Br[C:2]1[N:6]2[N:7]=[CH:8][CH:9]=[C:10]([N:11]3[CH2:16][CH2:15][O:14][CH2:13][CH2:12]3)[C:5]2=[N:4][C:3]=1[CH2:17][CH2:18][C:19]1[CH:28]=[CH:27][C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[N:20]=1.CC1(C)C(C)(C)OB([C:37]2[CH:38]=[CH:39][C:40]([C:43]#[N:44])=[N:41][CH:42]=2)O1>>[O:14]1[CH2:15][CH2:16][N:11]([C:10]2[C:5]3[N:6]([C:2]([C:37]4[CH:38]=[CH:39][C:40]([C:43]#[N:44])=[N:41][CH:42]=4)=[C:3]([CH2:17][CH2:18][C:19]4[CH:28]=[CH:27][C:26]5[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=5)[N:20]=4)[N:4]=3)[N:7]=[CH:8][CH:9]=2)[CH2:12][CH2:13]1Compound 46a (0.5 g, 1.1 mmol) was subjected to Suzuki coupling conditions with 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinonitrile as described in Example 38, Step A, to obtain compound 46b as a yellow solid. Mass Spectrum (LCMS, ESI pos.): Calcd. for C27H23N7O: 462.2 (M+H). Found: 462.2.
Wird geladen…