Pyridine → 6-Amidino-2-naphthyl 4-benzyloxycarbonylaminomethylbenzoate

Participants

Reaction Steps

To 50 ml of dried pyridine, were added 5.1 g of 4-benzyloxycarbonylaminomethylbenzoic acid and 4.4 g of DCC. The mixture was stirred under cooling in ice for 30 minutes, admixed with 5.0 g of 6-amidino-2-naphthol methanesulfonate and stirred for one hour under cooling in ice, then overnight at room temperature. The reaction mixture was filtered* and the filtrate was mixed with ethyl ether. The precipitate which was formed was collected by filtration and recrystallized from a DMF-ethanol mixture to obtain 3.8 g of a white powder of a white powder of 6-amidino-2-naphthyl 4-benzyloxycarbonylaminomethylbenzoate methanesulfonate.

Provenance & Evidence