申请人:Schering Aktiengesellschaft
公开号:US05316756A1
公开(公告)日:1994-05-31
Compounds of the general formula I: ##STR1## R.sup.1 signifies a COOX group or the group ##STR2## R.sup.2 and R.sup.3 are the same or different and signify a hydrogen atom, a lower straight- or branched-chain, hydrocarbon radical, a phenyl or benzyl group or either R.sup.2 or R.sup.3 signifies the group ##STR3## or R.sup.2 or R.sup.3 together signify a trimethylene or tetramethylene radical, R.sup.4 represents a straight- or branched-chain mono- or poly-hydroxyalkyl radical, R.sup.5 represents a hydrocarbon atom, a lower straight- or branched-chain, optionally mono- or poly-hydroxylated, hydrocarbon radical, Q signifies an oxygen or sulfur atom or the group ##STR4## wherein j signifies the numbers 1 to 4 and R.sup.x signifies a hydrogen atom, a lower alkoxy group with 1 to 4 carbon atoms, a COOX group, or if j>1, also the group ##STR5## wherein k and m are the same or different and represent the numbers 0 or 2, l signifies the numbers 1 or 2 and n and w are the same or different and signify the numbers 0 or 1, wherein n and w can only represent the number 1, if k and m signify the number 2, and X represents hydrogen atoms and/or metal ion equivalents, and their salts with physiologically harmless organic bases, are valuable complexing agents, complexes and complex salts for NMR imaging.
通式I的化合物:##STR1## R.sup.1表示COOX基团或基团##STR2## R.sup.2和R.sup.3相同或不同,表示氢原子,较低的直链或支链碳氢化合物基团,苯基或苄基,或者R.sup.2或R.sup.3表示基团##STR3## 或R.sup.2或R.sup.3一起表示三亚甲基或四亚甲基基团,R.sup.4表示直链或支链的单羟基或多羟基烷基基团,R.sup.5表示碳氢化合物原子,较低的直链或支链,可选地单羟基或多羟基化的碳氢化合物基团,Q表示氧或硫原子或基团##STR4## 其中j表示数字1至4,R.sup.x表示氢原子,具有1至4个碳原子的较低烷氧基团,COOX基团,或如果j>1,还表示基团##STR5## 其中k和m相同或不同,表示数字0或2,l表示数字1或2,n和w相同或不同,表示数字0或1,其中n和w只能表示数字1,如果k和m表示数字2,X表示氢原子和/或金属离子当量,及其与生理上无害的有机碱形成的盐,是用于核磁共振成像的有价值的络合剂、络合物和络合盐。