A new series of 3-hydroxy-8-nitroimidazo[5,1-b]-1,4,5,6-tetrahydropyrimidine systems, being potential tuberculostatic agents, were synthesized. These products are close structural analogs of the basic structure of the known antitubercular bicyclic nitroimidazooxazine PA-824. The structures of the products obtained were confirmed by X-ray methods on the example of 3-hydroxy-8-nitro-1-phenylaminoimidazo[5,1-b]-1,4,5,6-tetrahydropyrimidine. Evaluation of these products for their anti-tuberculosis effects revealed interesting structure-activity relationships.
Antitubercular Agents Bridged Bicyclo Compounds, Heterocyclic