Hydrochloric Acid → HCID 22867054, compound

Participants

Reaction Steps

2-Aminomethyl-5-methyl-2,3,6,7-tetrahydrofuro-[2,3-f]quinoline-7-one (2.3 g, 10 mmol) was dissolved in dimethylformamide (100 ml) while cooled on ice. To the obtained mixture, carbobenzyloxy-L-alanine (2.3 g, 10.5 mmol), a hydrochloric acid salt of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (hereinafter referred to as WSC.HCl) (2.3 g, 11.0 mmol), and 1-hydroxybenzotriazol (hereinafter referred to as HOBT) (1.4 g, 11.0 mmol) were added, and the resultant mixture was stirred at room temperature overnight. The reaction mixture was condensed under reduced pressure. The obtained residue was extracted with chloroform, washed with 1N-HCl and saturated aqueous NaCl solution, and dried. The solvent was evaporated. The residue was purified by silica gel column chromatography (chloroform: methanol =20:1) to obtain 3.3 g of the title compound as colorless powdery crystals (76.0%)

Provenance & Evidence