Sodium borohydride → 2-Butyl-4-(1-hydroxy-2,2-dimethyl propyl)-1-{4-[2-(trityltetrazol-5-yl)-phenyl]phenyl}methylimidazole-5-carbonitrile
Reaktionsgleichung
[CH2:1]([C:5]1[N:6]([CH2:18][C:19]2[CH:24]=[CH:23][C:22]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=3[C:31]3[N:35]([C:36]([C:49]4[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=4)([C:43]4[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=4)[C:37]4[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=4)[N:34]=[N:33][N:32]=3)=[CH:21][CH:20]=2)[C:7]([C:16]#[N:17])=[C:8]([C:10](=[O:15])[C:11]([CH3:14])([CH3:13])[CH3:12])[N:9]=1)[CH2:2][CH2:3][CH3:4].[BH4-].[Na+]>>[CH2:1]([C:5]1[N:6]([CH2:18][C:19]2[CH:24]=[CH:23][C:22]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=3[C:31]3[N:35]([C:36]([C:37]4[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=4)([C:49]4[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=4)[C:43]4[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=4)[N:34]=[N:33][N:32]=3)=[CH:21][CH:20]=2)[C:7]([C:16]#[N:17])=[C:8]([CH:10]([OH:15])[C:11]([CH3:13])([CH3:14])[CH3:12])[N:9]=1)[CH2:2][CH2:3][CH3:4]Komponenten
3
Versuchsvorschrift
Following a procedure similar to that described in Example 74(b), but using 4.03 g of 2-butyl-4-pivaloyl-1-{4-[2-(trityltetrazol-5-yl)phenyl]phenyl}methylimidazole-5-carbonitrile [prepared as described in step (a) above] and 0.22 g of sodium borohydride, 3.79 g of the title compound was obtained as crystals, melting at 134°-135° C.