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Substituted N-phenylpiperidines and drugs therefrom

  • US 5,296,485 A
  • Filed: 03/11/1992
  • Issued: 03/22/1994
  • Est. Priority Date: 05/31/1991
  • Status: Expired due to Fees
First Claim
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1. A substituted N-phenylpiperidine of the formula I ##STR41## where R1 is hydrogen, nitro, cyano, halogen, C1 -C4 -alkyl, trifluoromethyl, trifluoromethoxy, hydroxyl, hydroxymethyl, hydroxycarbonyl, formyl, formylamino, amino, aminocarbonyl, 5-tetrazinyl, R4 --O--, R4 --O--CH2 --, R4 --O--CO--, R4 --CO--, R4 --NH--CO, R4 --CO--NH--, R4 --SO2 --NH--;

  • R2 is hydrogen, nitro, halogen, C1 -C4 -alkyl or R4 --O--;

    R3 is one of the following;

    ##STR42## R4 is C1 -C4 -alkyl or phenyl which may carry one of the R2 radicals;

    R5 and R6 are each hydrogen, C1 -C4 -alkyl or phenyl which can carry one of the R2 radicals;

    R7 is one of the R1 radicalsn is 0 or 1;

    m is 1 or 2;

    with the proviso that R3 can be ##STR43## only when n is 1, and the optical isomers when there is optical isomerism, and the physiologically tolerated acid addition salts.

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