反应详情

A solution of (Z)-5,6-dihydro-5-oxo-4-[(1H-pyrrol-2-yl)methylene]-4H-thieno[2,3-b]pyrrole-2-carboxylic acid (30 mg, 0.12 mmol), 1-hydroxy-benzotriazole (18 mg, 0.13 mmol), propylamine (11 μl, 0.13 mmol), 1-(3-dimethoxyaminopropyl)-3-ethylcarbodiimide hydrochloride (25 mg, 0.13 mmol) and diisopropylethylamine (23 μl, 0.13 mmol) in dimethylformamide (1 ml) was stirred at room temperature for 3 hours then diluted with ethyl acetate and washed with 2M hydrochloric acid, saturated sodium bicarbonate and water. The resulting solution was dried over magnesium sulfate and evaporated to dryness. The residue was triturated with water/isopropyl alcohol to give 14 mg of (Z)-5,6-dihydro-5-oxo-N-propyl-4-[(1H-pyrrol-2-yl)methylene]-4H-thieno[2,3-b]pyrrole-2-carboxamide as an orange solid. MS(ES): m/e 302 [M+H].

1. washwashed with 2M hydrochloric acid, saturated sodium bicarbonate and water
2. dry with materialThe resulting solution was dried over magnesium sulfate
3. customevaporated to dryness
4. customThe residue was triturated with water/isopropyl alcohol