Meso-monoiodo-substituted tetramacrocyclic compounds and methods for making and using the same

Abstract From the Canadian patent

A meso-monoiodo-substituted tetramacrocyclic compound having formula (I) wherein: each of A through D is independently a 5-membered nitrogen-, containing ring having the members necessary to compmlete a porphyrin chlorin, bacteriochlorin or isobacteriochlorin nucleus; R1 through R8 are independently a hydrogen atom, a lower alkyl group a lower alkyl carboxylic , acid or acid ester group keto, hydroxy, nitro, amino, or a group that taken , together with another ring, ring substituent or meso-substituent forms a , fused 5- or 6-membered ring; and each of S1 through S3 is H substituted or , unsubstituted alkyl, substituted or unsubstituted cycloalkyl a substituted or , unsubstituted aromatic …