Amantadine → [(Adamantylcarbamoyl)methyl]phosphonic acid

Participants

Reaction Steps

Adamantylamine (0.045 mole) and dimethyl (carboxymethyl)phosphonate (0.04 mole) were dissolved in 100 ml. of methylene chloride. As the solution was stirred, dicyclohexylcarbodiimide was added portionwise. The solution was stirred overnight, and the mixture filtered. The filtrate was concentrated to a solid. It was recrystallized from an appropriate solvent such as methanol. m.p. 190°-4° C.; yield, 32%

Provenance & Evidence