Rhodanine derivatives, process for their preparation, and aldose reductase inhibitor containing the rhodanine derivatives as active ingredient
申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP0047109A1
公开(公告)日:1982-03-10
The rhodanine derivatives of the general formula:
[wherein (I) R1 and R2 are taken together to represent a tetramethylene or pentamethylene group; (II) R1 represents a hydrogen atom, and R2 represents (1) a cycloalkyl or cycloalkenyl group of 4 - 7 carbon atoms which is unsubstituted or substituted by at least one alkyl group of 1 - 4 carbon atoms, (2) an anthryl or naphthyl group, (3) a phenyl group which is unsubstituted or substituted by at least one of (a) halogen atom, (b) trifluoromethyl group, (c) hydroxyl group, (d) nitro group, (e) carboxyl group, (f) amino group which may be substituted by alkyl group(s) of 1 - 4 carbon atoms, (g) alkyl, alkoxy or alkylthio group of 1 - 5 carbon atoms, (h) phenyl group, (i) heterocyclic group containing at least one of nitrogen, oxygen and sulfur atoms which is unsubstituted or substituted by at least one of the above-described substituents (a) to (h), and (j) alkyl group of 1 - 4 carbon atoms which is substituted by at least one of the above-described substituents (c), (h) and (i), (4) a heterocyclic group containing at least one of nitrogen, oxygen and sulfur atoms which is unsubstituted or substituted by at least one of oxo group and the above-described substituents (a) to (h) and (i). or (5)
group (wherein R4 represents a hydrogen atom, a halogen atom, phenyl group or an alkyl group of 1 - 5 carbon atoms; and R5 represents a hydrogen atom, a phenyl group or an alkyl group of 1 - 5 carbon atoms) or ,
group; or (III) R' and R2, which may be the same or different with each other, each represents a phenyl group which is unsubstituted or substituted by at least one of the above-described substituents (a) to (j); and R3 represents a hydrogen atom, an alkyl group of 1 - 12 carbon atoms, an aralkyl group of 7 - 13 carbon atoms, a cycloalkyl or cycloalkenyl group of 4 - 7 carbon atoms which is unsubstituted or substituted by at least one alkyl group of 1 - 4 carbon atoms, or a phenyl group which is unsubstituted or substituted by at least one of the above-described substituents (a) to (j)] and, when R3 represents a hydrogen atom, non-toxic salts of the acids possess a strong inhibitory activity on aldose reductase, and are useful for the prevention and treatment of nerve disturbances such as neuralgia, retinopathy, diabetic cataract and renal disturbances such as tubular nephropathy.
通式如下的罗丹宁衍生物:
[其中 (I) R1 和 R2 合起来代表四亚甲基或五亚甲基;(II)R1代表氢原子,R2代表(1)未被取代或被至少一个1-4个碳原子的烷基取代的4-7个碳原子的环烷基或环烯基,(2)蒽基或萘基、(3) 未被取代或被以下至少一种基团取代的苯基:(a) 卤素原子;(b) 三氟甲基;(c) 羟基;(d) 硝基;(e) 羧基;(f) 可被 1-4 个碳原子的烷基取代的氨基;(g) 1-5 个碳原子的烷基、烷氧基或烷硫基、(h) 苯基; (i) 含至少一个氮、氧和硫原子的杂环基团,该基团未被取代或被上述(a)至(h) 取代基中的至少一个取代基取代;以及 (j) 1 - 4 个碳原子的烷基,该基团被上述(c)取代基中的至少一个取代基取代、(4) 含至少一个氮、氧和硫原子的杂环基团,该杂环基团未被取代或被至少一个氧 代基和上述取代基(a)至(h)和(i)取代。或 (5)
基团(其中 R4 代表氢原子、卤素原子、苯基或 1 - 5 个碳原子的烷基;R5 代表氢原子、苯基或 1 - 5 个碳原子的烷基)或 、
基团;或 (III) R' 和 R2(可以相同或不同)各自代表未被取代或被上述(a)至(j)中至少一个取代基取代的苯基;且 R3 代表氢原子、1 - 12 个碳原子的烷基、7 - 13 个碳原子的芳烷基、未被取代或被至少一个 1 - 4 个碳原子的烷基取代的 4 - 7 个碳原子的环烷基或环烯基,或未被取代或被至少一个上述取代基 (a) 至 (j) 取代的苯基],且、当 R3 代表氢原子时,这些酸的无毒盐对醛糖还原酶具有很强的抑制活性,可用于预防和治疗神经紊乱,如神经痛、视网膜病变、糖尿病性白内障和肾功能紊乱,如肾小管肾病。