The optimization of a class of indole cPLA 2 alpha inhibitors is described herein. The importance of the substituent at C3 and the substitution pattern of the phenylmethane sulfonamide region are highlighted. Optimization of these regions led to the discovery of 111 (efipladib) and 121 (WAY-196025), which are shown to be potent, selective inhibitors of cPLA 2 alpha in a variety of isolated enzyme assays, cell based assays, and rat and human whole blood assays. The binding of these compounds has been further examined using isothermal titration calorimetry. Finally, these compounds have shown efficacy when dosed orally in multiple acute and chronic prostaglandin and leukotriene dependent in vivo models.

中文翻译：

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吲哚胞质磷脂酶A2α抑制剂：4- {3- [5-氯-2-（2-{[（3,4-二氯苄基）磺酰基]氨基}乙基）-1-（）的发现以及体内和体外表征二苯甲基）-1H-吲哚-3-基]丙基}苯甲酸，依非拉地。

本文描述了一类吲哚cPLA 2α抑制剂的优化。突出了C 3处取代基的重要性和苯基甲烷磺酰胺区的取代方式。这些区域的优化导致发现111（efipladib）和121（WAY-196025），在各种分离的酶测定，基于细胞的测定以及大鼠和人类中，它们被证明是有效的cPLA 2α选择性抑制剂。全血检测。这些化合物的结合已使用等温滴定热法进一步检查。最后，当在多种急性和慢性前列腺素和白三烯依赖性的体内模型中口服给药时，这些化合物显示出功效。