[F:1][C:2]1[C:10]([O:11][C:12]2[C:21]3[C:16](=[CH:17][C:18]([O:24][CH2:25][CH2:26][N:27]4[CH2:33][C:32](=[O:34])[C:29]5([CH2:31][CH2:30]5)[CH2:28]4)=[C:19]([O:22][CH3:23])[CH:20]=3)[N:15]=[CH:14][CH:13]=2)=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[C:5]([CH3:35])[NH:6]2.[BH4-].[Na+]>CO>[F:1][C:2]1[C:10]([O:11][C:12]2[C:21]3[C:16](=[CH:17][C:18]([O:24][CH2:25][CH2:26][N:27]4[CH2:33][CH:32]([OH:34])[C:29]5([CH2:31][CH2:30]5)[CH2:28]4)=[C:19]([O:22][CH3:23])[CH:20]=3)[N:15]=[CH:14][CH:13]=2)=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[C:5]([CH3:35])[NH:6]2The above product from Example 2 (75 mg) was dissolved into MeOH (8 ml) and stirred at RT. NaBH4 (75 mg) was added to the reaction and stirred at RT for 30 min. The reaction was evaporated and purified by column chromatography to give title compound (60 mg). Mass: (M+1), 478
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