Novel 3,2'-spiro(1',3'-thiazolidine) compounds which are transient prodrug forms of known 6- and/or 9-haloglucocorticosteroids are described. The subject prodrugs provide improved delivery of the prior art steroids for therapeutic purposes, particularly in alleviating inflammation, and can be prepared by known methods, for example, by reacting the corresponding 3-keto steroids with a thiazolidine forming reagent such as an L-cysteine alkyl ester.
本发明涉及一种3,2'-螺(1',3'-
噻唑啉)化合物,它们是已知6-和/或9-卤代糖皮质激素的瞬时前药形式。该前药为治疗目的提供了改进的先前艺术类
固醇输送,特别是在缓解炎症方面,并且可以通过已知方法制备,例如通过将相应的3-
酮类固醇与
噻唑啉形成试剂如
L-半胱氨酸烷基酯反应。