Chemical Synthesis and Biological Evaluation of C-2 Taxoids
摘要:
An efficient, general method for the synthesis of 1,2-hydroxy esters by regioselective nucleophilic opening of 1,2-cyclic carbonate systems has been developed. A reliable and practical route giving access to the taxoid carbonate 2 from the readily available 10-deacetylbaccatin III (13) has been established. Nucleophilic opening of the carbonate 2 with a variety of nucleophiles provided a number of novel C-2 Taxols. Water-soluble taxoid onium salts (e.g., 31e, 31n, 32, and 34b) were also synthesized and studied. A selected number of taxoids were subjected to cytotoxicity and tubulin polymerization assays as well as in vivo studies. The results of these studies are reported herein.
Chemical Synthesis and Biological Evaluation of C-2 Taxoids
摘要:
An efficient, general method for the synthesis of 1,2-hydroxy esters by regioselective nucleophilic opening of 1,2-cyclic carbonate systems has been developed. A reliable and practical route giving access to the taxoid carbonate 2 from the readily available 10-deacetylbaccatin III (13) has been established. Nucleophilic opening of the carbonate 2 with a variety of nucleophiles provided a number of novel C-2 Taxols. Water-soluble taxoid onium salts (e.g., 31e, 31n, 32, and 34b) were also synthesized and studied. A selected number of taxoids were subjected to cytotoxicity and tubulin polymerization assays as well as in vivo studies. The results of these studies are reported herein.