A series of novel spiro-deteroazolones derived from a 2,3-dihydropryrano[2,3-b]pyridine ring system have been prepared, including their pharmaceutically acceptable salts. These compounds are useful in therapy as aldose reductase inhibitors for the control of certain chronic diabetic complications. Typical member compounds include spiro-imides, spiro-oxazolidinediones, spiro-thiazolidinediones and spiro-imidazolidinediones derived from the aforesaid ring system. (4'S) (2'R)-6'-Chloro-2',3'-dihydro-2'-methyl-spiro-[imidazolidine-4,4'-4'H-pyra no[2,3-b]pyridine]-2,5-dione represents a typical and preferred member compound. Methods for preparing all these compounds from known starting materials are provided.
一系列源自
2,3-二氢吡喃并[2,3-b]
吡啶环系统的新型螺二
氮杂环酮已被制备,包括其药学上可接受的盐。这些化合物在治疗上作为醛糖还原酶
抑制剂,用于控制某些慢性糖尿病并发症是有用的。典型的成员化合物包括源自上述环系统的螺
酰亚胺、螺
噁唑烷二酮、螺
噻唑烷二酮和螺
咪唑烷二酮。(4'S)(2'R)-6'-
氯-2',3'-二氢-2'-甲基-螺[
咪唑烷-4,4'-4'H-
吡喃并[2,3-b]
吡啶]-2,5-二酮代表了一个典型且优选的成员化合物。提供了从已知起始原料制备所有这些化合物的方法。