Dimethylformamide → 5-[5-Fluoro-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid ((S)-2-oxo-pyrrolidin-3-yl)-amide

反応式

N1C2C(=NC=CC=2)N([N:10]2[C:14](/[CH:15]=[C:16]3\[C:17](=[O:26])[NH:18][C:19]4[C:24]\3=[CH:23][C:22]([F:25])=[CH:21][CH:20]=4)=[C:13]([CH3:27])[C:12]([C:28]([O-:30])=O)=[C:11]2[CH3:31])N=1.[CH3:32][CH2:33][N:34](C(C)C)C(C)C.[CH3:41][N:42]([CH:44]=[O:45])C>>[O:45]=[C:44]1[C@@H:33]([NH:34][C:28]([C:12]2[C:13]([CH3:27])=[C:14](/[CH:15]=[C:16]3\[C:17](=[O:26])[NH:18][C:19]4[C:24]\3=[CH:23][C:22]([F:25])=[CH:21][CH:20]=4)[NH:10][C:11]=2[CH3:31])=[O:30])[CH2:32][CH2:41][NH:42]1

参加物

反応物 3

HCID 6228Dimethylformamide

HCID 81531Diisopropylethylamine

HCID 131727992(Z)-3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl-5-((5-fluoro-2-oxoindolin-3-ylidene)methyl)-2,4-dimethyl-1H-pyrrole-3-carboxylate

生成物 1

HCID 592159295-[5-Fluoro-2-oxo-1,2-dihydro-indol-(3Z)-ylidenemethyl]-2,4-dimethyl-1H-pyrrole-3-carboxylic acid ((S)-2-oxo-pyrrolidin-3-yl)-amide収率 27%

実験手順

To the solution of A4 (334 mg, 0.8 mmol) and DIEA (1 mL) in 20 mL of DMF was added 25b (120 mg, 1.28 mmol). The reaction mixture was stirred at room temperature for several hours. LC/MS was applied to determine completion of the reaction. DMF was evaporated under reduced pressure and the residue was precipitated with 5% diethylamine/methanol (10 mL). The precipitate was collected by filtration, washed with ethanol and dried in vacuum to give title compound as an orange solid (83 mg, 27% yield). 1H NMR (300 MHz, DMSO-d6): δ=13.68 (s, 1H), 10.89 (s, 1H), 7.71-7.82 (m, 4H), 6.82-6.96 (m, 2H), 4.47-4.56 (q, 1H), 3.18-3.25 (m, 2H), 2.42-2.45 (ds, 6H), 2.27-2.39 (m, 1H), 1.92-2.00 (q, 1H). LC/MS: 383.0 [M+H]+.