Water soluble texaphyrin metal complex preparation
Date
1999-11-30
Authors
Jonathan L. Sessler
Gregory W. Hemmi
Tarak D. Mody
Journal Title
Journal ISSN
Volume Title
Publisher
United States Patent and Trademark Office
Abstract
The present invention is directed to methods for synthesizing water soluble hydroxy-substituted texaphyrins retaining lipophilicity. The synthesis comprises condensing a diformyltripyrrole with an ortho-phenylenediamine to give a nonaromatic texaphyrin having at least one hydroxy substituent, and oxidizing the condensation product to form an aromatic texaphyrin metal complex having at least one hydroxy substituent. These expanded porphyrin-like macrocycles may be used for magnetic resonance imaging and for photodynamic therapy in the treatment of atheroma and tumors.