Novel N-substituted quinolines of the formula useful in the treatment of cardiovascular illnesses having an alteration in the vasomotricity and a process for their preparation.
用于治疗心血管疾病的有用的新型N取代喹啉类化合物,其具有血管运动性的改变,以及它们的制备方法。
Nitrogenous bicyclic derivatives substituted with benzyl
申请人:Roussel-Uclaf
公开号:US05324839A1
公开(公告)日:1994-06-28
Novel bicyclic compounds in all possible racemic, enantiomeric and diasteroisomeric forms of the formula ##STR1## having antagonistic properties for angiotensin II receptors and novel intermediates and process for their preparation.
Synthetic studies on an antitumor antibiotic, bleomycin. XIII. Synthesis of 2-formylpyrimidine, a key intermediate for the pyrimidine moiety of bleomycin.
An efficient synthesis of the pyrimidine nucleus of bleomycin was achieved. The reaction of diethoxyacetamidine and ethyl ethoxalylpropionate gave ethyl 2-diethoxymethyl-6-hydroxy-5-methylpyrimidine-4-carboxylate in 76% yield ; this product was then converted into ethyl 6-chloro-2-formyl-5-methylpyrimidine-4-carboxylate in 85% yield by treatment with POCl3.
Compounds of the formula ##STR1## in all possible racemic, enantiomeric and diastereoisomeric forms and their non-toxic, pharmaceutically acceptable salts with acids and bases having antagonistic properties for angiotensin II receptors and a process and novel intermediates for their properties.