Water → 1-[5-(Difluoromethyl)pyridin-2-yl]-1H-pyrrole-3-carboxylic acid

反応式

FC(F)(F)C(O)=O.C([O:12][C:13]([C:15]1[CH:19]=[CH:18][N:17]([C:20]2[CH:25]=[CH:24][C:23]([CH:26]([F:28])[F:27])=[CH:22][N:21]=2)[CH:16]=1)=[O:14])(C)(C)C.O>O1CCCC1>[F:28][CH:26]([F:27])[C:23]1[CH:24]=[CH:25][C:20]([N:17]2[CH:18]=[CH:19][C:15]([C:13]([OH:14])=[O:12])=[CH:16]2)=[N:21][CH:22]=1

参加物

実験手順

Trifluoroacetic acid (13.6 ml) was added at room temperature to a solution of 1-[5-(difluoromethyl)pyridin-2-yl]-1H-pyrrole-3-carboxylic acid tert-butyl ester (1.01 g) in tetrahydrofuran (3.4 ml) and stirred at the same temperature for an hour. After completion of the reaction, water was added to the reaction solution and the precipitated solid was collected by filtration to give the titled compound (790 mg) as a white solid.