[F:1][C:2]1[CH:3]=[C:4]([N:16]2[C:24]3[C:19](=[C:20]([OH:27])[CH:21]=[C:22]([C:25]#[N:26])[CH:23]=3)[CH:18]=[N:17]2)[CH:5]=[CH:6][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:16]2[C:24]3[C:19](=[C:20]([OH:27])[CH:21]=[C:22]([C:25]#[N:26])[CH:23]=3)[CH:18]=[N:17]2)[CH:5]=[CH:6][C:7]=1[OH:8]A solution of 1-{3-fluoro-4-[(phenylmethyl)oxy]phenyl}-4-hydroxy-1H-indazole-6-carbonitrile (D6) (308 mg, 0.86 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, dissolved in ethanol then the product purified by silica gel chromatography eluting with 10-100% ethyl acetate in hexane to yield the title compound (E3) (98 mg).
Wird geladen…