Sh. Chen et al., SYNTHESIS AND BIOLOGICAL EVALUATION OF C-13 AMIDE-LINKED PACLITAXEL (TAXOL) ANALOGS, Journal of organic chemistry, 61(6), 1996, pp. 2065-2070
Several C-13 amidopaclitaxel analogs have been synthesized during the
course of our structure-activity relationship study at the C-13 positi
on. These include 4-deacetyl-13-amidopaclitaxel (4), 13-amidopaclitaxe
l 4-(methyl carbonate) derivatives (5a,b), and 13-amidopaclitaxel (6).
None of these novel C-13 amidopaclitaxel analogs retain any activity
in the tubulin polymerization assay or the in vitro cytotoxicity assay
.