Thiazole derivatives, their preparation and their use in the treatment
of diabetes complications
    2.
    发明授权
    Thiazole derivatives, their preparation and their use in the treatment of diabetes complications 失效
    噻唑衍生物,其制备及其在治疗糖尿病并发症中的应用

    公开(公告)号:US4933355A

    公开(公告)日:1990-06-12

    申请号:US337366

    申请日:1989-04-13

    CPC分类号: C07D277/20

    摘要: Compounds of formula (I): ##STR1## in which: R.sup.1 and R.sup.2 are independently hydrogen, alkyl, aliphatic hydrocarbon groups having one or two carbon-carbon double or treble bonds, cycloalkyl, aryl, substituted aryl, aralkyl, substituted aralkyl, alkanoyl, alkenyol, cycloalkylcarbonyol, arylcarbonyl, substituted arylcarbonyl, arylalkanoyl, substituted arylalkanoyl, arylalkenoyl, substituted arylalkenoyl, alkoxycarbonyl, aryloxycarbonyl, substituted aryloxycarbonyl, aralkyloxycarbonyl, substituted aralkyloxycarbonyl, optionally substituted carbamoyl or thiocarbamoyol, alkylsulfonyl, haloalkylsulfonyl, arylsulfonyl, substituted arylsulfonyl, alkylthio, arylthio and substituted arylthio, or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are attached, form a nitrogen-containing heterocyclic group; one of R.sup.a and R.sup.b is hydrogen, alkyl or halogen, and the other of R.sup.a and R.sup.b is a group of formula (II): ##STR2## R.sup.4 is hydrogen, carboxy, protected carboxy or optionally substituted carbamoyl; R.sup.5 is hydrogen, or carboxyalkyl or protected carboxyalkyl in which the alkyl part is C.sub.1 -C.sub.6 ; n=0, 1 or 2; X is oxygen or sulfur; are useful in the treatment of the complications attendant upon diabetes and may be prepared by condensation of a thiazolidine or rhodanine compound with a compound corresponding to the remainder of the molecule of the compound of formula (I).