There is provided a compound of Formula (I) or (II) and salts thereof wherein R1 is an imine or an alkylated imine, said imine or alkylated imine comprising a linear or branched alkyl group of length C1 to C5; R2 are each independently (a) an unsubstituted or substituted linear or branched alkyl group of chain length C1-7; (b) an aryl substituted alkyl group, wherein said aryl group is substituted, (c) an alkoxy substituted alkyl group, wherein said alkoxy group is substituted by a methoxy group or an alkoxy group substituted with an alkoxy group,; or (d) an H atom; wherein said substituents in (a) and (b) are selected from hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, amino, aryl, nitro, oxo and fluoro groups. R3 and R4 are linear or branched alkyl groups of length C1 to C6 constituting a ketal or a cyclic ketal. The compounds claimed may be used for the manufacture of a medicament.
提供了一个化合物,其
化学式为(I)或(II)及其盐,其中R1是
亚胺或烷基化
亚胺,所述
亚胺或烷基化
亚胺包括一条或分支的碳链长度为C1至C5的烷基基团;R2分别为(a)链长为C1-7的未取代或取代的线性或分支烷基基团;(b)芳基取代的烷基基团,其中所述芳基取代,(c)烷氧基取代的烷基基团,其中所述烷氧基被甲氧基或烷氧基取代的烷氧基取代;或(d)一个H原子;其中(a)和(b)中的取代基选择自羟基、烷氧基、酰氧基、烷氧羰氧基、
氨基、芳基、硝基、氧化物和
氟基。R3和R4是碳链长度为C1至C6的线性或分支烷基基团,构成一个
缩醛或环
缩醛。所述化合物可用于制造药物。