tert-Butyl isocyanate → 1-[2-Amino-6-(2,6-dibromophenyl)pyrido[2,3-d]pyrimidin-7-yl]-3-tert-butylurea

Participants

Reaction Steps

The title compound was prepared from 0.25 g of 6-(2,6-dibromo-phenyl)-pyrido[2,3-d]pyrimidine-2,7-diamine from Example 60 and 0.077 mL of tert-butyl isocyanate according to Example 2. The product was purified by MPLC eluting with a gradient of CHCl3 :EtOAc (1:1) to EtOAc to afford the pure product; mp >300° C. (dec).

Provenance & Evidence