| abstract |
PURPOSE: Tetrahydropyridopyrimidinone derivatives of formula I (R 1 and R 2 are H, lower alkyl, R 3 is H, lower alkyl, phenyl; R 4 and R 5 are lower alkyl or may form in combination with the adjacent N atom an alicyclic amino radical that may have substituent groups). n COPYRIGHT: (C)1977,JPO&Japio |