反应详情

1-[4-(4-Methoxy-phenyl)-piperazin-1-yl]-2-[trans-4-(4-nitro-3-trifluoromethyl-phenylamino)-cyclohexyloxy]-ethanone was prepared using a two-step synthesis. In the first step, 1-chloracetyl-4-(4-methoxy-phenyl)-piperazine (also known as 2-chloro-1-[4-(4-methoxy-phenyl)-piperazin-1-yl)-ethanone) was prepared with a 78% yield from 1-(4-methoxy-phenyl)-piperazine and chloroacetyl chloride using the procedure illustrated in Example 4. In the second step, the 1-[4-(4-methoxy-phenyl)-piperazin-1-yl]-2-[trans-4-(4-nitro-3-trifluoromethyl-phenylamino)-cyclohexyloxy]-ethanone was prepared from the 1-chloracetyl-4-(4-methoxy-phenyl)-piperazine and trans-4-(4-nitro-3-trifluoromethyl-phenylamino)-cyclohexanol (prepared in accordance with Example 5) using the procedure illustrated in Example 11. This afforded the product as a yellow solid (24% yield). The structure was confirmed using Protocol II-A. Calculated mass=537; observed mass=537; HPLC retention time=4.05 min.

1. customa two-step synthesis