beta,beta'-DIHYDROXY-MESO-SUBSTITUTED CHLORIN, ISOBACTERIOCHLORIN, BACTERIOCHLORIN AND METHOD FOR PRODUCING THESE SUBSTANCES FROM beta,beta'-NONSUBSTITUTED TETRAPYRROLIC MICROCYCLE

摘要

PROBLEM TO BE SOLVED: To obtain PDT photosensitizer compounds of new class having excellent biodistribution of medicine than that of a well-known compound and to provide an extremely practical and economic method for producing the compounds in a high yield by remarkable reduction of their position isomers and stereoisomers. SOLUTION: Concretely, this bacteriochlorin or isobacteriochlorin compound is represented by formula (I).