Galectin recognized photosensitizers for photodynamic therapy

摘要

Purpurin-carbohydrate conjugates and their method of preparation and use for treatment of cancer cells. The conjugates have the general formula:wherein R6 and R7 taken together are =NR11 or are independently -OR11, where at least one R11 is preferably a mono or polysaccharide moiety and R1-R8 are various groups formed from carbon and hydrogen and optionally oxygen and nitrogen where R3 and R4 may together from a covalent bond.