Dichloroacetic Acid → 3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-N-(2-hydroxy-ethoxy)-5-(isopropoxyamino-methyl)-benzamide
反応式
[F:1][C:2]1[C:3]([NH:22][C:23]2[CH:28]=[CH:27][C:26]([I:29])=[CH:25][C:24]=2[F:30])=[C:4]([CH:12]=[C:13](/[CH:16]=[N:17]/[O:18][CH:19]([CH3:21])[CH3:20])[C:14]=1[F:15])[C:5]([NH:7][O:8][CH2:9][CH2:10][OH:11])=[O:6].ClC(Cl)C(O)=O>>[F:1][C:2]1[C:3]([NH:22][C:23]2[CH:28]=[CH:27][C:26]([I:29])=[CH:25][C:24]=2[F:30])=[C:4]([CH:12]=[C:13]([CH2:16][NH:17][O:18][CH:19]([CH3:21])[CH3:20])[C:14]=1[F:15])[C:5]([NH:7][O:8][CH2:9][CH2:10][OH:11])=[O:6]参加物
3
実験手順
The title compound was obtained by a procedure similar to that in Step C of Example 9. Namely, (E)-3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-N-(2-hydroxy-ethoxy)-5-(isopropoxyimino-m ethyl)-benzamide was reduced with borane-pyridine complex in the presence of dichloroacetic acid to give 3,4-difluoro-2-(2-fluoro-4-iodo-phenylamino)-N-(2-hydroxy-ethoxy)-5-(isopropoxyamino-methyl)-benzamide (65.0 mg, 89% in 2 steps).