A compound selected from one of the following:
or a salt, solvate, chemically protected form or prodrug thereof, and its use in treating conditions alleviated by agonism of an EP
2
receptor.
从以下其中一种选择的化合物:或其盐,溶剂合物,
化学保护形式或前药,以及其在治疗通过EP2受体激动而缓解的疾病中的使用。