[[4 -[4-(4-phenyl-1-piperazinyl)phenoxymethyl]-1,3-dioxolan-2-yl]-methyl]-1H- imidazoles and 1H-1,2,4-triazoles having antimicrobial properties

A composition for combatting microorganisms comprising an inert carrier material and as an active ingredient an antimicrobially effective amount of a compound having the formula ##STR54## a pharmaceutically acceptable acid-addition salt or a stereochemically isomeric forms thereof, wherein

• Q is --N.dbd. or --CH.dbd.;
• Ar is phenyl or substituted phenyl, said substituted phenyl having from 1 to 3 substituents each independently selected from the group consisting of halo, lower alkyl, lower alkyloxy, nitro, amino and trifluoromethyl provided that no more than two of such substituents are nitro, halo, or t-butyl;
• R is hydrogen or lower alkyl;
• and
• Y is a radical having the formula ##STR55## or a radical having the formula ##STR56## wherein Z is O or NR.sup.1 ;
• said R.sup.1 being hydrogen;
• lower alkenyl;
• lower alkynyl;
• Ar;
• cycloalkyl;
• lower alkyl optionally substituted with a member selected from the group consisting of Ar, lower alkyloxy and cycloalkyl;
• pyrimidine;
• optionally substituted with up to two substituents selected from the group consisting of lower alkyl, amino, nitro, hydroxy, lower alkyloxy, lower alkylthio, halo, phenyl, carboxyl and lower alkyloxycarbonyl;
• X is O, S or NR.sup.2 ;
• said R.sup.2 being hydrogen or lower alkyl;
• A is >C.dbd.O, NR.sup.3 or methylene, optionally substituted with up to two radicals selected from the group consisting of lower alkyl and Ar;
• said R.sup.3 being hydrogen or lower alkyl, or R.sup.1 and R.sup.3, taken together, form a lower alkanediyl radical;
• provided that, when A is NR.sup.3, Z is other than oxygen;
• and
• B is >C.dbd.O or methylene optionally substituted with up to two radicals selected from the group consisting of lower alkyl and lower alkyloxy;
• or A and B, taken together, form a bivalent radical of formula:
• ##STR57## wherein R.sup.4 is hydrogen or lower alkyl;
• or where Y is a radical of formula (b), A and B, when taken together, can also form a bivalent radical of formula
• --CH.dbd.CH-- (f)
• or
• --N.dbd.CH-- (g);
• wherein one hydrogen in the said radical (g) and up to two hydrogens in the said radicals (c), (d) or (f) may be replaced by a lower alkyl radical;
• provided than when --A--B-- is a radical of formula (g), said radical is connected to Z by its nitrogen atom and said Z is other than O.

A method of inhibiting and/or eliminating the development of fungi and bacteria in warm-blooded animals suffering from diseases caused by these fungi and/or bacteria by the systemic or topical administration of an antimicrobially effective amount of a compound having the formula ##STR58## a pharmaceutically acceptable acid-addition salt or a stereochemically isomeric forms thereof, wherein

• Q is --N.dbd. or --CH.dbd.;
• Ar is phenyl or substituted phenyl, said substituted phenyl having from 1 to 3 substituents each independently selected from the group consisting of halo, lower alkyl, lower alkyloxy, nitro, amino and trifluoromethyl provided that no more than two of such substituents are nitro, halo, or t-butyl;
• R is hydrogen or lower alkyl;
• and
• Y is a radical having the formula ##STR59## or a radical having the formula ##STR60## wherein Z is O or NR.sup.1 ;
• said R.sup.1 being hydrogen;
• lower alkenyl;
• lower alkynyl;
• Ar;
• cycloalkyl;
• lower alkyl optionally substituted with a member selected from the group consisting of Ar, lower alkyloxy and cycloalkyl;
• pyrimidine, optionally substituted with up to two substituents selected from the group consisting of lower alkyl, amino, nitro, hydroxy, lower alkyloxy, lower alkylthio, halo, phenyl, carboxyl and lower alkyloxycarbonyl;
• X is O, S or NR.sup.2 ;
• said R.sup.2 being hydrogen or lower alkyl;
• A is >C.dbd.O, NR.sup.3 or methylene, optionally substituted with up to two radicals selected from the group consisting of lower alkyl and Ar;
• said R.sup.3 being hydrogen or lower alkyl, or R.sup.1 and R.sup.3, taken together, form a lower alkanediyl radical;
• provided that, when A is NR.sup.3, Z is other than oxygen;
• and
• B is >C.dbd.O or methylene optionally substituted with up to two radicals selected from the group consisting of lower alkyl and lower alkyloxy;
• or A and B, taken together, form a bivalent radical of formula:
• ##STR61## wherein R.sup.4 is hydrogen or lower alkyl;
• or where Y is a radical of formula (b), A and B, when taken together, can also form a bivalent radical of formula
• --CH.dbd.CH-- (f)
• or
• --N.dbd.CH-- (g);
• wherein one hydrogen in the said radical (g) and up to two hydrogens in the said radicals (c), (d) or (f) may be replaced by a lower alkyl radical;
• provided than when --A--B-- is a radical of formula (g), said radical is connected to Z by its nitrogen atom and said Z is other than O.