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Wu Y, Lv B, Zhang Y, Gao P, Zhang M, Yuan Y. Ring opening of N-hydroxyphthalimide to construct phenylurea derivatives. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1919709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yinhui Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Bin Lv
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Yanan Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Pan Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Min Zhang
- Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Yu Yuan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
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Zubrytski DM, Elek GZ, Lopp M, Kananovich DG. Generation of Mixed Anhydrides via Oxidative Fragmentation of Tertiary Cyclopropanols with Phenyliodine(III) Dicarboxylates. Molecules 2020; 26:molecules26010140. [PMID: 33396847 PMCID: PMC7794720 DOI: 10.3390/molecules26010140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/24/2020] [Accepted: 12/26/2020] [Indexed: 11/20/2022] Open
Abstract
Oxidative fragmentation of tertiary cyclopropanols with phenyliodine(III) dicarboxylates in aprotic solvents (dichloromethane, chloroform, toluene) produces mixed anhydrides. The fragmentation reaction is especially facile with phenyliodine(III) reagents bearing electron-withdrawing carboxylate ligands (trifluoroacetyl, 2,4,6-trichlorobenzoyl, 3-nitrobenzoyl), and affords 95−98% yields of the corresponding mixed anhydride products. The latter can be straightforwardly applied for the acylation of various nitrogen, oxygen and sulfur-centered nucleophiles (primary and secondary amines, hydroxylamines, primary alcohols, phenols, thiols). Intramolecular acylation yielding macrocyclic lactones can also be performed. The developed transformation has bolstered the synthetic utility of cyclopropanols as pluripotent intermediates in diversity-oriented synthesis of bioactive natural products and their synthetic congeners. For example, it was successfully applied for the last-stage modification of a cyclic peptide to produce a precursor of a known histone deacetylase inhibitor.
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Affiliation(s)
- Dzmitry M. Zubrytski
- Department of Organic Chemistry, Belarusian State University, Leningradskaya 14, 220050 Minsk, Belarus;
| | - Gábor Zoltán Elek
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
| | - Margus Lopp
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
| | - Dzmitry G. Kananovich
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia; (G.Z.E.); (M.L.)
- Correspondence: ; Tel.: +372-6204382
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Liu T, Zheng D, Li Z, Wu J. A Route to O
-Aminosulfonates and Sulfonamides through Insertion of Sulfur Dioxide and Hydrogen Atom Transfer. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700501] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Tong Liu
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 People's Republic of China
| | - Danqing Zheng
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 People's Republic of China
| | - Zhenhua Li
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 People's Republic of China
| | - Jie Wu
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 People's Republic of China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
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Lachowicz JI, Nurchi VM, Crisponi G, Pelaez MDGJ, Rescigno A, Stefanowicz P, Cal M, Szewczuk Z. Metal coordination and tyrosinase inhibition studies with Kojic-βAla-Kojic. J Inorg Biochem 2015; 151:36-43. [PMID: 26239546 DOI: 10.1016/j.jinorgbio.2015.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 06/29/2015] [Accepted: 07/01/2015] [Indexed: 11/15/2022]
Abstract
Kojic acid is a natural antifungal and antibacterial agent that has been extensively studied for its tyrosinase inhibitory and metal coordination properties. Tyrosinase is a metalloenzyme with two copper ions in the active site. It is widely accepted that the tyrosinase inhibitory activity of kojic acid is related to its ability to coordinate metals. Over the past five years, we have used kojic acid to synthesize new and efficient bis-kojic acid chelators of iron and aluminium. In parallel, we investigated whether the de novo designed ligands could interfere with proper tyrosinase functioning. The present study combines our experience with inhibition and coordination studies of the new ligand: Kojic-βAla-Kojic. Research aimed at the assembly of a new potent tyrosinase inhibitor was based on the well-known crystal structure of the enzyme. Two questions were whether two kojic acids could act better than one and to what extent the length and kind of linker could ameliorate metal coordination, and inhibitory activity. Our results show that Kojic-βAla-Kojic has high affinity for Fe(III), Al(III), Zn(II), and Cu(II) and strong tyrosinase inhibitory effect and it can be proposed for use in industrial and pharmaceutical applications.
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Affiliation(s)
- Joanna Izabela Lachowicz
- Department of Chemical and Geological Sciences, University of Cagliari, Cittadella Universitaria, Monserrato, Cagliari 09042, Italy.
| | - Valeria Marina Nurchi
- Department of Chemical and Geological Sciences, University of Cagliari, Cittadella Universitaria, Monserrato, Cagliari 09042, Italy
| | - Guido Crisponi
- Department of Chemical and Geological Sciences, University of Cagliari, Cittadella Universitaria, Monserrato, Cagliari 09042, Italy
| | | | - Antonio Rescigno
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, Monserrato, Cagliari 09042, Italy
| | - Piotr Stefanowicz
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Marta Cal
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Zbigniew Szewczuk
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, Wroclaw 50-383, Poland
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Li X, Liang X, Song T, Su P, Zhang Z. Design, synthesis and structure-activity relationship studies of morpholino-1H-phenalene derivatives that antagonize Mcl-1/Bcl-2. Bioorg Med Chem 2014; 22:S0968-0896(14)00701-9. [PMID: 25319084 DOI: 10.1016/j.bmc.2014.09.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 09/19/2014] [Accepted: 09/23/2014] [Indexed: 11/21/2022]
Abstract
We report herein characteristic studies of Mcl-1 and Bcl-2 dual inhibitors. It was found that a protruding carbonyl group forming hydrogen bond with R263 plays a predominant role compared with the hydrophobic group that occupies the p2 pocket. A series of dual inhibitors representing different parts of the morpholino-1H-phenalene were designed, synthesized and evaluated.
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Affiliation(s)
- Xiangqian Li
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, China; Ocean University of China, 238 Songling Road, Qingdao, China
| | - Xiaomeng Liang
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, China
| | - Ting Song
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, China
| | - Pengchen Su
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, China
| | - Zhichao Zhang
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, China.
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Unexpected regioselective carbon–hydrogen bond activation/cyclization of indolyl aldehydes or ketones with alkynes to benzo-fused oxindoles. Nat Commun 2014; 5:5030. [DOI: 10.1038/ncomms6030] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 08/19/2014] [Indexed: 11/09/2022] Open
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Bai L, Zhang X, Ma N. Water-Promoted Ring-Opening Reactions ofN-Substituted Saccharins and Phthalimides by Amines. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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One-pot efficient synthesis of N(α)-urethane-protected β- and γ-amino acids. Amino Acids 2012; 44:1085-91. [PMID: 23250684 PMCID: PMC3569585 DOI: 10.1007/s00726-012-1443-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Accepted: 12/01/2012] [Indexed: 11/11/2022]
Abstract
1-[(4-Methylphenyl)oxy]pyrrolidine-2,5-dione and 1-[(4-methylphenyl)oxy]piperidine-2,6-dione react in a Lossen-type reaction with primary alcohols in the presence of triethylamine to furnish corresponding Nα-urethane-protected β-alanine and γ-aminopropionic acid (GABA), respectively, with excellent yields and purities, in an essentially “one-pot” procedure.
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Khan SI, Knobler CB, Maverick EF. Benz[cd]indol-2(1H)-one at 298 and 100 K. Acta Crystallogr C 2012; 68:o1-6. [PMID: 22223280 DOI: 10.1107/s0108270111050281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Accepted: 11/23/2011] [Indexed: 11/11/2022] Open
Abstract
Weakly diffracting crystals of benz[cd]indol-2(1H)-one (naphtholactam), C(11)H(7)NO, were unsuitable for data collection by early photographic methods. However, a diffractometer data set collected at room temperature in 1989 was solved and refined. The peak scans were broad, and the results indicated disorder or a satellite crystal. Recent data collection (on another crystal from the same sample) with an area detector at 100 K revealed the same disorder, and made it possible to refine two different, more complete, disorder models. Both models assume an occasional 180° rotation of the nearly planar centrosymmetric cis-lactam dimer. The refinements differ, especially in the anisotropic displacement parameters for the -C(=O)-NH- portion of the molecule. Both models at 100 K give a C-N (`amide') bond distance of 1.38 Å, about 0.04 Å longer than the average distance in saturated γ-lactams in the Cambridge Structural Database. Cohesive packing interactions between molecules include opposing-dipole dimers; the packing may explain the 10:1 ratio favoring the major-occupancy molecule.
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Affiliation(s)
- Saeed I Khan
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, CA 90095-1569, USA
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Pearson AJ, Panda S. N-Prolinylanthranilic acid derivatives as bifunctional organocatalysts for asymmetric aldol reactions. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.04.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sheikh MC, Takagi S, Sakai M, Mori T, Hayashi N, Fujie T, Ono S, Yoshimura T, Morita H. Syntheses and reactivities of non-symmetrical “active ester” bi-dentate cross-linking reagents having a phthalimidoyl and acid chloride, 2-benzothiazole, or 1-benzotriazole group. Org Biomol Chem 2011; 9:1244-54. [DOI: 10.1039/c0ob00671h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Sheikh MC, Takagi S, Yoshimura T, Morita H. Mechanistic studies of DCC/HOBt-mediated reaction of 3-phenylpropionic acid with benzyl alcohol and studies on the reactivities of ‘active ester’ and the related derivatives with nucleophiles. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.07.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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