Novel 4-R₁-R₂-R₃-2-saccharinylmethyl, 4-R₄-4-R₅-6-R₆-4,5,6,7-tetrahydro-2-saccharinylmethyl and 4,7-C-4,5,6,7-tetrahydro-2-saccharinylmethyl phosphates, phosphonates and phosphinates of formulas I, II and IIA respectively
are useful in the treatment of degenerative diseases, and compositions containing them, methods for using them to treat degenerative diseases, and processes for their preparation by reaction of the corresponding 2-halomethylsaccharins with a phosphate, phosphonate or phosphinic acidderivative.
分别为式 I、II 和 IIA 的新型 4-R₁-R₂-R₃-2-
糖精基甲基、4-R₄-4-R₅-6-R₆-4,5,6,7-四氢-2-
糖精基甲基和 4,7-C-4,5,6,7-四氢-2-
糖精基
甲基膦酸盐、
膦酸盐和
膦酸盐
可用于治疗退行性疾病,以及含有这些物质的组合物、使用这些物质治疗退行性疾病的方法,以及通过相应的 2-半甲基糖与
磷酸盐、
膦酸盐或
膦酸衍
生物反应制备这些物质的工艺。