Phthalocyanine photosensitizers for photodynamic therapy

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Silicon containing doai

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514183, 540128, 556413, C09B 4704, C09B 4708, C07F 718, A61K 3140

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active

051661977

ABSTRACT:
The present invention relates to a series of novel phthalocyanine compositions (or compounds) suitable for use as photosensitizers for photodynamic therapy. Specifically, the invention relates to a series of new aluminum (Al) and/or silicon (Si) phthalocyanines having substituted amine or quaternary ammonium axial ligands attached to the central metal, and the use of these new phthalocyanine compositions for the treatment of cancer through photosensitization. Moreover, the present invention is directed to the methods of preparing these compositions for use in photodynamic therapy.

REFERENCES:
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"A New Class of Mammalian Cell Photosensitizers with a Potential for Cancer Phototherapy", Int. J. Radiat. Biol. 47, 145-147, 1985, Ben-Hur et al.
"Activity of Phthalocyanine Photosensitizers against Human Glioblastoma in vitro", Neurosurgery, vol. 21, No. 4, pp. 468-473, 1987; Abernathy et al.
"Tissue Uptake, Distribution, and Potency of the Photoactivatable Dye Chloroaluminum Sulfonated . . . ", Cancer Res., 48, pp. 3040-3044, 1988; Chan et al.
"The Role of Singlet Oxygen in the Photohemolysis of Red Blood Cells Sensitizied . . . ", Photochem. Photobiol. 46, pp. 625-632, 1987; Sonoda et al.
"Evaluation of Sulofnated Aluminum Phthalocyanines for Use in Photochemotherapy", Cancer Letters, 44, pp. 7-15, 1989, Bommer et al.
"The Effect of Substituents on Phthalocyanine Phototoxicity", Photochem. Photobiol. 46, pp. 959-963, 1987, Rosenthal et al.
"Synthesis and Photocytoxicity of Some New Substituted Phthalocyanines" Photochem. Photobiol. 49, pp. 279-284, 1989; Leznoff et al.
Kane et al., Inorgamic Chemistry, vol. 90, 1970, pp. 1445-1448.
The Merck Manual, 15th Ed., 1987, Robert Berkow Ed., pp. 1219-1220, 1227.

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