Abstract

Chemical Research Center, Hungarian Academy of Sciences, Budapest 1025, Pusztaszerj ut 59-67, HungaryReceived June 13, 2011, Accepted July 16, 2011Key Words : Pyropheophorbide-a, Chlorophyll, Chlorin, Allomerization, Formylation, FunctionalizationThe major challenge in cancer therapy is the destruction ofmalignant cells while sparing the normal tissues. Amongvarious choices for cancer treatment, photodynamic therapy(PDT) has a unique place and being noninvasive in naturemakes it an increasingly desirable option. PDT is nowwidespread and is used clinically for treating various kindscancers.

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