申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP0985663A1
公开(公告)日:2000-03-15
A 3,7-dithiaprostanoic acid derivative of the formula (I)
(wherein, R1 is OH, C1∼6 alkyloxy, NR6R7 (R6, R7 are H, C1∼6 alkyl.); R2 is H, OH; R3 is single bond, C1∼6 alkylene; R4 is (i) C1∼8 alkyl substituted by C1∼6 alkyloxy, halogen etc., (ii) phenyloxy, C3∼7 cycloalkyloxy, (iii) furyl, furyloxy, thienyl, thienyloxy, naphthyl, naphthyloxy, phthalanyl, phthalanyloxy, (iv) phenyl, phenyloxy, C3∼7 cycloalkyl, C3∼7 cycloalkyloxy substituted by C1∼6 alkyl etc., (v) furyl, furyloxy, thienyl, thienyloxy, naphthyl, naphthyloxy, phthalanyl, phthalanyloxy substituted by C1∼6 alkyl etc.; R5 is H, C1∼6 alkyl.) can bind PGE2 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 3,7-二硫代前列腺酸衍生物,其式为(I)
(其中,R1 是 OH、C1∼6 烷氧基、NR6R7(R6、R7 是 H、C1∼6 烷基);R2 是 H、OH;R3 是单键、C1∼6 亚烷基;R4 是 (i) 被 C1∼6 烷氧基、卤素等取代的 C1∼8 烷基、(iii) 呋喃基、呋喃氧基、噻吩基、噻吩氧基、萘基、萘氧基、酞酰基、酞氧基, (iv) 被 C1∼6 烷基等取代的苯基、苯基氧基、C3∼7 环烷基、C3∼7 环烷氧基(v) 呋喃基、呋喃氧基、噻吩基、噻吩氧基、萘基、萘氧基、被 C1∼6 烷基取代的酞酰基、酞氧基等;R5 为 H、C1∼6 烷基)能与 PGE2 受体(尤其是 EP4 亚型受体)强烈结合。因此,它们可用于预防和/或治疗免疫性疾病(自身免疫性疾病、器官移植后的排斥反应等)、哮喘、骨骼形成异常、神经细胞死亡、肝损伤、肾炎、高血压、心肌缺血和睡眠障碍等。