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

Participants

Reaction Steps

To the solution of (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 (A4) (0.2 g, 0.48 mmol) in 25 mL of DMF solution was added compound 7b (0.13 g, 0.58 mmol), the reaction mixture was stirred at room temperature for several hours. LC/MS detection was applied to determine completion of the reaction. DMF was evaporated under reduced pressure and the residue was precipitated with 5% diethylamine/methanol (25 mL) under sonication. The solid was collected by filtration and washed with methanol (5 mL*2), dried under vacuum to provide the title compound (50 mg, 26% yield) as orange solid. 1H NMR (300 MHz, DMSO-d6): δ=13.68 (s, 1H), 10.89 (s, 1H), 7.70-7.78 (m, 3H), 6.82-6.93 (m, 2H), 4.21-4.28 (m, 1H), 2.41-2.49 (m, 8H), 2.28-2.31 (m, 2H), 2.07-2.13 (m, 2H), 1.76-1.80 (m, 2H). LC/MS: 394.3 [M−H]+.

Provenance & Evidence