反应详情

The starting material may be prepared as described in Example 1 starting from 4-amino-2-chloro-5-nitro-pyridine via 1-(4-fluorophenyl)-4-[4-(4-amino-5-nitro-pyridin-2-yl)-1-piperazinyl]-1-butanone to give 1-(4-fluorophenyl)-4-[4-(4,5-diamino-pyridin-2-yl)-1-piperazinyl]-1-butanone, m.p. 166°-169° (from ethyl acetate).

1. customThe starting material may be prepared