3-Methanesulfonyl-5-(trifluoromethyl)benzoic acid → [[4-(2-Chloro-phenyl)-pyridin-3-yl]-(3-methanesulfonyl-5-trifluoromethyl-benzoyl)-amino]-acetic acid methyl ester

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The title compound was prepared in analogy to example 90, from [4-(2-chloro-phenyl)-pyridin-3-ylamino]-acetic acid methyl ester and 3-(methylsulfonyl)-5-(trifluoromethyl)benzoic acid (example 114, intermediate a) after a reaction time of 6 hours at room temperature. The compound was purified by silica gel chromatography on a 20 g column using an MPLC (Flashmaster) system eluting with a gradient of n-heptane:EtOAc (100:0 to 0:100). Light red foam (25%). MS (ESI): m/z=527.066 [M+H]+.

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