Synthesis and pharmacological activity of 6H-thiazolo [3',2': 1,2]-5-oxopyrimido[5,4-b]indole derivatives, a new heterocyclic ring system.

: In the outline of the investigations concerning the analgesic and antiinflammatory activity of new fused heterocyclic compounds containing the pyrimidine ring, a series of 6H-thiazolo[3',2': 1,2]-5-oxopyrimido[5,4-b]indole derivatives was synthesized. Pharmacological results are reported and discussed.