[摘要]：Four 5,6-dihydro-17-hydroxy icogenin analogs were designed and synthesized. Their in vitro antitumor activities were tested by the standard MTT assay. Compound 22 (IC(50) = 3.38-8.30 mu M) and compound 23 (IC(50) = 1.90-9.69 mu M) showed potential antitumor activities against the entire tested seven cancer cell lines. The SAR (structure activity relationship) research showed that the introduction of 17-hydroxy lowered the antitumor activity to an extent. (C) 2012 Elsevier Masson SAS. All rights reserved.
