申请人:Ciba-Geigy Corporation
公开号:US05229503A1
公开(公告)日:1993-07-20
The invention relates to azo compounds, especially to compounds of formula ##STR1## wherein R.sub.1 is lower alkyl, R.sub.2 is lower alkyl, R.sub.3 is hydrogen, carboxy or sulfo, R.sub.4 is carboxy or sulfo, G is an unsubstituted or substituted 1,4-phenylene group or an unsubstituted or substituted 1,4-naphthylene group, and wherein either R.sub.5 and R.sub.6 together are an additional bond and L is an oxygen or sulfur atom or wherein R.sub.5 is hydrogen, R.sub.6 is halomethyl and L is an oxygen atom, and salts thereof, to the use of compounds I and their salts, to a process for the preparation of compounds I and their salts, to starting materials used in that preparation process, and salts thereof, to a process for the preparation of those starting materials and their salts, to a device in which the compounds I and their salts are used, and to a process in which that device is used. The compounds of formula I can be used as adjuncts in the investigation of proteins and can be prepared in a manner known per se.
该发明涉及偶氮化合物,特别是公式##STR1##中的化合物,其中R.sub.1是较低的烷基,R.sub.2是较低的烷基,R.sub.3是氢、羧基或磺基,R.sub.4是羧基或磺基,G是未取代或取代的1,4-苯基或未取代或取代的1,4-萘基,其中R.sub.5和R.sub.6可以一起构成额外的键,L是氧或硫原子,或者R.sub.5是氢,R.sub.6是卤代甲基,L是氧原子,以及其盐,用于化合物I及其盐的用途,用于制备化合物I及其盐的方法,用于该制备过程中使用的起始材料及其盐,用于制备这些起始材料及其盐的方法,用于使用化合物I及其盐的设备,以及用于使用该设备的方法。公式I的化合物可作为蛋白质研究中的辅助剂使用,并且可以按照已知的方法制备。