Diisopropylethylamine → (R)-4-(7-chloro-5-trifluoromethyl-thiazolo[4,5-d]pyrimidin-2-yl)-1-(4-cyclopropyl-benzenesulfonyl)-piperazine-2-carboxylic acid 4-trifluoromethoxy-benzylamide

Participants

Reaction Steps

To a mixed solution of the compound (27 mg) obtained in Example 1001, Step 8, the compound (43 mg) obtained in Step 4 and chloroform (0.50 ml) was added N,N-diisopropylethylamine (19 μl) under ice-cooling. After stirring overnight at room temperature, the reaction mixture was purified by silica gel column chromatography (chloroform:methanol=20:1) to give the title compound (66 mg).

Provenance & Evidence