申请人:Ono Pharmaceutical Co., Ltd.
公开号:US06043275A1
公开(公告)日:2000-03-28
A 3,7-dithiaprostanoic acid derivative of the formula (I) ##STR1## (wherein, R.sup.1 is OH, C1.about.6 alkyloxy, NR.sup.6 R.sup.7 (R.sup.6, R.sup.7 are H, C1.about.6 alkyl.); R.sup.2 is H, OH; R.sup.3 is single bond, C1.about.6 alkylene; R.sup.4 is (i) C1.about.8 alkyl substituted by C1.about.6 alkyloxy, halogen etc., (ii) phenyloxy, C3.about.7 cycloalkyloxy, (iii) furyl, furyloxy, thienyl, thienyloxy, naphthyl, naphthyloxy, phthalanyl, phthalanyloxy, (iv) phenyl, phenyloxy, C3.about.7 cycloalkyl, C3.about.7 cycloalkyloxy substituted by C1.about.6 alkyl etc., (v) furyl, furyloxy, thienyl, thienyloxy, naphthyl, naphthyloxy, phthalanyl, phthalanyloxy substituted by C1.about.6 alkyl etc.; R.sup.5 is H, C1.about.6 alkyl.) can bind PGE.sub.2 receptor (particularly, EP4 subtype receptor) strongly. So, they are useful for the prevention and/or treatment of immunological diseases (autoimmune diseases, rejection after organ transplantation etc.), asthma, abnormal bone formation, neuronal cell death, liver damage, nephritis, hypertension, myocardiac ischemia and sleeping disorder etc.
一种具有以下结构的3,7-二硫代丙氧酸衍生物(I)##STR1##(其中,R.sup.1为OH,C1至C6烷氧基,NR.sup.6 R.sup.7(R.sup.6、R.sup.7为H,C1至C6烷基);R.sup.2为H,OH;R.sup.3为单键,C1至C6烷基;R.sup.4为(i)C1至C8烷基,被C1至C6烷氧基、卤素等取代,(ii)苯氧基,C3至C7环烷氧基,(iii)呋喃基,呋喃氧基,噻吩基,噻吩氧基,萘基,萘氧基,邻苯二甲酰基,邻苯二甲酰氧基,(iv)苯基,苯氧基,C3至C7环烷基,被C1至C6烷基等取代,(v)呋喃基,呋喃氧基,噻吩基,噻吩氧基,萘基,萘氧基,邻苯二甲酰基,邻苯二甲酰氧基,被C1至C6烷基等取代;R.sup.5为H,C1至C6烷基),可以强烈结合PGE.sub.2受体(特别是EP4亚型受体)。因此,它们对于预防和/或治疗免疫性疾病(自身免疫疾病,器官移植后的排斥等),哮喘,异常骨骼形成,神经细胞死亡,肝脏损伤,肾炎,高血压,心肌缺血和睡眠障碍等方面是有用的。