反应详情

4-(4-{2-[Trans-4-(4-nitro-3-trifluoromethyl-phenylamino)-cyclohexyloxy]-acetyl}-piperazin-1-yl)-benzonitrile was prepared using a two-step synthesis. In the first step, 1-chloracetyl-4-(4-benzonitrile)-piperazine (also known as 4-[4-(2-chloroacetyl)-piperazin-1-yl]-benzonitrile) was prepared from 4-(piperazin-1-yl)-benzonitrile and chloroacetyl chloride using the procedure illustrated in Example 4. In the second step, the 4-(4-{2-[trans-4-(4-nitro-3-trifluoromethyl-phenylamino)-cyclohexyloxy]-acetyl]-piperazin-1-yl)-benzonitrile was prepared from the 1-chloracetyl-4-(4-benzonitrile)-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 (39% yield). The structure was confirmed using Protocol II-A. Calculated mass=532; observed mass=532; HPLC retention time=4.14 min.

1. custom4-(4-{2-[Trans-4-(4-nitro-3-trifluoromethyl-phenylamino)-cyclohexyloxy]-acetyl}-piperazin-1-yl)-benzonitrile was prepared
2. customa two-step synthesis