| abstract |
derivs. (I), their N-oxides & acid addn. & quat. salts, & pharmaceutical compns. Ph = 1,2-phenylene, opt. substd. R1, 4 = H2, (aliphatic)2, or 1 H & 1 aliphatic, araliphatic, aromatic, aromatic heterocyclic or aromatic heterocyclic-aliphatic residue R2 = H, OH, SH, amino or substd, amino, or an aliphatic, araliphatic, aromatic, aromatic heterocyclic or aromatic heterocyclic-aliphatic residue R3 = H, or aliphatic, araliphatic, aromatic, aromatic heterocyclic or aromatic heterocyclic-aliphatic residue, or carboxylic acyl. |