Pyrimido-quinoxalines having antiallergic properties
申请人:Roussel Uclaf
公开号:US04472401A1
公开(公告)日:1984-09-18
A compound selected from the group consisting of pyrimido quinoxalines of the formula ##STR1## wherein R.sub.1 represents an alkoxy radical of 1 to 5 carbon atoms and R is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, --COR.sub.A, --CHO and ##STR2## R.sub.A is selected from the group consisting of alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, alkoxy of 1 to 5 carbon atoms and phenyl optionally substituted with at least one member of the group consisting of halogen, --NO.sub.2 and alkoxy of 1 to 3 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having antiallergic properties.