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A scalable and efficient synthesis of 3-chloro-1,2-propanediol

Authors: Pinto, L.S.S.; Silva, E.T.; De Souza, M.V.N. Source: Organic Preparations and Procedures International: The New Journal for Organic Synthesis, v. 48, p.319-320, 2016 Publisher: Taylor & Francis Group Abstract None Keywords: None Document Type: Research Article DOI: http://dx.doi.org/10.1080/00304948.2016.1165062 Publication date: 18 de Maio de 2016

Variations in the intermolecular interactions in (E) benzaldehyde 7-chloro-1-methyl- 4H-quinolinyl-4-ylidene-hydrazone and seven halo derivatives

Authors: Bispo, M.L.F.; Alcantara, C.C.; Wardell, S.M.S.V.; De Souza, M.V.N.; Wardell, J.L. Source: Zeitschrift für Kristallographie, v. 231(4), p.219–235, 2016 Publisher: De Gruyter Abstract Eight crystal structures are reported here: substituted (E) benzaldehyde 7-chloro-1-methyl-4H-quinolinyl-4-ylidene-hydrazones, 1, [substituted benzaldehyde: XYC6H4CHO: X,Y=H,H; 2-F,H; 3-F,H; 4-F,H; 3-Cl,H; 4-Cl,H; 2-Br,H and 2,3-Cl2]. None of the molecules, 1, are overall planar: […]

Crystal structures of 2-[5-nitrothien-2-yl)- CH=N–NR–CO(CH2)n]thiophene compounds (R = H or Me; n = 0 or 1)

Authors: Cardoso, L.N.F.; Nogueira, T.C.M.; Kaiser, C.R.; Wardell, J.L.; Wardell, S.M.S.V.; De Souza, M.V.N. Source: Zeitschrift für Kristallographie, v. 231(3), p.167–178, 2016 Publisher: De Gruyter Abstract The crystal structures of four acylhydrazonyl derivatives of thiophene, 2-(ArCH=N–NHCO)- thiophene, (1a), 2-(ArCH=N–NMeCO)-thiophene, (2a), 2-(ArCH=N–NHCOCH2)-thiophene, (3a) and 2-(ArCH= N–NMeCOCH2)-thiophene, (4a) [in each case Ar= 5-nitrothien-2-yl] are reported. The molecular […]

Synthesis and anti-tubercular activity of Thienyl and Furanyl derivatives

Authors: Cardoso, L.N.F.; Nogueira, T.C.M.; Kaiser, C.R.; Wardell, J.L.; Wardell, S.M.S.V.; De Souza, M.V.N. Source: Mediterranean Journal of Chemistry, v. 5(1), 356-366, 2016 Publisher: Astucia Group Abstract The synthesis and anti-tubercular activity of series of acyl hydrazonyl compounds, namely (E)-N’-(arylidene)thiophen-2-carbohydrazide, (E)- N’-(arylidene)furan-2-carbohydrazide, (E)-N-methyl- N’-arylidene-thiophen-2-carbohydrazide, and E)-N-methyl- N’-arylidene-2-(thien-2yl)-acetohydrazide, [32 compounds in all] are reported. The activities […]

Further study of oxazolidines derived from mefloquine and arenealdehydes: diastereoisomers and polymorphs

Authors: Pinheiro, Alessandra C.; Kaiser, Carlos R.; LourenÇo, Maria C.S.; de Souza, Marcus V.N.; Wardell, Solange M.S.V.; Wardell, James L. Goncalves, R.S.B.; De Souza, M.V.N.; Wardell, S.M.S.V.; Wardell, J.L. Source: Zeitschrift für Kristallographie, v. 231(1), p. 35–46, 2016 Publisher: De Gruyter Abstract The reaction between racemic erythro [(R*,S*)-2,8-bis(trifluoromethyl)quinolin-4-yl]-(2-piperidyl)methanol] and 2-formyl-5-nitrothiene in toluene generates a reaction mixture containing two diastereoisomers of […]

Cytotoxicity and Leishmanicidal Activity of Isoniazid-Derived Hydrazones and 2-Pyrazineformamide Thiosemicarbazones

Authors: Amim, R.S.; Firmino, G.S.S.; Rego, A.C.P.D.; Nery, A.L.; Da Silva, S.A.G.; De Souza, M.V.N.; Pessoa, C.; Resende, J.A.L.C.; Figueroa-Villar, J.D.; Lessa, J.A. Source: J. Braz. Chem. Soc., v. 27(4), p.769-777, 2016   Publisher: Sociedade Brasileira de Química Abstract The isoniazid-derived hydrazones 2-pyridinecarbaldehyde- (HPCIH), 2-acetylpyridine- (HAPIH), 2-benzoylpyridine- (HBPIH), 2-pyridineformamide- (HPAmIH) and 2-pyrazineformamide- (HPzAmIH) isonicotinoyl hydrazones, […]

An eco-friendly, Hantzsch-Based, solvent-free approach to 2-aminothiazoles and 2-aminoselenazoles

Authors: Facchinetti, V.; Avellar, M.M.; Nery, A.C.S.; Gomes, C.R.B.; Vasconcelos, T.R.A.; De Souza, M.V.N. Source: Synthesis, v.48(3), p.437-440, 2016 Publisher: Thieme Abstract Reactions proceed to completion in a few seconds and products are obtained in moderate to excellent yields after easy workup. Moreover, the synthesis of 4-(2-amino-1,3-selenazol-4-yl)benzonitrile hydrobromide is reported for the first time. Keywords: […]

Aqueous Molecular Dynamics Simulations of the M. tuberculosis Enoyl-ACP Reductase-NADH System and Its Complex with a Substrate Mimic or Diphenyl Ethers Inhibitors.

Authors: Lima, C.H.S.; De Alencastro, R.; Kaiser, C.R.; De Souza, M.V.N.; Rodrigues, C.; Albuquerque, M. Source:  International Journal of Molecular Sciences (Online), v. 16, p. 23695-23722, 2015. Publisher: Multidisciplinary Digital Publishing Institute (MDPI) Abstract Molecular dynamics (MD) simulations of 12 aqueous systems of the NADH-dependent enoyl-ACP reductase from Mycobacterium tuberculosis (InhA) were carried out for […]

A new and potent class of quinoline derivatives against cancer

Authors: Bispo, M.L.F.; Alcântara, C.C.; Moraes, M.O.; Pessoa, C.O.; Rodrigues, F.A.R.; Kaiser, C.R.; Wardell, S.M.S.V.; Wardell, J.L.; De Souza, M.V.N. Source: Monatshefte fur Chemie, v. 146, p. 2041-2052, 2015 Publisher: Springer International Publishing AG   Abstract A new class of 4-quinolinylhydrazone derivatives has been synthesized and evaluated for their cytotoxic potential against three cancer cell […]

Weak C-H…O and C-H…π hydrogen bonds and π-π stacking interactions in a series of four -N'-[(E)-(aryl)methylidene]- -methyl-2-oxo-1,3-oxazolidine-4-carbohydrazides

Authors: Nogueira, T.C.M.; Pinheiro, A.C.; Wardell, J.L.; De Souza, M.V.N.; Abberley, J.P.; Harrison, W.T.A. Source: Acta Crystallographica Section C Structural Chemistry, v. 71, p. 1-10, 2015 Publisher: International Union of Crystallography Abstract Oxazolidin-2-ones are widely used as protective groups for 1,2-amino alcohols and chiral derivatives are employed as chiral auxiliaries. The crystal structures of four […]

Synthesis of Novel Ethyl (substituted)phenyl-4-oxothiazolidin-3-yl)-1-ethyl-4-oxo-1,4-dihydroquinoline-3-Carboxylates as Potential Anticancer Agents

Authors: Facchinetti, V.; Guimarães, F.A.; De Souza, M.V.N.; Gomes, C.R.B.; De Souza, M.C.B.V.; Wardell, J.L.; Wardell, S.M.S.V.; Vasconcelos, T.R.A. Source: Journal of Heterocyclic Chemistry, v. 52, p. 1245-1252, 2015 Publisher: John Wiley & Sons, Inc. Abstract A series of ethyl (substituted)phenyl-4-oxothiazolidin-3-yl)-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylates () has been prepared from reactions between aminoquinolones with arenealdehydes and mercaptoacetic acid. The critical […]

Synthesis and antitubercular evaluation of 7-chloro-4-alkoxyquinoline derivatives

Authors: Bispo, M.L.F.; Cardoso, L.N.F.; Lourenço, M.C.S.; Bezerra, F.A.F.M.; Soares, R.P.P.; Bertollo, C.M.; De Souza, M.V.N. Source: Mediterranean Journal of Chemistry, v. 4, p. 1-8, 2015.  Publisher: Med Journal Editions Abstract A series of eight 7-chloro-4-alkoxyquinoline derivatives (2a-h) have been synthesized and their in vitro (antimycobacterial) activity against Mycobacterium tuberculosis was evaluated. Furthermore, all the […]