E. Didier et al., 2-MONOSUBSTITUTED-1,3-OXAZOLIDINES AS IMPROVED PROTECTIVE GROUPS OF N-BOC-PHENYLISOSERINE IN DOCETAXEL PREPARATION, Tetrahedron letters, 35(15), 1994, pp. 2349-2352
A new route for semisynthetic docetaxel, 1, is described using osubsti
tuted-4-phenyl-1,3-oxazolidine-5-carboxylic acids in esterification of
7,10-O-diTroc-10-desacetylbaccatin III (4). Subsequent deprotection o
f esters 10(+10') afforded title compound 1 without removal of the Boc
group.