反应详情

A solution of methyl 3-chloro-5-(chlorocarbonyl)-1H-pyrrole-2-carboxylate (0.100 g, 0.387 mmol) in 4 mL of DCM was treated with [2-(1-pyrrolidinyl)ethyl]amine (0.110 g, 0.967 mmol). After 1 hour saturated NaHCO3 was added and the mixture shaken. The DCM layer was separated, dried over MgSO4 and evaporated onto silica gel. Purification was accomplished on silica with 0 to 10% MeOH in EtOAc to afford the title compound (0.080 g, 69%) as a white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 8.38 (t, 1H), 6.80 (d, 1H), 3.78 (s, 3H), 3.32 (q, 2H), 2.52 (t, 2H), 2.45 (br. s., 4H), 1.65 (br. s., 4H). LCMS: m/z 298.2 (M−1).

1. customThe DCM layer was separated
2. dry with materialdried over MgSO4
3. customevaporated onto silica gel
4. customPurification