HIV replication inhibitors of formula a N-oxide, a pharmaceutically acceptable addition salt, a quaternary amine or a stereochemically isomeric form thereof, wherein A is —CH2—CH2—, —CH═CH—, —C≡C—; R1 is hydrogen, aryl, formyl, C1-6alkylcarbonyl, C1-6alkyl, C1-6alkyloxycarbonyl, R2 hydroxy, halo, C1-6alkyl, carboxyl, cyano, —C(═O)R6, nitro, amino, mono- or di(C1-6alkyl)amino, polyhalomethyl; X1 is —NR1—, —O—, —S—, —S(═O)p—; R3 is H, C1-6alkyl, halo; R4 is H, C1-6alkyl, halo; R5 is nitro, amino, mono- and diC1-4alkylamino, aryl, halo, —CHO, —CO—R6, —COOR7, —NH—C(═O)H, —NH—C(═O)R6, —CH═N—O—R8; R6 is C1-4alkyl, amino, mono- or di(C1-4alkyl)amino or polyhaloC1-4alkyl; R7 is hydrogen, C1-6alkyl, arylC1-6alkyl; R8 is hydrogen, C1-6alkyl, aryl; p is 1 or 2; aryl is optionally substituted phenyl; pharmaceutical compositions containing these compounds as active ingredient and processes for preparing said compounds and compositions.