1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 57308419, compound

Participants

Reaction Steps

To a solution of (3S)-3-[(2S)-5-benzyloxycarbonyl-2-aminopentanoyl]oxyhexadecanamide hydrochloride (1.79 g), 3-quinolinecarboxylic acid (630 mg) and 1-hydroxybenzotriazole (536 mg) in N,N-dimethylformamide (40 ml) was added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (616 mg) at 0° C., and the mixture was stirred at room temperature for 2 hours. The solution was diluted with ethyl acetate (200 ml) and washed with 0.5N hydrochloric acid (200 ml), 10% aqueous citric acid (200 ml), saturated aqueous sodium bicarbonate (200 ml) and brine, successively. The organic layer was dried over magnesium sulfate and evaporated in vacuo to give (3S)-3-[(2S)-5-benzyloxycarbonyl-2-{(3-quinolyl)carbonylamino}pentanoyl]oxyhexadecanamide (2.16 g).

Provenance & Evidence