申请人:Merck & Co., Inc.
公开号:US04087435A1
公开(公告)日:1978-05-02
Novel 8-aza-9-dioxothiaprostanoic acid compounds, their salts, and derivatives, are prepared from ethyl 7-(3-hydroxymethyl-2-isothiazolidinyl)-5-heptynoate S,S-dioxide by first hydrogenating the triple bond over a Lindlar catalyst, followed by mild oxidation, to produce the corresponding 3-formyl compound, which is condensed with the ylide prepared from dimethyl-(2-oxoheptyl)phosphonate to produce the .alpha.,.beta.-unsaturated ketone, followed by reduction to the corresponding carbinol, and ester hydrolysis. The compounds are useful especially for the treatment of patients with poorly functioning kidneys, as hypotensives, or as platelet aggregation inhibitors.
8-aza-9-二氧硫代-前列酸衍生物及其盐类,可以从乙基7-(3-羟甲基-2-异噻唑啉基)-5-庚炔酸S,S-二氧化物制备而成。首先在Lindlar催化剂上氢化三键,然后进行温和氧化,产生相应的3-甲醛化合物,将其与由二甲基-(2-氧代庚基)膦酸酯制备的叶立德缩醛基团反应,生成α,β-不饱和酮,然后还原为相应的羟基甲基化合物,再进行酯水解。这些化合物特别适用于治疗肾功能不佳的患者,作为降压药或抑制血小板聚集的药物。