申请人:Schering Aktiengesellschaft
公开号:US04845090A1
公开(公告)日:1989-07-04
Diagnostic media suitable for NMR diagnoses contain compounds of Formula I ##STR1## wherein is a single bond or a double bond, X is the grouping --(CH.sub.2).sub.n -- or, if is a single bond, also the grouping --NHCO(CH.sub.2).sub.n -- wherein n means 0 to 4, m means the numbers 0, 1, or 2, R.sub.1 is an alkyl residue substituted by hydroxy groups, acyloxy groups and/or alkylidenedioxy groups, R.sub.2 has the same meanings as R.sub.1 or is a hydrogen atom or an alkyl residue, R.sub.3 and R.sub.4 are alkyl residues, and R.sub.5 and R.sub.6 are alkyl residues optionally substituted by hydroxy groups.
适用于核磁共振诊断的诊断介质包含Formula I的化合物,其中是单键或双键,X是基团--(CH.sub.2).sub.n --或者,如果是单键,也是基团--NHCO(CH.sub.2).sub.n --其中n表示0到4,m表示数字0、1或2,R.sub.1是被羟基、酰氧基和/或烷基二氧基基团取代的烷基残基,R.sub.2具有与R.sub.1相同的含义,或者是氢原子或烷基残基,R.sub.3和R.sub.4是烷基残基,R.sub.5和R.sub.6是烷基残基,可以选择地被羟基取代。