Synthesis and biological evaluation of C-1 and ring modified A-norpaclitaxels
摘要:
1-deisopropenyl-1-acetoxy-A-norpaclitaxel, 1-deisopropenyl-A-norpaclitaxel, 1-deisopropenyl-1-acetyl-8,9-oxido-A-norpaclitaxel, and A-nor-C-norpaclitaxel were synthesized. The biological activities of these analogs were determined, and structure-activity relationships for the C-1 position are suggested. (C) 1999 Elsevier Science Ltd. All rights reserved.
Synthesis and biological activity of A-nor-paclitaxel analogues
摘要:
A number of paclitaxel analogues with a 5-membered A-ring (A-nor-paclitaxels, or (15 right-arrow 1)-abeo-paclitaxels) have been prepared in order to determine whether analogues of this class might have improved bioactivity as compared with paclitaxel. Most of the compounds synthesized were less active than paclitaxel, but one analogue was equivalent to paclitaxel in a tubulin-assembly assay, and another analogue was more cytotoxic than paclitaxel in two different cell lines of the NCI screen.