Pyrido[2,1-b]quinazoline derivatives useful as agents for treatment of
申请人:Hoffmann-La Roche Inc.
公开号:US04551460A1
公开(公告)日:1985-11-05
Pyrido[2,1-b]quinazoline derivatives of the formulas ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are as hereinafter set forth, are described. The compounds of formulas I and II are useful as agents for the treatment of allergic conditions as well as for the treatment of vascular disorders involving thrombosis.