New compounds expanding the repertoire of compounds useful in photodynamic therapy are described. Monohydrobenzoporphyrins can be obtained in the triacid form or as esters with heteroatom-substituted alcohols, or as amides....http://www.google.es/patents/US5990149?utm_source=gb-gplus-sharePatente US5990149 - Class of benzoporphyrin derivative photoactive compounds
Class of benzoporphyrin derivative photoactive compounds
