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Cyclic imino derivatives and pharmaceutical compositions containing them

  • US 5,541,343 A
  • Filed: 12/28/1994
  • Issued: 07/30/1996
  • Est. Priority Date: 11/02/1990
  • Status: Expired due to Term
First Claim
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1. A compound of the formula Ia ##STR2## wherein R1 represents a hydrogen atom,a phenyl group optionally substituted by a chlorine or bromine atom, by an C1-2 -alkyl, C1-2 -alkoxy or trifluoromethyl group, by a carboxy, alkoxycarbonyl, aminocarbonyl, aminosulphonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkylsulphonylamino or alkanoylamino group,an allyl group,a C1-4 -alkyl group which may be substituted by two phenyl groups, by a C3-7 -cycloalkyl, naphthyl or phenyl group, whilst the latter may be substituted by a fluorine, chlorine or bromine atom, by a C1-4 -alkyl group, by a C1-6 -alkoxy group, by an alkylsulphenyl, alkylsulphinyl, alkylsulphonyl, phenyl, phenylalkyl, phenylalkoxy, hydroxy or trifluoromethyl group, by two alkoxy groups or by two chlorine or bromine atoms,a C2-4 -alkyl group substituted in 2-, 3- or 4-position by an alkylsulphenyl, alkylsulphinyl, alkylsulphonyl, phenylsulphenyl, phenylsulphinyl, phenylsulphonyl, amino, alkanoylamino, benzoylamino, N-alkyl-alkanoylamino, alkanesulphonylamino, phenylsulphonylamino, hydroxy, alkoxy or phenoxy group,a methyl group substituted by a carboxy, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, benzylaminocarbonyl, bis(2-methoxyethyl)aminocarbonyl or biphenylyl group,R2 represents a hydrogen atom or an optionally phenyl-substituted C1-4 -alkyl group,B represents an amidino group optionally substituted by one or two C1-4 -alkyl groups, by a cyano, hydroxy, methoxy, benzyl, benzoyl, methoxybenzoyl, benzyloxycarbonyl, phenyloxycarbonyl or an C1-4 -alkyloxycarbonyl group,a cyano, aminomethyl or guanidinomethyl group;

  • Y represents a straight-chained or branched C1-5 -alkylene group;

    E represents a carbonyl group substituted by a hydroxy, C1-6 -alkoxy, amino, C1-4 -alkylamino, dialkylaminocarbonyl-alkoxy or phenylalkoxy group wherein the phenyl nucleus may additionally be substituted by one or two methoxy groups, andX represents biphenylyloxy-C1-2 -alkylene group attached via the alkylene moiety to the pyrrolidinone ring in 4- or 5-position, wherein each phenylene moiety may be substituted by a fluorine, chlorine or bromine atom or by an alkyl, alkoxy, trifluoromethyl, alkylsulphenyl, alkylsulphinyl, alkylsulphonyl, nitro, alkanoylamino or alkanesulphonylamino group or by another alkyl group,wherein, unless otherwise stated, the above-mentioned alkyl, alkoxy and alkanoyl moieties may each contain from 1 to 3 carbon atoms,or a pharmaceutically acceptable salt thereof.

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