反应详情

To a mixture of 20 mg of 3-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-pyrazine-2-carboxylic acid, 10 mg of morpholine and 20 μl of DIEA in 1.5 mL of CH2Cl2 was added 32 μL of 1-propanephosphonic acid cyclic anhydride (50% in ethyl acetate). After 3-4 hours the reaction mixture was directly purified via flash column (65% ethyl acetate in hexane) to afford 14 mg of 4-chloro-N-[3-(morpholine-4-carbonyl)-pyrazin-2-yl]-3-trifluoromethyl-benzenesulfonamide as a white powder. MS: (M+H)/z=451.0.

1. customAfter 3-4 hours the reaction mixture was directly purified via flash column (65% ethyl acetate in hexane)