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Diaminomethylidene derivatives

  • US 5,753,654 A
  • Filed: 11/07/1996
  • Issued: 05/19/1998
  • Est. Priority Date: 05/18/1994
  • Status: Expired due to Fees
First Claim
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1. A diaminomethylidene derivative represented by formula (I) ##STR44## wherein R1 is a hydrogen atom, a C1 -C6 alkyl group, a C3 -C6 cycloalkyl group, a C3 -C6 cycloalkyl C1 -C1 alkyl group, an aryl group or an aryl C1 -C4 alkyl group, in which the aryl moiety of the aryl group or aryl C1 -C4 alkyl group may be optionally substituted with a halogen atom, a C1 -C6 alkyl group, a halo C1 -C6 alkyl group, a C1 -C6 alkoxy group, a C1 -C6 alkoxycarbonyl group, a phenyl group or an amino group;

  • X is O, S, CHNO2, C(COOR4)2, C(COOR4)CN or C(CN)2, in which R4 is a C1 -C6 alkyl group, a C3 -C6 cycloalkyl group, an aryl group, or an aryl C1 -C4 alkyl group;

    R2 is a group of the following general formulae (II)-(III);

    ##STR45## wherein R5 is a C1 -C6 alkyl group, an aryl C1 -C4 alkyl group, or an aryloxy C2 -C6 alkyl group, or in which the aryl moiety of the said groups may be optionally substituted with a halogen atom, a C1 -C6 alkyl group, a halo C1 -C6 alkyl group, a C1 -C6 alkoxy group, a C1 -C6 alkoxycarbonyl group, a phenyl group or an amino group,Z1 and Z2 are O;

    R3 is a hydrogen atom, a C1 -C6 alkyl group or a C1 -C6 alkoxy C2 -C6 alkyl group;

    provided that there is excluded a compound wherein R1 is an aryl group, X is O, and R2 is a group of formula (II) wherein R5 is a C1 -C2 alkyl group or a pharmacologically acceptable salt thereof.

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