abstract |
PURPOSE: Quinazoline derivatives I(R is H, nitra, halogen or lower alkyl; R 1 is lower alkyl; R 2 is H, lower alkenyl, cycloalkyl or lower alkyl; R 3 is lower alkenyl, cycloalkyl or lower alkyl; R 2 and R 3 may together form a 5 - 6 memb bered heterocyclic ring with the adjacent nitrogen atom). E.g. 2-isopropylamino4-methylthioquinazoline. n COPYRIGHT: (C)1977,JPO&Japio |