1-[4-(Trifluoromethyl)-1,3-thiazol-2-yl]piperazine → (2-Cyclopentyloxy-5-methanesulfonyl-phenyl)-[4-(4-trifluoromethyl-thiazol-2-yl)-piperazin-1-yl]-methanone

Participants

Reaction Steps

Prepared in analogy to example 1 (b) from 2-cyclopentyloxy-5-methanesulfonyl-benzoic acid (Example A4) and 1-(4-trifluoromethyl-thiazol-2-yl)-piperazine (Example 49(a)). The crude material was purified by chromatography (SiO2, ethyl acetate/heptane) followed by trituration in pentane to yield the title compound as a crystalline white solid (yield 71%). MS (m/e): 504.0 (M+H+, 100%).

Provenance & Evidence