申请人:Nycomed Imaging AS
公开号:US05599522A1
公开(公告)日:1997-02-04
A radical compound of formula Ia .C(Ar.sup.12).sub.3 (Ia) wherein: each Ar.sup.12, which may be the same or different, represents a 6-membered carbocyclic, at least one group Ar.sup.12 being a group Ar.sup.1 ; each group Ar.sup.1 represents a 6-membered ring optionally substituted at the or any ortho carbon by a group R.sup.1, R.sup.2, R.sup.3 or R.sup.4, at the or any meta carbon by a group R.sup.2 or R.sup.3, and at any para carbon by a group R.sup.1, R.sup.2, R.sup.3 or R.sup.4, with the proviso that no more than two ring carbons are unsubstituted; each of R.sup.1, R.sup.2, R.sup.3 or R.sup.4, which may be the same or different, independently represents a group of formula --M, --XM, --XAr.sup.2 or --Ar.sup.2 ; M represents a water solubilizing group, each group X, which may be the same or different, represents an oxygen or sulphur atom or a NH or CH.sub.2 group.
化合物Ia的基团式为.C(Ar.sup.12).sub.3 (Ia),其中:每个Ar.sup.12,可能相同或不同,代表一个6-成员的碳环,至少一个Ar.sup.12基团是Ar.sup.1基团;每个Ar.sup.1基团代表一个6-成员的环,可以在任何邻位碳上或任何一个正位碳上由R.sup.1、R.sup.2、R.sup.3或R.sup.4基团取代,在任何对位碳上由R.sup.1、R.sup.2、R.sup.3或R.sup.4基团取代,但不超过两个环碳未取代;每个R.sup.1、R.sup.2、R.sup.3或R.sup.4,可能相同或不同,独立地代表公式--M、--XM、--XAr.sup.2或--Ar.sup.2的基团;M代表水溶解基团,每个X基团,可能相同或不同,代表氧、硫或NH或CH.sub.2基团的原子。