Bionumerik Pharmaceuticals, Inc.

Pavankumar Nv Petluru

Frederick H Hausheer

Kochat Haridas

Dhanabalan Murali

Dasharatha Gauravaram Reddy

Qiuli Huang

Xinghai Chen

Kesavaram Narkunan

Shijie Yao

Zejun Xiao

Peddaiahgari Seetharamulu

P Seetharamulu

Disclosed herein are novel platinum-based complexes possessing one nitrile substituent group (mononitrile) covalently-bonded to the platinum, one or more nitrogen donor ligands capable of forming hydrogen bonds with the bases in DNA or RNA and leaving groups (i.e., Land L)which can be hydrolyzed iii vivo to active species, which can then form coordinate adducts with DNA or RNA at the Guanine or Adenine bases thereof. Also disclosed herein are the reaction schemes for the synthesis of said platinum complexes, as well as methods of treatment of various types of cancer by the administration of a pharmaceutically-effective dose of said novel platinum complexes.

Platinum complexes with mononitrile-containing ligands

Disclosed herein are novel platinum-based complexes possessing one nitrile substituent group (mononitrile) covalently-bonded to the platinum, one or more nitrogen donor ligands capable of forming hydrogen bonds with the bases in DNA or RNA and leaving groups (i.e., Land L) which can be hydrolyzed in vivo to active species, which can then form coordinate adducts with DNA or RNA at the Guanine or Adenine bases thereof. Also disclosed herein are the reaction schemes for the synthesis of said platinum complexes, as well as methods of treatment of various types of cancer by the administration of a pharmaceutically-effective dose of said novel platinum complexes.

This invention relates to novel derivatives of camptothecin, and will, particularly to derivatives having a substitution at the C-7 position, or at one of the C-9, C-10, C-11 or C-12 positions, or to disubstituted derivatives having a first substitution at C-7 and a second at one of C-9, C-10, C-11 or C-12. The invention also includes methods of using the compounds as Topoisomerase I inhibitors to treat patients with cancer. The invention also includes pharmaceutical formulations which consist of the novel compounds in solution or suspension with one or more pharmaceutical excipients or dilutes.

Highly lipophilic camptothecin derivatives

Novel compounds, formulations and methods of treating patients with cancer are provided for in this invention. The compounds are derivatives of camptothecin, and specifically relate to compounds having novel substitutions at the C-7 position of the camptothecin scaffold B-ring. The formula I compounds are highly lipophilic, lactone stable, do not require metabolic activation, and are potent antineoplastic compounds.

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San Antonio, TX, United States of America

Pavankumar Nv Petluru