申请人:Bayer Aktiengesellschaft
公开号:US05300656A1
公开(公告)日:1994-04-05
Coumarin deviatives of the formula ##STR1## in which R.sup.1 denotes cyano, R.sup.2 represents phenyl or thiazolyl bonded in the 2-, 4-, or 5-position, R.sup.3 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxycarbonyl-C.sub.1 -C.sub.4 -alkyl and R.sup.4 represents hydrogen, C.sub.1 -C.sub.4 -alkyl or phenylsulphonyl, where C.sub.1 -C.sub.4 -alkyl can be substituted by hydroxyl, amino, carboxyl or C.sub.1 -C.sub.4 -alkoxy-carbonyl and phenyl can be monosubstituted or disubstituted by chlorine, bromine or C.sub.1 -C.sub.4 -alkyl, where furthermore R.sup.3 and R.sup.4, together with the N atom which they substitute, can denote a morpholine ring, a piperazine ring or a triazole ring which can carry one or two substituents from the group comprising methyl, ethyl and phenyl, and where furthermore one of the radicals R.sup.2, R.sup.3 and R.sup.4 denotes or carries a primary or secondary amino group, the hydroxyl group, the carboxyl group or the C.sub.1 -C.sub.4 -alkoxy-carbonyl group or can be converted into such a group by hydrolysis or hydrogenation, are suitable for dyeing biologically active compounds.
公式为##STR1##的香豆素衍生物,其中R.sup.1表示氰基,R.sup.2代表连接在2-、4-或5-位的苯基或噻唑基,R.sup.3表示氢、C.sub.1 -C.sub.4 -烷基或C.sub.1 -C.sub.4 -烷氧羰基-C.sub.1 -C.sub.4 -烷基,R.sup.4表示氢、C.sub.1 -C.sub.4 -烷基或苯基磺酰基,其中C.sub.1 -C.sub.4 -烷基可被羟基、氨基、羧基或C.sub.1 -C.sub.4 -烷氧羰基取代,苯基可被氯、溴或C.sub.1 -C.sub.4 -烷基单取代或双取代,此外R.sup.3和R.sup.4连同它们所取代的N原子可以表示吗啡环、哌嗪环或三唑环,该环可以携带甲基、乙基和苯基等羟基、氨基、羧基或C.sub.1 -C.sub.4 -烷氧羰基,此外,R.sup.2、R.sup.3和R.sup.4中的一个可以表示或携带一次或二次氨基、羟基、羧基或C.sub.1 -C.sub.4 -烷氧羰基,或者可以通过水解或氢化转化为这样的基团,适用于染色生物活性化合物。