1
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Structural description, IR, TGA, antiradical, HRP activity inhibition and molecular docking exploration of N-cyclohexyl-N-tosylformamide. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Design, Synthesis, and Antitumor Activity Evaluation of Novel Acyl Sulfonamide Spirodienones. Bioorg Med Chem 2022; 60:116626. [DOI: 10.1016/j.bmc.2022.116626] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 11/17/2022]
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3
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Discovery of pyridine- sulfonamide hybrids as a new scaffold for the development of potential VEGFR-2 inhibitors and apoptosis inducers. Bioorg Chem 2021; 111:104842. [PMID: 33798847 DOI: 10.1016/j.bioorg.2021.104842] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/10/2021] [Accepted: 03/16/2021] [Indexed: 12/23/2022]
Abstract
New sulfonamide derivatives have been synthesized and tested as antitumor agents. All newly synthesized compounds were tested in vitro against 60 lines of human cancer cells. Compound VIIb shows broad-spectrum activity with a mean inhibition value of 91.67% against all cell lines. It exhibited potent anticancer activity with GI50 values of 1.06-8.92 μM relative to most of the tested cancer cell lines. Compound VIIb has been tested for enzyme inhibition activity toward vascular endothelial growth factor receptor 2, where VEGFR-2 was potently inhibited at a lower IC50 value of 3.6 μM, compared with sorafenib (IC50 = 4.8 μM). Hybrid VIIb was also able to induce cell cycle disturbance and apoptosis in Renal UO-31 cells, as shown by DNA flow cytometry and Annexin V-FITC/PI assays. It has also revealed lower Bcl-2 protein expression anti-apoptotic levels and higher BAX, p53, and caspases 3 expression levels.
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4
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Traceless selenocarboxylates for the one-pot synthesis of amides and derivatives. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Visible-Light-Promoted Cross-Coupling Reactions of Aryldiazonium Salts with S-Methyl- d3 Sulfonothioate or Se-Methyl- d3 Selenium Sulfonate: Synthesis of Trideuteromethylated Sulfides, Sulfoxides, and Selenides. Org Lett 2020; 22:9128-9132. [PMID: 33147971 DOI: 10.1021/acs.orglett.0c03562] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel visible-light-photocatalytic deuterated thiomethylation/methylselenation of aryldiazonium salts utilizing S/Se-methyl-d3 sulfonothioate has been developed. The mild conditions and the various functional groups provide a green protocol for the efficient and rapid introduction of the S-CD3 or Se-CD3 group with useful levels of deuterium content (>91% D). Trideuteromethyl sulfoxides have also been successfully chemoselectively observed by simple atmospheric changes under photocatalytic conditions.
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6
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Sulfoximines as Rising Stars in Modern Drug Discovery? Current Status and Perspective on an Emerging Functional Group in Medicinal Chemistry. J Med Chem 2020; 63:14243-14275. [DOI: 10.1021/acs.jmedchem.0c00960] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Synthesis and Biochemical Evaluation of Noncyclic Nucleotide Exchange Proteins Directly Activated by cAMP 1 (EPAC1) Regulators. J Med Chem 2020; 63:5159-5184. [PMID: 32340447 DOI: 10.1021/acs.jmedchem.9b02094] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Exchange proteins directly activated by cAMP (EPAC) play a central role in various biological functions, and activation of the EPAC1 protein has shown potential benefits for the treatment of various human diseases. Herein, we report the synthesis and biochemical evaluation of a series of noncyclic nucleotide EPAC1 activators. Several potent EPAC1 binders were identified including 25g, 25q, 25n, 25u, 25e, and 25f, which promote EPAC1 guanine nucleotide exchange factor activity in vitro. These agonists can also activate EPAC1 protein in cells, where they exhibit excellent selectivity toward EPAC over protein kinase A and G protein-coupled receptors. Moreover, 25e, 25f, 25n, and 25u exhibited improved selectivity toward activation of EPAC1 over EPAC2 in cells. Of these, 25u was found to robustly inhibit IL-6-activated signal transducer and activator of transcription 3 (STAT3) and subsequent induction of the pro-inflammatory vascular cell adhesion molecule 1 (VCAM1) cell-adhesion protein. These novel EPAC1 activators may therefore act as useful pharmacological tools for elucidation of EPAC function and promising drug leads for the treatment of relevant human diseases.
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8
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Systematic functional identification of cancer multi-drug resistance genes. Genome Biol 2020; 21:27. [PMID: 32028983 PMCID: PMC7006212 DOI: 10.1186/s13059-020-1940-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/20/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Drug resistance is a major obstacle in cancer therapy. To elucidate the genetic factors that regulate sensitivity to anti-cancer drugs, we performed CRISPR-Cas9 knockout screens for resistance to a spectrum of drugs. RESULTS In addition to known drug targets and resistance mechanisms, this study revealed novel insights into drug mechanisms of action, including cellular transporters, drug target effectors, and genes involved in target-relevant pathways. Importantly, we identified ten multi-drug resistance genes, including an uncharacterized gene C1orf115, which we named Required for Drug-induced Death 1 (RDD1). Loss of RDD1 resulted in resistance to five anti-cancer drugs. Finally, targeting RDD1 leads to chemotherapy resistance in mice and low RDD1 expression is associated with poor prognosis in multiple cancers. CONCLUSIONS Together, we provide a functional landscape of resistance mechanisms to a broad range of chemotherapeutic drugs and highlight RDD1 as a new factor controlling multi-drug resistance. This information can guide personalized therapies or instruct rational drug combinations to minimize acquisition of resistance.
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9
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Palladium‐Catalyzed
ortho
‐Benzoylation of Sulfonamides through C−H Activation: Expedient Synthesis of Cyclic
N
‐Sulfonyl Ketimines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900989] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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10
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11
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N-Sulfonyl acetylketenimine as a highly reactive intermediate for synthesis of N-Aroylsulfonamides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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13
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Co-Catalyzed Synthesis of N-Sulfonylcarboxamides from Carboxylic Acids and Sulfonyl Azides. J Org Chem 2018; 83:9364-9369. [DOI: 10.1021/acs.joc.8b01300] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Supramolecular architectures in N-(4-bromobenzoyl)-arylsulfonamides: crystal structures and Hirshfeld surface analysis. Z KRIST-CRYST MATER 2017. [DOI: 10.1515/zkri-2016-2008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A detailed analysis of the molecular packing of five N-(4-bromobenzoyl)-substituted benzenesulfonamides, i-X~4-Br (1–5) [i-X=H, 2-CH3, 4-CH3, 2-Cl, 4-Cl] is presented. The intermolecular interactions and the packing patterns are evaluated along with an analysis of their Hirshfeld surfaces and fingerprint plots (FP). The crystals feature molecular self-assembly through N–H···O hydrogen-bonds forming three types of supramolecular synthon:
C
1
1
(
4
)
${\rm{C}}_1^1(4)$
chain,
R
4
4
(
16
)
${\rm{R}}_4^4(16)$
tetramer and
R
2
2
(
8
)
${\rm{R}}_2^2(8)$
ring. These molecular assemblies extend to form one-dimensional (1D), 2D or 3D supramolecular architectures via diverse intermolecular interactions. A study of 33 i-X~4-Y (Y=H, CH3, OCH3, NO2, F, Cl, Br) structures shows the substituent on the sulfonamide ring modulates the intermolecular interactions and the subsequent supramolecular architectures drastically, with the fluoro- and bromo-substituted analogues providing distinctive self-assemblies. The
R
4
4
(
16
)
${\rm{R}}_4^4(16)$
synthon produced by N–H···O hydrogen-bonds in the 4-CH3~4-Br derivative is a rare phenomenon amongst a set of 74 i-X~j-Y structures.
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15
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Synthesis of a Sulfonimidamide-Based Analog of Tasisulam and Its Biological Evaluation in the Melanoma Cell Lines SKMel23 and A375. Skin Pharmacol Physiol 2016; 29:281-290. [PMID: 28013301 DOI: 10.1159/000453042] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/01/2016] [Indexed: 12/11/2022]
Abstract
Tasisulam is a promising antitumor agent with complex pharmacology, which is used as an antiproliferative agent in patients with metastatic melanoma and other solid tumors. Phase 2 melanoma studies showed promising results but had to be stopped because of insufficient tasisulam clearance leading to toxic side effects. To reduce the negative effects of tasisulam, we synthesized a novel sulfonimidamide-based analog to evaluate its antiproliferative effects in comparison to the original compound by performing a cell proliferation assay in melanoma cell lines SKMel23 and A375. The results revealed that the analog had inhibitory effects on the proliferation comparable to tasisulam in both investigated cell lines. These results could contribute to a reduced toxicity of tasisulam and lead to further clinical trials in metastatic melanoma.
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16
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Synthesis and X-ray structure analysis of cytotoxic heptacoordinate sulfonamide salan titanium(IV)-bis-chelates. Dalton Trans 2016; 44:16475-85. [PMID: 26325575 DOI: 10.1039/c5dt01618e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of novel sulfonamide substituted heteroleptic salan titanium(IV)-bis-chelates complexed to 2,6-pyridinedicarboxylic acid were synthesized, structurally characterized and evaluated for their anticancer activity against two human carcinoma cell lines. All cytotoxic complexes showed complete inhibition of cell growth at active concentration, two complexes based on pyrrolidine and azepane substituted sulfonamides displayed IC50 values below 1.7 μM and are more cytotoxic than cisplatin in both tested cell lines. The azepane substituted complex [L3Ti(dipic)] exhibited excellent activity with an IC50 value of 0.5 ± 0.1 μM in Hela S3 and 1.0 ± 0.1 μM in Hep G2.
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17
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Investigation of the crystal structures and Hirshfeld surfaces of three closely related N-(2-fluorobenzoyl)-arylsulfonamides. Z KRIST-CRYST MATER 2016. [DOI: 10.1515/zkri-2016-0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The investigation of the crystal structures of three closely related sulfonamides, namely N-(2-fluorobenzoyl)-2-methylbenzenesulfonamide (I), N-(2-fluorobenzoyl)-4-methylbenzenesulfonamide (II) and N-(2-fluorobenzoyl)-2-chlorobenzenesulfonamide (III) by analysing intermolecular interactions and the packing patterns, and also by Hirshfeld surface analyses is presented. Compound (I) has a three-dimensional (3D) network, in which N–H···O and C–H···F chains build up two-dimensional (2D) arrays, which are extended into a 3D network through C–H···π interactions. In (II), alternating N–H···O and C–H···O rings form one-dimensional (1D) ribbons, which are interconnected by C–H···π interactions to build a 2D network. In (III), 2D sheets comprising N–H···O rings, C–H···π chains, Cl···F and F···F contacts are stacked by π···π interactions to form a 3D network. Hirshfeld surface analyses, comprising dnorm surfaces, curvedness and 2D fingerprint (FP) plots, for all three molecules were also conducted to verify the importance of the different intermolecular interactions.
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18
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19
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Synthesis, Molecular Structure, Metabolic Stability and QSAR Studies of a Novel Series of Anticancer N-Acylbenzenesulfonamides. Molecules 2015; 20:19101-29. [PMID: 26506328 PMCID: PMC6332020 DOI: 10.3390/molecules201019101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/01/2015] [Accepted: 10/12/2015] [Indexed: 11/22/2022] Open
Abstract
A series of novel N-acyl-4-chloro-5-methyl-2-(R1-methylthio)benzenesulfonamides 18–47 have been synthesized by the reaction of N-[4-chloro-5-methyl-2-(R1-methylthio)benzenesulfonyl]cyanamide potassium salts with appropriate carboxylic acids. Some of them showed anticancer activity toward the human cancer cell lines MCF-7, HCT-116 and HeLa, with the growth percentages (GPs) in the range from 7% to 46%. Quantitative structure-activity relationship (QSAR) studies on the cytotoxic activity of N-acylsulfonamides toward MCF-7, HCT-116 and HeLa were performed by using topological, ring and charge descriptors based on the stepwise multiple linear regression technique (MLR). The QSAR studies revealed three predictive and statistically significant models for the investigated compounds. The results obtained with these models indicated that the anticancer activity of N-acylsulfonamides depends on topological distances, number of ring system, maximum positive charge and number of atom-centered fragments. The metabolic stability of the selected compounds had been evaluated on pooled human liver microsomes and NADPH, both R1 and R2 substituents of the N-acylsulfonamides simultaneously affected them.
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20
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Mechanistic Study of a Photocatalyzed CS Bond Formation Involving Alkyl/Aryl Thiosulfate. Chemistry 2015; 21:16059-65. [DOI: 10.1002/chem.201502951] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Indexed: 11/11/2022]
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21
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Investigation of the crystal structures of N-(4-fluorobenzoyl)benzenesulfonamide and N-(4-fluoro-benzoyl)-4-methylbenzenesulfonamide. Z KRIST-CRYST MATER 2015. [DOI: 10.1515/zkri-2014-1832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The crystal structures of two closely related compounds, namely, N-(4-fluorobenzoyl)-benzenesulfonamide (I) and N-(4-fluorobenzoyl)-4-methylbenzenesulfonamide (II) are investigated by analysing the packing patterns and intermolecular interactions, and also by Hirshfeld surface analysis. The crystal structure of each of (I) and (II) displays a two-dimensional architecture. Hirshfeld surfaces comprising dnorm surface and 2D fingerprint plots were analysed for both molecules in order to understand the relationship between the crystal structures. The analysis shows that the lengths of the observed hydrogen bonds and other intermolecular interactions in (II) are relatively shorter than those observed in (I). Further, the analysis demonstrates the predominant participation of the sulfonyl-O atom and the carbonyl-O atom as the hydrogen bond acceptors in (I) and (II), respectively.
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22
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Synthesis of Vinyl- and Aryl-Acyl Sulfonimidamides Through Pd-Catalyzed Carbonylation Using Mo(CO)6as ex situ CO Source. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403148] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Conformational change in a urea catalyst induced by sodium cation and its effect on enantioselectivity of a Friedel-Crafts reaction. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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A phase I study of tasisulam sodium using an albumin-tailored dose in Japanese patients with advanced solid tumors. Cancer Chemother Pharmacol 2013; 71:991-8. [DOI: 10.1007/s00280-013-2092-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 01/12/2013] [Indexed: 11/24/2022]
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25
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26
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Synthesis and in vitro activity of novel 2-(benzylthio)-4-chloro-5-(1,3,4-oxadiazol-2-yl)benzenesulfonamide derivatives. MONATSHEFTE FUR CHEMIE 2012; 143:975-984. [PMID: 26166867 PMCID: PMC4494775 DOI: 10.1007/s00706-012-0732-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Accepted: 01/27/2012] [Indexed: 11/18/2022]
Abstract
ABSTRACT Two series of novel 4-chloro-2-(benzylthio)-5-(1,3,4-oxadiazol-2-yl)benzenesulfonamides and their N-aroyl derivatives have been synthesized and evaluated for in vitro anticancer activity against the full NCI-60 cell line panel. Most of the compounds exhibited antiproliferative activity. Among them a compound bearing an N-(thien-2-ylcarbonyl) moiety showed broad-spectrum activity with 50% growth inhibition (GI50) values in the range of 2.02-7.82 μM over 50 cell lines. GRAPHICAL ABSTRACT .
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27
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Design, synthesis and biological evaluation of N-phenylsulfonylnicotinamide derivatives as novel antitumor inhibitors. Bioorg Med Chem 2012; 20:1411-6. [PMID: 22277588 DOI: 10.1016/j.bmc.2012.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 12/31/2011] [Accepted: 01/02/2012] [Indexed: 11/24/2022]
Abstract
A series of novel N-phenylsulfonylnicotinamide derivatives (1-24) have been synthesized and evaluated as potential EGFR tyrosine kinase (TK) inhibitors. Among all the compounds, compound 10 (5-bromo-N-(4-chlorophenylsulfonyl)nicotinamide) showed the most potent growth inhibitory activity against EGFR TK and antiproliferative activity of MCF-7 cancer cell line in vitro, with IC(50) value of 0.09 and 0.07 μM. Docking simulation was performed to insert compound 10 into the EGFR TK active site to determine the probable binding model. Based on the preliminary results, compound 10 with potent inhibitory activity to tumor growth may be a potential anticancer agent.
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28
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trans-Dichloro(η 2-ethylene) (N-3-pyridinylmethanesulfonamide)platinum(II). Crystal structure, spectroscopic, and thermoanalytical characterization, and cytotoxicity assays. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.659729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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29
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30
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Synthesis and apoptosis inducing ability of new anilino substituted pyrimidine sulfonamides as potential anticancer agents. Eur J Med Chem 2011; 46:5817-24. [DOI: 10.1016/j.ejmech.2011.09.039] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 09/21/2011] [Accepted: 09/21/2011] [Indexed: 11/16/2022]
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31
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Tasisulam sodium, an antitumor agent that inhibits mitotic progression and induces vascular normalization. Mol Cancer Ther 2011; 10:2168-78. [PMID: 21903607 DOI: 10.1158/1535-7163.mct-11-0323] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
LY573636-sodium (tasisulam) is a small molecule antitumor agent with a novel mechanism of action currently being investigated in a variety of human cancers. In vitro, tasisulam induced apoptosis via the intrinsic pathway, resulting in cytochrome c release and caspase-dependent cell death. Using high content cellular imaging and subpopulation analysis of a wide range of in vitro and in vivo cancer models, tasisulam increased the proportion of cells with 4N DNA content and phospho-histone H3 expression, leading to G(2)-M accumulation and subsequent apoptosis. Tasisulam also blocked VEGF, epidermal growth factor, and fibroblast growth factor-induced endothelial cell cord formation but did not block acute growth factor receptor signaling (unlike sunitinib, which blocks VEGF-driven angiogenesis at the receptor kinase level) or induce apoptosis in primary endothelial cells. Importantly, in vivo phenocopying of in vitro effects were observed in multiple human tumor xenografts. Tasisulam was as effective as sunitinib at inhibiting neovascularization in a Matrigel plug angiogenesis assay in vivo and also caused reversible, non G(2)-M-dependent growth arrest in primary endothelial cells. Tasisulam also induced vascular normalization in vivo. Interestingly, the combination of tasisulam and sunitinib significantly delayed growth of the Caki-1 renal cell carcinoma model, whereas neither agent was active alone. These data show that tasisulam has a unique, dual-faceted mechanism of action involving mitotic catastrophe and antiangiogenesis, a phenotype distinct from conventional chemotherapies and published anticancer agents.
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32
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Metronidazole acid acyl sulfonamide: a novel class of anticancer agents and potential EGFR tyrosine kinase inhibitors. Bioorg Med Chem 2011; 19:6069-76. [PMID: 21920766 DOI: 10.1016/j.bmc.2011.08.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 08/18/2011] [Accepted: 08/18/2011] [Indexed: 10/17/2022]
Abstract
A series of novel metronidazole derivatives were recently reported as potent anticancer agents targeting EGFR and HER-2 by our group [Qian, Y.; Zhang, H. J.; Zhang, H.; Xu, C.; Zhao, J.; Zhu, H. L. Bioorg. Med. Chem.2010, 18, 4991]. Based on the previous results, we designed and synthesized a new series of metronidazole acid acyl sulfonamide derivatives and a new series of phenylacetyl benzenesulfonamide derivatives and their anticancer activities were evaluated as potential EGFR and HER-2 kinase inhibitors. Among all the compounds, compound 12 displayed the most potent inhibitory activity EGFR and HER-2 (IC(50)=0.39 μM for EGFR and IC(50)=1.53 μM for HER-2) and it also showed the most potent growth inhibitory activity against A549 and B16-F10 cancer cell line in vitro, with an IC(50) value of 1.26 μg/mL for A549 and 0.35 μg/mL for B16-F10. Docking simulation was further performed to position compound 12 into the EGFR active site to determine the probable binding model.
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33
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Recognition properties of carboxylic acid bioisosteres: anion binding by tetrazoles, aryl sulfonamides, and acyl sulfonamides on a calix[4]arene scaffold. J Org Chem 2011; 76:3733-41. [PMID: 21462934 DOI: 10.1021/jo200031u] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tetrazoles and acyl sulfonamides are functional groups that are common in medicinal chemistry but virtually unexplored as recognition elements in supramolecular chemistry. We report here on the anion binding properties of these highly acidic N-H functional groups. We have prepared two new calixarene-based tetrazole-containing hosts, as well as new acetyl sulfonamide and benzoyl sulfonamide hosts. We also report on analogous hosts bearing the better-known aryl sulfonamide functional group as a point of comparison. We find that these hosts are competent anion binders and that the recognition of anions by these groups is highly dependent on their conformational preferences. We also report in detail on the preferred molecular shape of each acid bioisostere as determined by calculations and structural database surveys, and discuss how these shapes impact binding in the context of the reported hosts.
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34
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Ligand-based 3D-QSAR studies of diaryl acyl-sulfonamide analogues as human umbilical vein endothelial cells inhibitors stimulated by VEGF. Chem Biol Drug Des 2011; 77:288-94. [PMID: 21251234 DOI: 10.1111/j.1747-0285.2011.01084.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Diaryl acylsulfonamide derivatives were reported as Human Umbilical Vein Endothelial cell (HUVEC) inhibitors, stimulated by Vascular Endothelial Growth Factor (VEGF). VEGF has angiogenic property to cause colorectal cancer. A ligand-based 3D-QSAR technique was carried out on diaryl acylsulfonamide derivatives by using Comparative Molecular Field Analysis (CoMFA) studies to find relations between biological activities of inhibitors and their structures. In absence of binding mechanism for the ligand with VEGF receptor, current study hopes to shed some light on the inhibition mechanism of the ligands with HUVEC. 3D-QSAR technique was applied to a set of fifty ligands in order to facilitate the design of more potent inhibitors. However, the maximum cross-validated correlation coefficient value was found to be 0.417. The value is relatively low when compared to the usual acceptable cross-validated correlation coefficient, but no further improvements were observed by applying different available options. Therefore, the final model was used for further analysis. Additionally, the resulted CoMFA model was validated by an external set of 10 compounds yielding surprisingly, a satisfactory correlation coefficient value (r(2) (pred) ) 0.80. Moreover, the analysis of the individual generated 3D contours helped in understanding the possible structural modifications of molecules to improve the inhibitory potency.
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35
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Benzo[b]thiophene-6-carboxamide 1,1-dioxides: Inhibitors of human cancer cell growth at nanomolar concentrations. Bioorg Med Chem 2010; 18:5701-7. [PMID: 20615714 DOI: 10.1016/j.bmc.2010.06.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Revised: 06/01/2010] [Accepted: 06/04/2010] [Indexed: 11/30/2022]
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36
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Candidate Biomarkers of Response to an Experimental Cancer Drug Identified through a Large-scale RNA Interference Genetic Screen. Clin Cancer Res 2009; 15:5811-9. [DOI: 10.1158/1078-0432.ccr-09-0261] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Highly Efficient Iron(II) Chloride/N-Bromosuccinimide-Mediated Synthesis of Imides and Acylsulfonamides. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800668] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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38
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39
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Highly efficient ruthenium(II) porphyrin catalyzed amidation of aldehydes. Angew Chem Int Ed Engl 2008; 47:1138-40. [PMID: 18163374 DOI: 10.1002/anie.200704695] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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41
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Synthesis of novel 3-amino-2-(4-chloro-2-mercaptobenzenesulfonyl)-guanidine derivatives as potential antitumor agents. Eur J Med Chem 2007; 42:1218-25. [PMID: 17337095 DOI: 10.1016/j.ejmech.2007.01.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2006] [Revised: 01/12/2007] [Accepted: 01/16/2007] [Indexed: 01/01/2023]
Abstract
Novel 3-amino-2-(4-chloro-2-mercaptobenzenesulfonyl)guanidine derivatives have been synthesized as potential anticancer agents. The in vitro antitumor activity of these compounds has been evaluated in the US National Cancer Institute (NCI), and relationships between structure and antitumor activity are discussed. The prominent compound was 1-allyl-2-[4-chloro-5-(4-chlorophenylcarbamoyl)-2-methylthiobenzenesulfonyl]-3-(5-nitrofurfurylideneamino)guanidine (8) with remarkable activity against 21 human tumor cell lines representing leukemia, lung, colon, melanoma, ovarian, renal, prostate and breast (GI(50)=0.3-3.0microM), and selectivity toward leukemia RPMI-8226 cell line (GI(50)=0.3microM, TGI=1.4microM).
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42
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An expeditious and convenient synthesis of acylsulfonamides utilizing polymer-supported reagents. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.05.158] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Synthesis, structural characterization, and in vitro antitumor activity of novel N-(6-chloro-1,1-dioxo-1,4,2-benzodithiazin-3-yl)arylsulfonamides. Bioorg Med Chem 2007; 15:2560-72. [PMID: 17306551 DOI: 10.1016/j.bmc.2007.01.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2006] [Revised: 01/25/2007] [Accepted: 01/31/2007] [Indexed: 11/27/2022]
Abstract
A new series of N-(6-chloro-1,1-dioxo-1,4,2-benzodithiazin-3-yl)arylsulfonamides 23-48 have been synthesized as potential anticancer agents. All compounds were screened for their cytotoxic activity against six human tumor cell lines. The selected compounds 23-27, 30, 31, 33, 35, 38, 42, 45, and 46 were further tested at the US National Cancer Institute for their in vitro activities against a panel of 53-59 human tumor cell lines. The compounds 23-26, 30, 31, 33, 38, 42, 45, and 46 showed 50% growth inhibitory activity in low micromolar concentration (GI(50)=0.03-4.9 microM) against one or more human tumor cell lines (Table 3). The prominent compound with remarkable activity (GI(50)=0.03 microM, TGI=1.3 microM) and selectivity toward melanoma UACC-257 cell line was N-(6-chloro-7-cyano-1,1-dioxo-1,4,2-benzodithiazin-3-yl)-N-(phenyl)-5-bromothiophene-2-sulfonamide 46.
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44
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Synthesis and antitumor evaluation of a novel series of triaminotriazine derivatives. Bioorg Med Chem 2007; 15:1815-27. [PMID: 17157510 DOI: 10.1016/j.bmc.2006.11.028] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2006] [Revised: 11/16/2006] [Accepted: 11/17/2006] [Indexed: 11/19/2022]
Abstract
A series of triaminotriazine derivatives (compounds 5a-f, 6a-x, and 7a-g) was designed, synthesized, and evaluated for their inhibition activities to colorectal cancer (CRC) cell lines (HCT-116 and HT-29). Most of the synthesized compounds demonstrated moderate anti-proliferatory effects on both HCT-116 and HT-29 cell lines at the concentration of 10 microM. The inhibitory activities against HCT-116 and HT-29 cell lines were discussed to develop the structure-activity relationships of this new series. Compounds 6l and 6o exhibited prominent inhibition activities toward HCT-116, with IC50s of 0.76 and 0.92 microM, respectively. The in vivo antitumor studies and pharmacokinetics of compound 6l showed that it might be a promising new hit for further development of antitumor agents.
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45
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46
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Synthesis of a new class of 2-anilino substituted nicotinyl arylsulfonylhydrazides as potential anticancer and antibacterial agents. Bioorg Med Chem 2007; 15:1004-13. [PMID: 17097292 DOI: 10.1016/j.bmc.2006.10.027] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2006] [Revised: 10/11/2006] [Accepted: 10/14/2006] [Indexed: 11/21/2022]
Abstract
A series of N'-1-[2-anilino-3-pyridyl]carbonyl-1-benzenesulfonohydrazide derivatives (7a-i) was synthesized and five of them were selected by the National Cancer Institute (NCI) and evaluated for their in vitro anticancer activity. Three of the investigated compounds 7d, 7f and 7g exhibited significant anticancer activity in the primary assay and further tested against a panel of 60 human tumour cell lines. Compound 7g showed 50% growth inhibitory activity in leukaemia, melanoma, lung cancer, colon cancer, renal cancer and breast cancer cells with GI(50) value of 3.2-9.6 microM. The synthesized compounds (7a-i) were also evaluated for their antibacterial activity against various Gram-positive and Gram-negative strains of bacteria. Most of these compounds showed better inhibitory activity in comparison to the standard drugs.
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47
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Mitochondrial permeability transition induced by novel pyridothiopyranopyrimidine derivatives: Potential new antimitochondrial antitumour agents. Biochem Pharmacol 2006; 72:1657-67. [PMID: 16982035 DOI: 10.1016/j.bcp.2006.07.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2006] [Revised: 07/28/2006] [Accepted: 07/31/2006] [Indexed: 01/12/2023]
Abstract
New pyridothiopyranopyrimidine derivatives (PTP1 and PTP2) were synthesised. Evaluation of the antiproliferative activity showed a significant capacity of the two compounds to inhibit cell growth. Investigation of the mechanism of action reveals that PTP1 interferes with the mitochondrial functions by inducing both swelling of the mitochondrial matrix and collapse of the electrical potential. These phenomena are fully prevented by typical inhibitors of the mitochondrial permeability transition, and are accompanied by the release of cytochrome c in the cytosol. The estimation of the redox state of thiol groups and glutathione suggests that the induction of permeability transition mediated by PTP1 is the result of an oxidative stress. The ability of cyclosporin A to prevent the antiproliferative effect of PTP1 indicates the induction of mitochondrial permeability transition as the molecular event responsible for the inhibition of cell growth. PTP1 also induces DNA fragmentation in intact cells. As regards PTP2, the presence of the p-toluensulphonamido group makes the lead chromophore unable to induce any effect on mitochondria.
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48
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Synthesis and biological activity of new 2-amino-8-chloro-5,5-dioxo[1,2,4]triazolo[2,3-b][1,4,2]benzodithiazines. Eur J Med Chem 2006; 41:633-9. [PMID: 16488515 DOI: 10.1016/j.ejmech.2005.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2005] [Revised: 11/29/2005] [Accepted: 11/30/2005] [Indexed: 11/30/2022]
Abstract
Two series of 1-(6-chloro-1,1-dioxo-1,4,2-benzodithiazin-3-yl)-4-arylsemicarbazides 6-17 and 2-arylamino-8-chloro-5,5-dioxo[1,2,4]triazolo[2,3-b][1,4,2]benzodithiazines 18-26 were prepared in order to evaluate their biological activity. Compounds 6 and 18-26 were tested for their in vitro cytotoxic potency against 12 human cancer cell lines. The compounds 6 and 19 were inactive, whereas triazolobenzodithiazines 18, 20-26 possess tumor growth inhibitory properties. The prominent methyl 8-chloro-2-(4-chlorophenylamino)-5,5-dioxo[1,2,4]triazolo[2,3-b][1,4,2]benzodithiazine-7-carboxylate (21) exhibited potency higher or comparable to cisplatin. Moreover, compounds 6, 9, 19 and 23-25 with structure similar to other chemotherapeutic agents were tested for their antibacterial activity and exhibited MIC and MBC against Staphylococcus aureus (3.9-31.5 microg ml).
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49
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Acyl sulfonamide anti-proliferatives. Part 2: Activity of heterocyclic sulfonamide derivatives. Bioorg Med Chem Lett 2005; 15:617-20. [PMID: 15664824 DOI: 10.1016/j.bmcl.2004.11.041] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2004] [Revised: 11/12/2004] [Accepted: 11/16/2004] [Indexed: 11/17/2022]
Abstract
The anti-proliferative activity of acylated heterocyclic sulfonamides is described in Vascular Endothelial Growth Factor-dependent Human Umbilical Vascular Endothelial Cells (VEGF-HUVEC) and in HCT116 tumor cells in a soft agar diffusion assay.
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