[Si:1]([O:8][C:9]1[CH:16]=[CH:15][CH:14]=[CH:13][C:10]=1[CH:11]=[O:12])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[BH4-].[Na+]>CO>[Si:1]([O:8][C:9]1[CH:16]=[CH:15][CH:14]=[CH:13][C:10]=1[CH2:11][OH:12])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]A solution of 28 (200 mg) in methanol (5.5 ml) containing NaBH4 (28 mg) is stirred for 1 hour at room temperature. 29 (140 mg, 68%) is obtained after hydrolysis and customary extraction.
読み込み中…