N-tert-butyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-sulfonamide → 5-{3-[4-(5-Chloro-thiophen-2-yl)-6-trifluoromethyl-pyrimidin-2-yl]-phenyl}-thiophene-2-sulfonic acid tert-butylamide

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5-{3-[4-(5-Chloro-thiophen-2-yl)-6-trifluoromethyl-pyrimidin-2-yl]-phenyl}-thiophene-2-sulfonic acid tert-butylamide was prepared from 2-(3-bromo-phenyl)-4-(5-chloro-thiophen-2-yl)-6-trifluoromethyl-pyrimidine (example B.3) (0.31 g, 0.74 mmol) and N-tert-butyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-thiophene-2-sulfonamide (example C.1) (0.28 g, 0.81 mmol) according to the general procedure III. Obtained as light yellow oil (0.23 g), which was subsequently deprotected.

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