Trifluoroacetic acid → Ds-1971

Participants

Reaction Steps

The reaction and aftertreatment were conducted in the same manner as in Example 1b by using the 5-chloro-N-(2,4-dimethoxybenzyl)-2-fluoro-4-{[(1S*,2R*)-2-(1-methyl-1H-pyrazol-5-yl)cyclohexyl]oxy}-N-(pyrimidin-4-yl)benzenesulfonamide (0.27 g, 0.438 mmol) prepared in Example 48a, triethylsilane (0.168 mL, 1.05 mmol), trifluoroacetic acid (3.4 mL) and dichloromethane (3.4 mL), to yield the title compound (0.148 g, 72%) as a colorless solid.

Provenance & Evidence