会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • METHOD OF PRODUCING DIHYDROXYPYRIMIDINE DERIVATIVES
    • 用于生产羟基嘧啶衍生物
    • WO1997008152A1
    • 1997-03-06
    • PCT/EP1996003826
    • 1996-08-30
    • LONZA AGSCHMIDT, BeatKIENER, AndreasMcGARRITY, John
    • LONZA AG
    • C07D239/54
    • C07D239/54C12P13/02
    • The invention concerns a novel method of producing dihydroxypyrimidine derivatives of general formula (I), in which R and R are identical or different and designate a hydrogen atom, a C1 - C4 alkyl group or an aryl group. In the first step, as a substrate, a compound of general formula (II), in which R has the above meaning and R designates -CN or COOR , R being a C1 - C4 alkyl group, is converted by microorganisms of the Rhodococcus species into a malonic acid derivative of general formula (III), in which R has the above meaning and R designates a C1 - C4 alkoxy group or -NH2, and this derivative is then cyclized in the second step with a carboxylic acid amide of general formula (IV), in which R has the above meaning, in the presence of a base to form an end product according to formula (I).
    • 用于制造(I)式中,R <1>和R <2>是相同的或不同的,是氢原子,C1-C4烷基或芳基进行说明通式羟基嘧啶衍生物的新方法。 这里,在第一阶段中作为底物的一般式的化合物(II),其中R <2>如上且R <3>是-CN或COOR <4>,其中R <4>是一个C1-C4定义 烷基,在由属的微生物的手段通式的丙二酸衍生物红球菌(III)其中R <2>如上所定义并且R <5>装置实现的C1-C4烷氧基或-NH 2,这然后在第二 阶段与通式(IV)其中,R <1>具有给出的含义,在碱的存在下环化式(I),得到最终产物的羧酸酰胺。