Aminoethyl 3-chlorobenzyl ether (3), synthesized by the reaction of 3-
chlorobenzyl bromide with aminoethanol and NaH, was shown to be a time
-dependent reversible inactivator of both monoamine oxidase A and B. T
he selectivity for inactivation of monoamine oxidase B, as measured by
(k(inact)/K-I)(B)l(k(inact)/K-I)(A), is 1700.