444667-48-5Relevant articles and documents
A higher yielding synthesis of the clinical prodrug ZD2767P using di-protected 4-[N,N-bis(2-hydroxyethyl)amino]phenyl chloroformate
Niculescu-Duvaz, Dan,Scanlon, Ian,Niculescu-Duvaz, Ion,Springer, Caroline J.
, p. 6919 - 6922 (2005)
A novel synthesis is described of the prodrug ZD2767P (in Phase I/II clinical trials) that improves the overall yield from 13% to 45%. The method involves the synthesis of 4-[N,N-bis(2-hydroxyethyl)amino]phenyl chloroformate protected as the bis-silyl ether, coupled with di-tert-butyl glutamate. There are clear advantages of this method compared to the literature procedure.