A porphyrin compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each --CH.dbd.CH.sub.2, --CH.sub.2 CH.sub.3, --CH(O-lower alkanoyl)CH.sub.3, --CH(OR)CH.sub.3 or --CH(O-lower alkylene-OR)CH.sub.3 ; R.sub.3 is --H, --COOH, --COO-lower alkyl, --COO-lower alkylene-OR or --COO-lower alkylene-OOC-Z; R.sub.4 is --H, -lower alkyl or -lower alkylene-OR; R is --H, -lower alkyl or a residue of a polyfunctional carboxyl compound excluding a hydrogen atom therefrom; Z is a residue of the compound of the formula (I) excluding R.sub.3 therefrom; A is --CH.sub.2 -- or --CO--; and the dotted line from the gamma-position indicates no bonding or a single direct bond; and the dotted line between the 7- and 8-positions indicates the presence of a single bond or a double bond; and its complexes with a metal(s) in the porphine skeleton and/or at the residue of the polyfuntional carboxyl compound, at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 being a group containing R which represents the residue of the polyfunctional carboxyl compound and R.sub.1 being capable of representing 1-iodoethyl in addition to said meanings when R.sub.3 is --COO-lower alkylene-OOC-Z, which shows a high accumulation in the locus of cancer with quick excretion from normal tissues.
一种公式为:##STR1##的
卟啉化合物,其中R.sub.1和R.sub.2分别为--CH.dbd.CH.sub.2,--CH.sub.2 CH.sub.3,--CH(O-低烷酰基)CH.sub.3,--CH(OR)CH.sub.3或--CH(O-低烷基-OR)CH.sub.3; R.sub.3为--H,--COOH,--COO-低烷基,--COO-低烷基-OR或--COO-低烷基- OOC-Z; R.sub.4为--H,-低烷基或-低烷基-OR; R为--H,-低烷基或来自多官能
羧酸化合物的残基,但不包括其中的氢原子; Z是公式(I)中除R.sub.3外的残基; A为--CH.sub.2--或--CO--; 而且从伽马位点的虚线表示没有结合或单个直接键; 7位和8位之间的虚线表示存在单键或双键; 以及其与
卟啉骨架和/或多官能
羧酸化合物残基中的
金属的配合物,其中R.sub.1,R.sub.2,R.sub.3和R.sub.4中至少一个是含有R的群,R代表多官能
羧酸化合物的残基,当R.sub.3为--COO-低烷基- OOC-Z时,R.sub.1能够表示1-
碘乙基除了上述意义之外,该化合物在癌症部位具有高积累并从正常组织中快速排泄。