In vivo and in vitro o-methylation of 1-(3,4-dihydroxyphenyl)-2-(n-propyl-amino) propane - an intermediate in N-(N-propyl) amphetamine metabolism.

In vitro metabolism of 1-(3,4-dihydroxyphenyl)-2-(n-propylamino)-propane (Id) by rat liver cytosol in the presence of S-adenosyl-L-methyl-methionine produced almost quantitatively the corresponding 3-methoxy metabolite. 1-(4-Hydroxy-3-methoxyphenyl)-2-(n-propylamino) propane was also recovered from the urine of rats dosed with the catecholamine (Id).