1-(5-Trifluoromethyl-thiazol-2-yl)-piperazine hydrochloride → [5-Methanesulfonyl-2-(2,2,2-trifluoro-1-methyl-ethoxy)-phenyl]-[4-(5-trifluoromethyl-thiazol-2-yl)-piperazin-1-yl]-methanone

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Reaction Steps

Prepared in analogy to example 1 (b) from 5-methanesulfonyl-2-(2,2,2-trifluoro-1-methyl-ethoxy)-benzoic acid (Example A2) and 1-(5-trifluoromethyl-thiazol-2-yl)-piperazine hydrochloride (Example 58(c)). The crude material was purified by chromatography (SiO2, ethyl acetate/heptane) followed by trituration in pentane to yield the title compound as an off-white crystalline solid (yield 64%). MS (m/e): 532.0 (M+H+, 100%).

Provenance & Evidence