主权项 |
1. A compound of a formula wherein n is an integer selected from 1-2; m is an integer selected from 1-3; each R is selected from halo, alkyl, haloalkyl, alkoxy, cyano, amino, N-alkylamino, N,N-dialkylamino, aminealkyl, N-substituted and oxa-substituted aminealkyl moieties; o is an integer selected from 0-3; and R′ is selected from halo, alkyl, haloalkyl and cyano moieties, or a salt thereof. |