1-{3,5-Difluoro-4-[(phenyl methyl)oxy]phenyl}-4-[(phenylmethyl)oxy]-1H-indazole → 1-(3,5-Difluoro-4-hydroxyphenyl)-1H-indazol-4-ol

反応式

[F:1][C:2]1[CH:3]=[C:4]([N:17]2[C:25]3[C:20](=[C:21]([O:26]CC4C=CC=CC=4)[CH:22]=[CH:23][CH:24]=3)[CH:19]=[N:18]2)[CH:5]=[C:6]([F:16])[C:7]=1[O:8]CC1C=CC=CC=1>C(O)C.C(OCC)(=O)C.[Pd]>[F:1][C:2]1[CH:3]=[C:4]([N:17]2[C:25]3[CH:24]=[CH:23][CH:22]=[C:21]([OH:26])[C:20]=3[CH:19]=[N:18]2)[CH:5]=[C:6]([F:16])[C:7]=1[OH:8]

参加物

実験手順

A solution of 1-{3,5-difluoro-4-[(phenylmethyl)oxy]phenyl}-4-[(phenylmethyl)oxy]-1H-indazole (D35) (257 mg, 0.58 mmol) in ethanol (10 mL) and ethyl acetate (10 mL) was hydrogenated in an H-cube over a 10% palladium on charcoal catalyst. The resulting solution was concentrated and then the crude product purified by silica gel chromatography eluting with 5-100% ethyl acetate in hexane to yield the title compound (E19) (126 mg).