申请人:Uclaf; Roussel
公开号:US04687857A1
公开(公告)日:1987-08-18
Novel alkyl .beta.-oxo-benzenepropanoates of the formula ##STR1## wherein X is in the 5-,6-,7- or 8-position and is selected from the group consisting of hydrogen, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 4 carbon atoms, CF.sub.3 --, CF.sub.3 S-- and CF.sub.3 O--, R.sub.1 ' is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.2 ' is selected from the group consisting of hydrogen, thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl, isoxazolyl, imidazolyl, pyrimidyl, tetrazolyl, thienyl, benzothiazolyl and phenyl optionally substituted with at least one member of the group consisting of halogen, alkoxy of 1 to 4 carbon atoms, hydroxy, phenyl, CF.sub.3 --, NO.sub.2 -- alkyl of 1 to 4 carbon atoms and alkyl of 1 to 4 carbon atoms substituted with amino, alkylamino or dialkylamino with alkyls of 1 to 3 carbon atoms or R.sub.1 ' and R.sub.2 ' taken together with the nitrogen atom to which they are attached form a member of the group consisting of thiazolyl, 4,5-dihydrothiazolyl, pyridinyl, oxazolyl, isoxazolyl, imidazolyl, pyrimidyl, tetrazolyl, thienyl and benzothiazolyl with the double bond being attached to the nitrogen atom, R is alkyl of 1 to 8 carbon atoms, R.sub.3 is selected from the group consisting of hydrogen, halogen and alkyl of 1 to 4 carbon atoms, R.sub.4 is hydrogen or halogen and R.sub.5 is halogen and a process for their preparation and a process for the preparation of compounds of the formula ##STR2## wherein X, R.sub.1 ', R.sub.2 ', R.sub.3, R.sub.4 and R.sub.5 have the above definition.
该专利说明了一类新型的化合物,化合物的通式为:##STR1## 其中X在5、6、7或8位上,可以是氢、卤素、1至5个碳原子的烷基、1至4个碳原子的烷氧基、CF.sub.3 --、CF.sub.3 S--和CF.sub.3 O--中的一种;R.sub.1 '可以是氢或1至4个碳原子的烷基;R.sub.2 '可以是氢、噻唑基、4,5-二氢噻唑基、吡啶基、噁唑基、异噁唑基、咪唑基、嘧啶基、四唑基、噻吩基、苯并噻唑基和苯基,其中苯基可以选用卤素、1至4个碳原子的烷氧基、羟基、苯基、CF.sub.3 --、NO.sub.2 --、1至4个碳原子的烷基和取代有氨基、1至3个碳原子的烷基氨基或二烷基氨基的1至4个碳原子的烷基取代的苯基;或者R.sub.1 '和R.sub.2 '与它们所连接的氮原子一起形成噻唑基、4,5-二氢噻唑基、吡啶基、噁唑基、异噁唑基、咪唑基、嘧啶基、四唑基、噻吩基和苯并噻唑基中的一种,且双键连接到氮原子上;R是1至8个碳原子的烷基;R.sub.3可以是氢、卤素或1至4个碳原子的烷基;R.sub.4可以是氢或卤素;R.sub.5可以是卤素。此外,该专利还公开了制备这些化合物的方法。