Abstract: A fungicidally active compound of the formula: a) wherein Q is —NY—NH—, —N?N—, or X is oxygen, sulfur, sulfoxide, or sulfone; n is 0 or 1; Y is hydrogen, C1–C4 alkanoyl, C1–C4 haloalkanoyl, C1–C6 straight chain or branched alkoxycarbonyl, C1–C4 alkoxy(C1–C4)alkoxycarbonyl, C1–C4 alkyl, or C1–C4 haloalkyl; R1 is C1–C6 alkoxy, C3–C6 branched alkoxy, C3–C6 cycloalkoxy, phenoxy, benzyloxy, C2–C6 alkenyloxy, C2–C6 alkynyloxy, C1–C6 haloalkoxy, silyloxy, (C1–C6 alkoxy)-carbonylmethoxy, C1–C6 thioalkoxy, C1–C6 alkylamino, C1–C6 alkyl, C3–C6 branched alkyl, (C1–C6 alkoxy) C1–C6 alkoxy, or (C1–C6 alkoxy)carbonyl; R2 and R3 are each, independently, hydrogen, halogen, C1–C6 alkyl, C3–C6 branched alkyl, C1–C6 haloalkyl, C1–C6 alkoxy, C1–C6 haloalkoxy, cyano, or (C1–C6 alkoxy)carbonyl; R4 is C1–C6 alkyl; and Z1 and Z2 are each independently, carbon or nitrogen, with the proviso that when Z1 is carbon, X is oxygen, and R2 is hydrogen, then R3 cannot be hydrogen; b) wherein R5 is C1–C6 alkoxy; and R6 and

Abstract: A fungicidally active compound of the formula:

Abstract: Compounds of the formula ##STR1## wherein A and X are independently oxygen or sulphur;R.sup.6 is H, halogen, alkyl, alkoxy, alkylthio, cyano, or nitro;Y is --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 S--, or --CH.sub.2 SO.sub.2 --;Q is a substituted or unsubstituted phenyl or aromatic heterocyclic group:useful for the inhibition of the replication of HIV-1, in vitro and in vivo.

Abstract: R.sup.6 is H, halogen, alkyl, alkoxy, alkylthio, cyano, or nitro;R.sup.10 is phenylthio, dialkylamino, alkylthio, alkoxycarbonyl, N-morpholinyl, or N-piperidinyl;R.sup.11 is hydrogen or alkyl;Q is alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio, alkynylthio, alkoxycarbonyl, alkoxyiminomethyl, or Y--Ar;Y is --CH.sub.2 O--, --OCH.sub.2 --, --CH.sub.2 S--, or --CH.sub.2 SO.sub.2 --;Ar is a substituted or unsubstituted phenyl or aromatic heterocyclic group,useful for the inhibition of the replication of HIV-1, in vitro and in vivo.

Abstract: Compounds of the formula ##STR1## wherein Q is a hydrazone derivative;R.sup.1 is hydrogen, halogen, alkyl or alkoxy;R.sup.2 is hydrogen, halogen, alkyl, alkoxy, alkenoxy, alkynyloxy, halomethyl, trifluoromethoxy, alkylthio, nitro or cyano; andR.sup.6 is a substituted carboxamide, carbothioamide, phosphonosoamide, or phosphonothioamide,useful as anti-HIV agents.

Abstract: Compounds of the formula ##STR1## wherein X is O or S, useful for the inhibition of the replication of HIV-1 and reverse transcriptase mutants thereof, in vitro and in vivo.