Patent ID: 6403112
Filing Date: 2002-06-11
Classification: A61K,A61P,A61Q,C07D,Y10S

Abstract:
A compound of the tautomeric formula Ia or Ib and/or of a physiologically acceptable salt of the compound of the formula Ia or Ib and/or of a stereoisomeric form of the compound of the formula Ia or Ib; R1 being defined as follows:a) a hydrogen atom or b) (C1-C4)-alkyl, R2 being defined as follows: a) a hydrogen atom, b) â€”COOH, c) d) in which R5 is 1) a hydrogen atom, 2) (C1-C4)-alkyl, 3) an amino acid radical, 4) a dipeptide radical or 5) a tripeptide radical, R3 and R4 independently of one another being defined as follows: a) a hydrogen atom or b) â€”OH, and n is the number 1, 2 or 3, with the exception of the compounds (S)-1,4,5,6-tetrahydro-2-methyl-4-pyrimidinecarboxylic acid or (S,S)-1,4,5,6-tetrahydro-5-hydroxy-2-methyl-4-pyrimidine carboxylic acid.