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Mun J, Jabbar AA, Devi NS, Yin S, Wang Y, Tan C, Culver D, Snyder JP, Van Meir EG, Goodman MM. Design and in vitro activities of N-alkyl-N-[(8-R-2,2-dimethyl-2H-chromen-6-yl)methyl]heteroarylsulfonamides, novel, small-molecule hypoxia inducible factor-1 pathway inhibitors and anticancer agents. J Med Chem 2012; 55:6738-50. [PMID: 22746274 PMCID: PMC3756490 DOI: 10.1021/jm300752n] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The hypoxia inducible factor (HIF) pathway is an attractive target for cancer, as it controls tumor adaptation to growth under hypoxia and mediates chemotherapy and radiation resistance. We previously discovered 3,4-dimethoxy-N-[(2,2-dimethyl-2H-chromen-6-yl)methyl]-N-phenylbenzenesulfonamide as a novel, small-molecule HIF-1 pathway inhibitor in a high-throughput cell-based assay, but its in vivo delivery is hampered by poor aqueous solubility (0.009 μM in water; log P(7.4) = 3.7). Here we describe the synthesis of 12 N-alkyl-N-[(8-R-2,2-dimethyl-2H-chromen-6-yl)methyl]heteroarylsulfonamides, which were designed to possess optimal lipophilicities and aqueous solubilities by in silico calculations. Experimental log P(7.4) values of 8 of the 12 new analogs ranged from 1.2-3.1. Aqueous solubilities of three analogs were measured, among which the most soluble N-[(8-methoxy-2,2-dimethyl-2H-chromen-6-yl)methyl]-N-(propan-2-yl)pyridine-2-sulfonamide had an aqueous solubility of 80 μM, e.g., a solubility improvement of ∼9000-fold. The pharmacological optimization had limited impact on drug efficacy as the compounds retained IC(50) values at or below 5 μM in our HIF-dependent reporter assay.
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Affiliation(s)
- Jiyoung Mun
- Department of Radiology and imaging sciences, Emory University CSI, Wesley Woods Health Center, 1841 Clifton Road, NE, Atlanta, GA 30329
| | - Adnan Abdul Jabbar
- Hematology and Medical Oncology, Emory University School of Medicine, Emory University, Atlanta, GA 30322
| | | | - Shaoman Yin
- Department of Neurosurgery, Emory University, Atlanta, GA 30322
| | - Yingzhe Wang
- Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, Atlanta, GA 30341
| | - Chalet Tan
- Department of Pharmaceutical Sciences, Mercer University College of Pharmacy, Atlanta, GA 30341
| | - Deborah Culver
- Emory Institute for Drug Discovery, Emory University, Atlanta, Georgia 30322
| | - James P. Snyder
- Emory Institute for Drug Discovery, Emory University, Atlanta, Georgia 30322
- Department of Chemistry, Emory University, Atlanta, Georgia, 30322
| | - Erwin G. Van Meir
- Department of Neurosurgery, Emory University, Atlanta, GA 30322
- Hematology and Medical Oncology, Emory University School of Medicine, Emory University, Atlanta, GA 30322
- Winship Cancer Institute, Emory University, Atlanta, GA 30322
| | - Mark M. Goodman
- Department of Radiology and imaging sciences, Emory University CSI, Wesley Woods Health Center, 1841 Clifton Road, NE, Atlanta, GA 30329
- Winship Cancer Institute, Emory University, Atlanta, GA 30322
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