng
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.forename: Biao
authors.initials: B
authors.lastname: Yu
authors.forename: Manrong
authors.initials: M
authors.lastname: Jiang
authors.forename: Jiarui
authors.initials: J
authors.lastname: Wu
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D002783:Cholestenones / Q000138:chemical synthesis / Q000494:pharmacology*; D015195:Drug Design; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D020128:Inhibitory Concentration 50; D012503:Saponins / Q000138:chemical synthesis / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: D000970:Antineoplastic Agents; D002783:Cholestenones; D012503:Saponins; C106408:OSW 1