[C:1]([O:5][C@@H:6]([C:12]1[C:27]([CH3:28])=[CH:26][C:15]2[N:16]=[C:17]([C:19]3[CH:24]=[CH:23][N:22]=[C:21](Cl)[CH:20]=3)[S:18][C:14]=2[C:13]=1[C:29]1[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][CH:30]=1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([CH3:4])([CH3:3])[CH3:2].[CH3:36][N:37]1[C:45]2[C:40](=[CH:41][CH:42]=[CH:43][CH:44]=2)[C:39]([Sn](C)(C)C)=[N:38]1>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[C:1]([O:5][C@@H:6]([C:12]1[C:27]([CH3:28])=[CH:26][C:15]2[N:16]=[C:17]([C:19]3[CH:24]=[CH:23][N:22]=[C:21]([C:39]4[C:40]5[C:45](=[CH:44][CH:43]=[CH:42][CH:41]=5)[N:37]([CH3:36])[N:38]=4)[CH:20]=3)[S:18][C:14]=2[C:13]=1[C:29]1[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][CH:30]=1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([CH3:3])([CH3:2])[CH3:4]To a solution of (S)-ethyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-chloropyridin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetate (35.0 mg, 0.066 mmol) and 1-methyl-3-(trimethylstannyl)-1H-indazole (24.0 mg, 0.079 mmol) in dioxane (0.9 mL) was added Pd(PPh3)4 (4.0 mg, 3.03×10−3 mmol) and CuI (4.0 mg, 0.018 mmol). The reaction was degassed for 5 minutes with N2 and then heated at 100° C. overnight. After cooling, the reaction mixture was diluted with EtOAc, extracted with H2O, brine, dried over Na2SO4, filtered and concentrated and purified by flash column chromatography (silica gel, 0 to 70% ethyl acetate/hexanes) to give the desired product. LCMS-ESI+ (m/z): [M+H]+ calcd for C35H34ClN4O3S: 625.2; found: 625.3.
Wird geladen…