1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → HCID 22261815, compound

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Reaction Steps

While stirring methyl 4-[(1RS,2SR)-2-amino-1-hydroxy-3-[3-(1,1,2,2-tetrafluoroethoxy)phenyl]propyl]benzoate (10.80 g, 26.91 mmol), 6,7-dihydro-5H-benzo[a]cycloheptene-1-carboxylic acid (5.06 g, 26.9 mmol) and 1-hydroxybenzotriazole hydrate (4.12 g, 26.9 mmol) in acetonitrile (10 ml), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (5.16 g, 26.9 mmol) was added and the mixture was stirred overnight at room temperature. The reaction solution was diluted with ethyl acetate, washed with aqueous sodium hydrogen carbonate solution, dried over anhydrous magnesium sulfate and passed through silica gel. The solvent was evaporated under reduced pressure and the obtained residue was crystallized from diisopropyl ether to give the objective substance.

Provenance & Evidence