4-Methylmorpholine → HCID 140381235, compound

Participants

Reaction Conditions

Reaction Steps

N,N-Dimethylformamide (14 ml) and N-methylmorpholine (0.57 ml, 5.20 mmol) were added to ethyl 3-(4-aminopiperidino)propionate dihydrochloride (567 mg, 2.08 mmol) and the mixture was stirred at 60° C. for 20 minutes under a nitrogen atmosphere. This solution was added to a mixture of 5-(methoxycarbonylamidino)-2-benzofurancarboxylate acid (364 mg, 1.39 mmol), 1-hydroxy-1H-benzotriazole (207 mg, 1.54 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide (294 mg, 1.54 mmol) added to N,N-dimethylformamide (15 ml). The mixture was stirred at room temperature for 18 hours. Water (100 ml) was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. After filtration, low boiling matters were distilled away from the filtrate under reduced pressure. The residue was purified by column chromatography (chloroform/methanol=10/1) to give 338 mg of compound (187) as a yellow solid (55%).

Provenance & Evidence