Synthesis of the A,B-ring-truncated OSW saponin analogs and their antitumor activities
摘要:
The A,B-ring-truncated OSW saponin analogs (1, 18a, and 18b) were synthesized. These greatly simplified trans-hydrin-dane disaccharides retained considerable inhibitory activity against the growth of HeLa and Jurkat T cells (IC50 = 0.8-21.1 mu M). (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis of the A,B-ring-truncated OSW saponin analogs and their antitumor activities
摘要:
The A,B-ring-truncated OSW saponin analogs (1, 18a, and 18b) were synthesized. These greatly simplified trans-hydrin-dane disaccharides retained considerable inhibitory activity against the growth of HeLa and Jurkat T cells (IC50 = 0.8-21.1 mu M). (c) 2007 Elsevier Ltd. All rights reserved.
Calciferol and its relatives. Part X. Ring-contraction routes to some 8-methyl-trans-perhydroindanones
作者:T. M. Dawson、P. S. Littlewood、B. Lythgoe、T. Medcalfe、M. W. Moon、P. M. Tomkins
DOI:10.1039/j39710001292
日期:——
Methods based on a ring-contraction of cyclic αβ-epoxy-ketones to give α-hydroxy-acids are used for the preparation of some 8-methyl-trans-perhydroindanone derivatives of possible interest in connection with the synthesis of 9,10-seco-steroids. They include the unsaturated ketones (10) and (22), and the hydroxy-ketones (14), (21), (46), and (49).