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Porphyrin Based neuton capture agents for cancer therapy

United States Patent

June 27, 2006
View the Complete Patent at the US Patent & Trademark Office
The invention describes the synthesis of a panel of novel carbon-carbon linked carboranyl-containing 5,10,15,20-tetraphenylporphyrins bearing 25 44% boron by weight. In certain embodiments, a phenyl porphyrin compound has a carboranyl group attached to the phenyl group by a carbon-carbon linkage, wherein the phenyl group corresponds to the following formula ##STR00001## where R7 through R11 are hydrogen, a carboranyl group, or are selected from the group consisting of hydroxyl, NMe.sub.3.sup.+, PMePh.sub.2.sup.+, PO(OH).sub.2, SO.sub.3H, COOH, and NH.sub.2. In this embodiment, the carboranyl group is attached to the phenyl group by a carbon-carbon linkage, either one or two of R7 through R11 are other than hydrogen; and the phenyl porphyrin compound contains at least one phenyl group having at least one of said carboranyl groups.
Vicente; Maria Da Graca H. (Baton Rouge, LA), Shetty; Shankar Jayaram (Maharastra, IN), Jaquinod; Laurent (Davis, CA), Smith; Kevin M. (Baton Rouge, LA)
The Regents of the University of California (Oakland, CA)
10/ 258,948
May 9, 2001
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under Grant No. 98ER62633, awarded by the Department of Energy. The Government has certain rights to this invention.