Sodium borohydride → (S)-6-tert-Butyl-2-(3-(5-(5-(2-ethyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-yl-amino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-5-fluoro-2-(hydroxymethyl)phenyl)-8-fluorophthalazin-1(2H)-one

Reaction equation

[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[C:13]([F:15])[CH:14]=1)[C:11](=[O:16])[N:10]([C:17]1[CH:24]=[C:23]([F:25])[CH:22]=[C:21]([C:26]3[CH:31]=[C:30]([NH:32][C:33]4[CH:38]=[CH:37][C:36]([N:39]5[CH2:44][CH2:43][N:42]([CH:45]6[CH2:48][O:47][CH2:46]6)[CH2:41][C@@H:40]5[CH2:49][CH3:50])=[CH:35][N:34]=4)[C:29](=[O:51])[N:28]([CH3:52])[CH:27]=3)[C:18]=1[CH:19]=[O:20])[N:9]=[CH:8]2)([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+]>CO>[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[C:13]([F:15])[CH:14]=1)[C:11](=[O:16])[N:10]([C:17]1[CH:24]=[C:23]([F:25])[CH:22]=[C:21]([C:26]3[CH:31]=[C:30]([NH:32][C:33]4[CH:38]=[CH:37][C:36]([N:39]5[CH2:44][CH2:43][N:42]([CH:45]6[CH2:46][O:47][CH2:48]6)[CH2:41][C@@H:40]5[CH2:49][CH3:50])=[CH:35][N:34]=4)[C:29](=[O:51])[N:28]([CH3:52])[CH:27]=3)[C:18]=1[CH2:19][OH:20])[N:9]=[CH:8]2)([CH3:2])([CH3:3])[CH3:4]