Water-soluble antitumor, antiviral and immunosuppressant compounds the formula:
wherein either R, or R2 is a hydrogen atom, a hydroxy group, an acyloxy group, a phthalimido group or an acetamido group and the other is a hydrogen atom; either R3 or R4 is a hydroxy group or an acyloxy group and the other is a hydrogen atom; either Rs or R6 is a hydroxy group or an acyloxy group and the other is a hydrogen atom; either R7 or R8 is a hydrogen atom, a methyl group, a hydroxymethyl group, an acyloxymethyl group, an alkoxycarbonyl group, a group of the formula:
  (wherein X, and X2 are a hydrogen atom or a lower alkyl group), or a carboxyl group and the other is a hydrogen atom; either R11 or R12 is a hydrogen atom, a hydroxy group or an acyloxy group and the other is a hydrogen atom; either R,3 or R14 is a hydroxy group or an acyloxy group and the other is a hydrogen atom; and either R,s or R16 is a methyl group, a hydroxymethyl group or an acyloxymethyl group and the other is a hydrogen atom. These tautomeric compounds are prepared from the corresponding 4-carbamoylimidazolium-5-olate and carbohydrate derivatives and can be made up with conventional excipients into various dosage forms including, because of their water- solubility, injections and drops.
                            式中的
水溶性抗肿瘤、抗病毒和
免疫抑制剂化合物:
其中 R 或 R2 为氢原子、羟基、酰氧基、
酞酰亚胺基或乙酰
氨基,另一个为氢原子; R3 或 R4 为羟基或酰氧基,另一个为氢原子;Rs 或 R6 是羟基或酰氧基,另一个是氢原子; R7 或 R8 是氢原子、甲基、羟甲基、酰氧基甲基、烷氧羰基、式中的基团:
  (其中 X 和 X2 是氢原子或低级烷基)或羧基,另一个是氢原子;R11 或 R12 是氢原子、羟基或酰氧基,另一个是氢原子;R,3 或 R14 是羟基或酰氧基,另一个是氢原子;R,s 或 R16 是甲基、羟甲基或酰氧基,另一个是氢原子。这些同分异构体化合物由相应的 4-
氨基甲酰基
咪唑鎓-5-酸盐和
碳水化合物衍
生物制备而成,可与常规辅料配制成各种剂型,包括注射剂和滴剂,因为它们具有
水溶性。