Discovery of Orally Available 8-Aza-5-thiaProstaglandin E1 Analogs as Highly Selective EP4 Agonists
作者:Tohru Kambe、Toru Maruyama、Masayuki Nakano、Yoshiyuki Yamaura、Tomoyuki Shono、Akiteru Seki、Kiyoto Sakata、Takayuki Maruyama、Hisao Nakai、Masaaki Toda
DOI:10.1248/cpb.59.1523
日期:——
Analogs 8-aza-16-aryl prostaglandin E1 (PGE1) and 8-aza-5-thia-16-arylPGE1 were synthesized and evaluated with respect to their subtype receptor affinity and EP4 agonist activity for the purposes of identifying subtype-selective EP4 agonists that demonstrate oral efficacy. Using an inhibition assay of lipopolysaccharide (LPS)-induced tumor necrosis factor (TNF)-α production in rats, representative compounds were evaluated for their pharmacokinetic profiles and in vivo efficacy. Structure–activity relationships (SARs) were characterized and presented. Of the compounds tested, several demonstrated better oral exposure and/or in vivo efficacy compared with the previously reported analog 2a.
合成了 8-aza-16-aryl 前列腺素 E1 (PGE1) 和 8-aza-5-thia-16-arylPGE1 类似物,并对它们的亚型受体亲和力和 EP4 激动剂活性进行了评估,以确定具有口服疗效的亚型选择性 EP4 激动剂。通过抑制大鼠体内脂多糖(LPS)诱导的肿瘤坏死因子(TNF)-α的产生,对代表性化合物的药代动力学特征和体内疗效进行了评估。对结构-活性关系(SARs)进行了表征和展示。与之前报道的类似物 2a 相比,在测试的化合物中,有几种显示出更好的口服暴露和/或体内疗效。