Abstract: Therapeutic ureido-sulfonamide compositions having compounds with the formula R-Q-Ar—SO2NH2 are disclosed, which compounds selectively inhibit CAIX and CAXII, and which are effective to inhibit hypoxic tumor growth, suppress metastases, and impair and deplete cancer stem cells in mammals.
Type:
Grant
Filed:
September 20, 2016
Date of Patent:
May 8, 2018
Assignee:
Welichem Biotech Inc.
Inventors:
Claudiu Supuran, Shoukat Dedhar, Paul C. McDonald, Fabrizio Carta
Abstract: Therapeutic ureido-sulfonamide compositions having compounds with the formula R-Q-Ar—SO2NH2 are disclosed, which compounds selectively inhibit CAIX and CAXII, and which are effective to inhibit hypoxic tumor growth, suppress metastases, and impair and deplete cancer stem cells in mammals.
Type:
Grant
Filed:
January 9, 2013
Date of Patent:
October 11, 2016
Assignee:
Welichem Biotech Inc.
Inventors:
Claudiu Supuran, Shoukat Dedhar, Paul C. McDonald, Fabrizio Carta
Abstract: The present invention provides novel dithiolopyrrolone compounds and their salts, which are useful as treatments for cancer and other proliferative diseases. The present invention also provides therapeutic compositions comprising particularly useful types of dithiolopyrrolones, the salts thereof, and methods of using the compounds within such types, particularly in treating proliferative diseases such as cancer.
Type:
Grant
Filed:
March 18, 2003
Date of Patent:
June 9, 2015
Assignee:
Welichem Biotech Inc.
Inventors:
Genhui Chen, Jianxiong Li, John Webster, Bin Li
Abstract: The present invention provides dithiolopyrrolone compounds of the general formula I, and their salts, wherein A is sulfur or carbon, and R1, R2, and R3 are selected from groups defined herein, and wherein when A is sulfur, then B is oxygen, and n=1 or 2, and when A is carbon, then B is oxygen or sulfur, and n=1. The compounds are useful for the prevention and treatment of microbial infections such as HIV infection, and for the treatment of blood disorders, such as neutropenia. In particular, the compounds are useful for the manufacture of medicaments for increasing white blood cells.
Abstract: The present invention provides novel methods of treating psoriasis, protein tyrosine kinase-associated disorders, inflammation, epidermal hyperproliferation, diabetes, immune and autoimmune diseases, eczema, and inflammatory bowel disease, inhibiting protein kinase, neutrophil activation, cell proliferation, tumour growth, metastasis, and the development of atheromatous plaque and restonosis, controlling angiogenesis, and preventing inflammatory bowel disease, using hydroxystilbenes and novel stilbene derivatives.
Type:
Grant
Filed:
December 3, 2007
Date of Patent:
January 11, 2011
Assignee:
Welichem Biotech Inc.
Inventors:
Genhui Chen, John M. Webster, Jianxiong Li, Kaji Hu, Jiang Zhu, Wei Liu
Abstract: The present invention provides pharmaceutical compositions containing hydroxystilbenes or their derivatives or analogues. The pharmaceutical compositions are useful for protein kinase inhibition, and for treatment of psoriasis, eczema and inflammation.
Type:
Application
Filed:
December 15, 2009
Publication date:
April 15, 2010
Applicant:
WELICHEM BIOTECH INC.
Inventors:
Genhui Chen, John M. Webster, Jianxiong Li, Kaji Hu, Wei Liu, Jiang Zhu
Abstract: The invention provides novel 1,2-diphenylethene derivatives and pharmaceutically acceptable salts thereof, the process for production of these compounds and their pharmaceutical composition and the use of these compounds as modulators of T-cells, neutrophils, macrophages and their associated cytokines as agents for treating immune, inflammatory and auto-immune diseases.
Type:
Application
Filed:
February 11, 2009
Publication date:
June 11, 2009
Applicant:
Welichem Biotech, Inc.
Inventors:
Genhui Chen, John Webster, Jianxiong Li, Wei Liu
Abstract: The present invention provides novel diphenyl ethene compounds and pharmaceutically-acceptable salts thereof. Also provided are methods for making the compounds of the invention as well as methods for the use thereof in the treatment of immune, inflammatory, and auto-immune diseases.
Abstract: The present invention provides novel methods of treating psoriasis, protein tyrosine kinase-associated disorders, inflammation, epidermal hyperproliferation, diabetes, immune and autoimmune diseases, eczema, and inflammatory bowel disease, inhibiting protein kinase, neutrophil activation, cell proliferation, tumour growth, metastasis, and the development of atheromatous plaque and restonosis, controlling angiogenesis, and preventing inflammatory bowel disease, using hydroxystilbenes and novel stilbene derivatives.
Type:
Application
Filed:
December 3, 2007
Publication date:
June 12, 2008
Applicant:
Welichem Biotech Inc.
Inventors:
Genhui Chen, John M. Webster, Jianxiong Li, Kaji Hu, Wei Liu, Jiang Zhu
Abstract: The present invention provides novel diphenyl ethene compounds and pharmaceutically-acceptable salts thereof. Also provided are methods for making the compounds of the invention as well as methods for the use thereof in the treatment of immune, inflammatory, and auto-immune diseases.
Type:
Grant
Filed:
July 15, 2004
Date of Patent:
January 22, 2008
Assignee:
Welichem Biotech Inc.
Inventors:
Genhui Chen, John M. Webster, Jianxiong Li, Kaji Hu, Wei Liu, Jiang Zhu
Abstract: Compounds, isolated from the bacteria Xenorhabdus bovienil, have antineoplastic activity. The invention provides pharmaceutical compositions containing the compounds and the methods for employing them as medicaments, particularly in the treatment of human and animal cancers.
Type:
Grant
Filed:
March 6, 2000
Date of Patent:
June 24, 2003
Assignee:
Welichem Biotech Inc.
Inventors:
John Malcolm Webster, Jianxiong Li, Genhui Chen
Abstract: The invention is drawn to novel antibiotics, XENORXIDES of formula shown below, wherein R1, R2=hydrogen, substituted or unsubstituted alkyl, cycloalkyl, acyl, aryl, aralkyl, or heterocyclyl group; R3=hydrogen, alkyl cycloalkyl, aralkyl or aryl group,
produced by bacterial symbiont Xenorhabdus bovienii and/or other Xenorhabdus species, and/or by oxidation of the corresponding dithiolopyrrolone derivatives with oxygen and Xenorhabdus species, and/or its cell-free filtrate, the additional salts thereof, the compositions thereof and their use as medicaments and/or agrochemicals, particularly in the treatment of infectious diseases involving microorganisms susceptible to them, including drug-resistant Staphylococcus.
Type:
Grant
Filed:
July 23, 1996
Date of Patent:
November 13, 2001
Assignee:
Welichem Biotech Inc.
Inventors:
John M. Webster, Jianxiong Li, Genhui Chen