1
|
Kerr WR, Squire MA, Fitchett CM. Synthesis and structural isomerism of sterically hindered isobornyl amide tethered N-heterocyclic carbene complexes. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
2
|
Bibi R, Khan IU, Hassan A. Steric evaluation of Pyox ligands for asymmetric intermolecular Heck-Matsuda reaction. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
3
|
Jia W, Hu C, Wang Y, Liu Y, Wang L, Zhang S, Zhu Q, Gu Y, Zhang P, Ma J, Chen HY, Huang S. Identification of Single-Molecule Catecholamine Enantiomers Using a Programmable Nanopore. ACS NANO 2022; 16:6615-6624. [PMID: 35394745 DOI: 10.1021/acsnano.2c01017] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Enantiomers, chiral isomers with opposite chirality, typically demonstrate differences in their pharmacological activity, metabolism, and toxicity. However, direct discrimination between enantiomers is challenging due to their similar physiochemical properties. Following the strategy of programmable nanoreactors for stochastic sensing (PNRSS), introduction of phenylboronic acid (PBA) to a Mycobacterium smegmatis porin A (MspA) assists in the identification of the enantiomers of norepinephrine and epinephrine. Using a machine learning algorithm, identification of the enantiomers has been achieved with an accuracy of 98.2%. The enantiomeric excess (ee) of a mixture of enantiomeric catecholamines was measured to determine the enantiomeric purity. This sensing strategy is a faster method for the determination of ee values than liquid chromatography-mass spectrometry and is useful as a quality control in the industrial production of enantiomeric drugs.
Collapse
Affiliation(s)
- Wendong Jia
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023 Nanjing, China
| | - Chengzhen Hu
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023 Nanjing, China
| | - Yuqin Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023 Nanjing, China
| | - Yao Liu
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023 Nanjing, China
| | - Liying Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023 Nanjing, China
| | - Shanyu Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023 Nanjing, China
| | - Qiang Zhu
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
| | - Yuming Gu
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
| | - Panke Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
| | - Jing Ma
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
| | - Shuo Huang
- State Key Laboratory of Analytical Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
- Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, 210023 Nanjing, China
| |
Collapse
|
4
|
Sokolova A, Kovaleva KS, Kuranov SO, Bormotov NI, Borisevich SS, Yarovaya OI, Zhukovets A, Serova OA, Nawrozkij MB, Vernigora AA, Davidenko AV, Khamitov EM, Peshkov RY, Shishkina LN, Maksuytov RA, Salakhutdinov NF. Design, synthesis and biological evaluation of novel (+)-сamphor and (-)-fenchone based derivatives as potent orthopoxviruses inhibitors. ChemMedChem 2022; 17:e202100771. [PMID: 35388614 DOI: 10.1002/cmdc.202100771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/31/2022] [Indexed: 11/10/2022]
Abstract
In this work, a library of (+)-camphor and (-)-fenchone based N-acylhydrazones, amides, and esters, including para-substituted aromatic/hetaromatic/cyclohexane ring was synthesized, with potent orthopoxvirus inhibitors identified among them. Investigations of the structure-activity relationship revealed the significance of the substituent at the para-position of the aromatic ring. Also, the nature of the linker between a hydrophobic moiety and aromatic ring was clarified. Derivatives with p-Cl, p-Br, p-CF3, and p-NO2 substituted aromatic ring and derivatives with cyclohexane ring showed the highest antiviral activity against vaccinia virus, cowpox, and ectromelia virus. The hydrazone and the amide group were more favourable as a linker for antiviral activity than the ester group. Compounds 3b and 7e with high antiviral activity were examined using the time-of-addition assay and molecular docking study. The results revealed the tested compounds to inhibit the late processes of the orthopoxvirus replication cycle and the p37 viral protein to be a possible biological target.
Collapse
Affiliation(s)
- Anastasiya Sokolova
- Novosibirskij institut organiceskoj himii imeni N N Vorozcova SO RAN, Medicinal Chemistry, 9, Lavrent'ev avenue, 630090, Novosibirsk, RUSSIAN FEDERATION
| | - Kseniya S Kovaleva
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS: Novosibirskij institut organiceskoj himii imeni N N Vorozcova SO RAN, SB RAS, RUSSIAN FEDERATION
| | - Sergey O Kuranov
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS: Novosibirskij institut organiceskoj himii imeni N N Vorozcova SO RAN, SB RAS, SAINT KITTS AND NEVIS
| | - Nikolay I Bormotov
- VECTOR: State Research Center of Virology and Biotechnology, Prevention and Tretment of Highly Dangerous Infection, RUSSIAN FEDERATION
| | - Sophia S Borisevich
- Ufa Institute of Chemistry RAS: FGBUN Ufimskij Institut himii Rossijskoj akademii nauk, RAS, RUSSIAN FEDERATION
| | - Olga I Yarovaya
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS: Novosibirskij institut organiceskoj himii imeni N N Vorozcova SO RAN, SB RAS, RUSSIAN FEDERATION
| | - Anastasiya Zhukovets
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS: Novosibirskij institut organiceskoj himii imeni N N Vorozcova SO RAN, SB RAS, RUSSIAN FEDERATION
| | - Olga A Serova
- VECTOR: State Research Center of Virology and Biotechnology, Prevention and Treatment of Highly Dengerous Infection, RUSSIAN FEDERATION
| | - Maxim B Nawrozkij
- Volgograd State Technical University: Volgogradskij gosudarstvennyj tehniceskij universitet, Chemistry, RUSSIAN FEDERATION
| | - Andrey A Vernigora
- Volgograd State Technical University: Volgogradskij gosudarstvennyj tehniceskij universitet, Chemistry, RUSSIAN FEDERATION
| | - Andrey V Davidenko
- Volgograd State Technical University: Volgogradskij gosudarstvennyj tehniceskij universitet, Chemistry, RUSSIAN FEDERATION
| | - Eduard M Khamitov
- Ufa Institute of Chemistry RAS: FGBUN Ufimskij Institut himii Rossijskoj akademii nauk, Chemistry, RUSSIAN FEDERATION
| | - Roman Yu Peshkov
- Novosibirsk National Research State University: Novosibirskij gosudarstvennyj universitet, Natural Science, RUSSIAN FEDERATION
| | - Larisa N Shishkina
- VECTOR: State Research Center of Virology and Biotechnology, Prevention and Tretment of Highly Dangerous Infections, RUSSIAN FEDERATION
| | - Rinat A Maksuytov
- VECTOR: State Research Center of Virology and Biotechnology, Rospotrebnadzor, RUSSIAN FEDERATION
| | - Nariman F Salakhutdinov
- Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS: Novosibirskij institut organiceskoj himii imeni N N Vorozcova SO RAN, Medicinal Chemistry, RUSSIAN FEDERATION
| |
Collapse
|
5
|
Arora Z, Eftemie D, Spinciu A, Maxim C, Hanganu A, Tudorache M, Cojocaru B, Pavel OD, Granger P, Andruh M, Pârvulescu VI. Valmet Chiral Schiff‐Base Ligands And Their Copper(II) Complexes as Organo, Homogeneous and Heterogeneous Catalysts for Henry, Cyanosilylation and Aldol Coupling Reactions. ChemCatChem 2021. [DOI: 10.1002/cctc.202101149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Zinnia Arora
- Department of Organic Chemistry, Biochemistry and Catalysis University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| | - Diana‐Ioana Eftemie
- Department of Inorganic Chemistry University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| | - Adela Spinciu
- Department of Inorganic Chemistry University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| | - Cătălin Maxim
- Department of Inorganic Chemistry University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| | - Ana‐Maria Hanganu
- Department of Organic Chemistry, Biochemistry and Catalysis University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
- Institute of Organic Chemistry “C. D. Nenitzescu” Romanian Academy 202 B Spl. Independenţei, S6 060023 Bucharest Romania
| | - Madalina Tudorache
- Department of Organic Chemistry, Biochemistry and Catalysis University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| | - Bogdan Cojocaru
- Department of Organic Chemistry, Biochemistry and Catalysis University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| | - Octavian D. Pavel
- Department of Organic Chemistry, Biochemistry and Catalysis University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| | - Pascal Granger
- Univ. Lille CNRS, Centrale Lille, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide F-59000 Lille France
| | - Marius Andruh
- Department of Inorganic Chemistry University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
- Institute of Organic Chemistry “C. D. Nenitzescu” Romanian Academy 202 B Spl. Independenţei, S6 060023 Bucharest Romania
| | - Vasile I. Pârvulescu
- Department of Organic Chemistry, Biochemistry and Catalysis University of Bucharest 4-12 Regina Elisabeta Av., S3 030018 Bucharest Romania
| |
Collapse
|
6
|
Neganova M, Aleksandrova Y, Suslov E, Mozhaitsev E, Munkuev A, Tsypyshev D, Chicheva M, Rogachev A, Sukocheva O, Volcho K, Klochkov S. Novel Multitarget Hydroxamic Acids with a Natural Origin CAP Group against Alzheimer's Disease: Synthesis, Docking and Biological Evaluation. Pharmaceutics 2021; 13:pharmaceutics13111893. [PMID: 34834312 PMCID: PMC8623418 DOI: 10.3390/pharmaceutics13111893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/30/2021] [Accepted: 11/04/2021] [Indexed: 02/05/2023] Open
Abstract
Hydroxamic acids are one of the most promising and actively studied classes of chemical compounds in medicinal chemistry. In this study, we describe the directed synthesis and effects of HDAC6 inhibitors. Fragments of adamantane and natural terpenes camphane and fenchane, combined with linkers of various nature with an amide group, were used as the CAP groups. Accordingly, 11 original target compounds were developed, synthesized, and exposed to in vitro and in vivo biological evaluations, including in silico methods. In silico studies showed that all synthesized compounds were drug-like and could penetrate through the blood-brain barrier. According to the in vitro testing, hydroxamic acids 15 and 25, which effectively inhibited HDAC6 and exhibited anti-aggregation properties against β-amyloid peptides, were chosen as the most promising substances to study their neuroprotective activities in vivo. All in vivo studies were performed using 5xFAD transgenic mice simulating Alzheimer's disease. In these animals, the Novel Object Recognition and Morris Water Maze Test showed that the formation of hippocampus-dependent long-term episodic and spatial memory was deteriorated. Hydroxamic acid 15 restored normal memory functions to the level observed in control wild-type animals. Notably, this effect was precisely associated with the ability to restore lost cognitive functions, but not with the effect on motor and exploratory activities or on the level of anxiety in animals. Conclusively, hydroxamic acid 15 containing an adamantane fragment linked by an amide bond to a hydrocarbon linker is a possible potential multitarget agent against Alzheimer's disease.
Collapse
Affiliation(s)
- Margarita Neganova
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, 142432 Moscow, Russia; (M.N.); (Y.A.); (M.C.)
| | - Yulia Aleksandrova
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, 142432 Moscow, Russia; (M.N.); (Y.A.); (M.C.)
| | - Evgenii Suslov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.S.); (E.M.); (A.M.); (D.T.); (A.R.); (K.V.)
| | - Evgenii Mozhaitsev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.S.); (E.M.); (A.M.); (D.T.); (A.R.); (K.V.)
| | - Aldar Munkuev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.S.); (E.M.); (A.M.); (D.T.); (A.R.); (K.V.)
| | - Dmitry Tsypyshev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.S.); (E.M.); (A.M.); (D.T.); (A.R.); (K.V.)
| | - Maria Chicheva
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, 142432 Moscow, Russia; (M.N.); (Y.A.); (M.C.)
| | - Artem Rogachev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.S.); (E.M.); (A.M.); (D.T.); (A.R.); (K.V.)
| | - Olga Sukocheva
- Discipline of Health Sciences, College of Nursing and Health Sciences, Flinders University, Bedford Park, SA 5042, Australia;
| | - Konstantin Volcho
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.S.); (E.M.); (A.M.); (D.T.); (A.R.); (K.V.)
| | - Sergey Klochkov
- Institute of Physiologically Active Compounds of the Russian Academy of Sciences, 142432 Moscow, Russia; (M.N.); (Y.A.); (M.C.)
- Correspondence: ; Tel.: +7-(496)-5242525
| |
Collapse
|
7
|
von der Heiden D, Németh FB, Andreasson M, Sethio D, Pápai I, Erdelyi M. Are bis(pyridine)iodine(I) complexes applicable for asymmetric halogenation? Org Biomol Chem 2021; 19:8307-8323. [PMID: 34522944 PMCID: PMC8494190 DOI: 10.1039/d1ob01532j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Enantiopure halogenated molecules are of tremendous importance as synthetic intermediates in the construction of pharmaceuticals, fragrances, flavours, natural products, pesticides, and functional materials. Enantioselective halofunctionalizations remain poorly understood and generally applicable procedures are lacking. The applicability of chiral trans-chelating bis(pyridine)iodine(i) complexes in the development of substrate independent, catalytic enantioselective halofunctionalization has been explored herein. Six novel chiral bidentate pyridine donor ligands have been designed, routes for their synthesis developed and their [N–I–N]+-type halogen bond complexes studied by 15N NMR and DFT. The chiral complexes encompassing a halogen bond stabilized iodenium ion are shown to be capable of efficient iodenium transfer to alkenes; however, without enantioselectivity. The lack of stereoselectivity is shown to originate from the availability of multiple ligand conformations of comparable energies and an insufficient steric influence by the chiral ligand. Substrate preorganization by the chiral catalyst appears a necessity for enantioselective halofunctionalization. The enantioselectivity of the iodine(i) transfer process from chiral bis(pyridine)iodine(i) complexes to alkenes is explored.![]()
Collapse
Affiliation(s)
| | - Flóra Boróka Németh
- Institute of Organic Chemistry, Research Centre for Natural Sciences, H-1117 Budapest, Hungary
| | - Måns Andreasson
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-412 96 Gothenburg, Sweden
| | - Daniel Sethio
- Department of Chemistry - BMC, Uppsala University, SE-751 23 Uppsala, Sweden.
| | - Imre Pápai
- Institute of Organic Chemistry, Research Centre for Natural Sciences, H-1117 Budapest, Hungary.,Department of Chemistry, University J. Selyeho, 94505 Komárno, Slovakia
| | - Mate Erdelyi
- Department of Chemistry - BMC, Uppsala University, SE-751 23 Uppsala, Sweden.
| |
Collapse
|
8
|
Cho J, Jeong JH, Lee H, Lee JK, Nayab S. Application of asymmetric Henry reaction by copper(II) complexes containing (R,R)-1,2-diaminocyclohexane with naphthyl and thiophenyl substituents. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
9
|
Giunta D, Arras A, Peluso P, Solinas M. Synthesis of “Click BOX” ligands and preliminary results on their application in the asymmetric copper catalysed Henry reaction of o-methoxybenzaldehyde. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
10
|
Synthesis of chiral salan ligands with bulky substituents and their application in Cu-catalyzed asymmetric Henry reaction. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121546] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
11
|
Novakov IA, Nawrozkij MB, Mkrtchyan AS, Voloboev SN, Vostrikova OV, Vernigora AA, Brunilin R. Potential Synthetic Adaptogens: V. Synthesis of Cage Monoamines by the Schwenk–Papa Reaction. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428019110162] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
12
|
Dong L, Chen FE. Asymmetric catalysis in direct nitromethane-free Henry reactions. RSC Adv 2020; 10:2313-2326. [PMID: 35494598 PMCID: PMC9048686 DOI: 10.1039/c9ra10263a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 01/06/2020] [Indexed: 11/21/2022] Open
Abstract
This review summarizes the current state and applications of catalytic Henry reactions involving complex nitroalkanes coupling with various carbonyl compounds to generate chiral β-nitro alcohol scaffolds with four adjacent stereogenic centers.
Collapse
Affiliation(s)
- Lin Dong
- Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. of China
| | - Fen-Er Chen
- Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- P. R. of China
| |
Collapse
|
13
|
Sappino C, Primitivo L, De Angelis M, Domenici MO, Mastrodonato A, Romdan IB, Tatangelo C, Suber L, Pilloni L, Ricelli A, Righi G. Functionalized Magnetic Nanoparticles as Catalysts for Enantioselective Henry Reaction. ACS OMEGA 2019; 4:21809-21817. [PMID: 31891058 PMCID: PMC6933584 DOI: 10.1021/acsomega.9b02683] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
With the aim to easily recover and reuse the catalyst, an efficient amino alcohol catalyst previously tested in the asymmetric addition of diethylzinc to several aromatic aldehydes has been immobilized on proper functionalized superparamagnetic core-shell magnetite-silica nanoparticles and employed in the Henry reaction in the semi-homogeneous phase. The nanocatalyst exhibits a promising catalytic activity that remains unchanged in the three catalytic cycles performed. The results prove that highly efficient catalysts, by being immobilized on suitable magnetic nanosupports, can be easily recovered and reused, maintaining their catalytic behavior.
Collapse
Affiliation(s)
- Carla Sappino
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| | - Ludovica Primitivo
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| | - Martina De Angelis
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| | | | - Andrea Mastrodonato
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| | - Ilaria Ben Romdan
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| | - Chiara Tatangelo
- Dip.
Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| | - Lorenza Suber
- CNR-Istituto
di Struttura della Materia, Via Salaria km 29.300, Monterotondo Scalo, 00015 Rome, Italy
| | - Luciano Pilloni
- SSPT-PROMAS-MATPRO
ENEA CR CASACCIA, Via
Anguillarese 301, 0123 Rome, Italy
| | - Alessandra Ricelli
- CNR-IBPM-
c/o Dip. Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| | - Giuliana Righi
- CNR-IBPM-
c/o Dip. Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy
| |
Collapse
|
14
|
Bioselectivity Induced by Chirality of New Terpenyl Organoselenium Compounds. MATERIALS 2019; 12:ma12213579. [PMID: 31683558 PMCID: PMC6862013 DOI: 10.3390/ma12213579] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 10/24/2019] [Accepted: 10/29/2019] [Indexed: 12/17/2022]
Abstract
A series of new chiral benzisoselenazol-3(2H)-ones substituted on the nitrogen atom with three monoterpene moieties—p-menthane, pinane and carane—was synthesized. The compounds were obtained by the reaction of 2-(chloroseleno)benzoyl chloride with an appropriate terpene amine, first synthesized by a multistep methodology starting from the corresponding alcohol (p-menthane system) or alkene (pinene and carene systems). Compounds were tested as antioxidants and anticancer agents. The N-isopinocampheyl-1,2-benzisoselenazol-3(2H)-one was the best peroxide scavenger and antiproliferative agent on the human promyelocytic leukemia cell line HL-60. The N-menthyl-1,2-benzisoselenazol-3(2H)-one revealed the highest anticancer potential towards breast cancer line MCF-7. The influence of structure and chirality on the bio-activity of the obtained organoselenium compounds was thoroughly evaluated.
Collapse
|
15
|
Mohanta R, Bez G. Cu(II)-L-prolinamide: First catalytic application of metal-amidoamine complex in enantioselective Henry reaction. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.105728] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
16
|
Larionov VA, Yashkina LV, Medvedev MG, Smol'yakov AF, Peregudov AS, Pavlov AA, Eremin DB, Savel'yeva TF, Maleev VI, Belokon YN. Henry Reaction Revisited. Crucial Role of Water in an Asymmetric Henry Reaction Catalyzed by Chiral NNO-Type Copper(II) Complexes. Inorg Chem 2019; 58:11051-11065. [PMID: 31369247 DOI: 10.1021/acs.inorgchem.9b01574] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chiral copper(II) and cobalt(III) complexes (1-5 and 6, respectively) derived from Schiff bases of (S)-2-(aminomethyl)pyrrolidine and salicylaldehyde derivatives were employed in a mechanistic study of the Henry reaction-type condensation of nitromethane and o-nitrobenzaldehyde in CH2Cl2 (CD2Cl2), containing different amounts of water. The reaction kinetics was monitored by 1H and 13C NMR. The addition of water had a different influence on the activity of the two types of complexes, ranging from a crucial positive effect in the case of the copper(II) complex 2 to insignificant in the case of the stereochemically inert cobalt(III) complex 6. No experimental support was found by 1H NMR studies for the classical Lewis acid complexation of the carbonyl group of the aldehyde by the central copper(II) ion, and, moreover, density functional theory (DFT) calculations support the absence of such coordination. On the other hand, a very significant complexation was found for water, and it was supported by DFT calculations. In fact, we suggest that it is the Brønsted acidity of the water molecule coordinated to the metal ion that triggers the aldehyde activation. The rate-limiting step of the reaction was the removal of an α-proton from the nitromethane molecule, as supported by the observed kinetic isotope effect equaling 6.3 in the case of the copper complex 2. It was found by high-resolution mass spectrometry with electrospray ionization that the copper(II) complex 2 existed in CH2Cl2 in a dimeric form. The reaction had a second-order dependence on the catalyst concentration, which implicated two dimeric forms of the copper(II) complex 2 in the rate-limiting step. Furthermore, DFT calculations help to generate a plausible structure of the stereodetermining transition step of the condensation.
Collapse
Affiliation(s)
- Vladimir A Larionov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation.,Department of Inorganic Chemistry , Peoples' Friendship University of Russia (RUDN University) , Miklukho-Maklaya Street 6 , 117198 Moscow , Russian Federation
| | - Lidiya V Yashkina
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Michael G Medvedev
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation.,N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky prospect 47 , 119991 Moscow , Russian Federation.,National Research University Higher School of Economics , Myasnitskaya Street 20 , 101000 Moscow , Russian Federation
| | - Alexander F Smol'yakov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation.,Plekhanov Russian University of Economics , Stremyanny per. 36 , 117997 Moscow , Russian Federation
| | - Alexander S Peregudov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Alexander A Pavlov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Dmitry B Eremin
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky prospect 47 , 119991 Moscow , Russian Federation.,The Bridge@USC , University of Southern California , 1002 Childs Way , Los Angeles , California 90089-3502 , United States
| | - Tat'yana F Savel'yeva
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Victor I Maleev
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| | - Yuri N Belokon
- A. N. Nesmeyanov Institute of Organoelement Compounds , Russian Academy of Sciences , Vavilov Street 28 , 119991 Moscow , Russian Federation
| |
Collapse
|
17
|
A new type of L-Tertiary leucine-derived ligand: Synthesis and application in Cu(II)-catalyzed asymmetric Henry reactions. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
18
|
Cirujano FG. Engineered MOFs and Enzymes for the Synthesis of Active Pharmaceutical Ingredients. ChemCatChem 2019. [DOI: 10.1002/cctc.201900131] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Francisco G. Cirujano
- Centre for Surface Chemistry and CatalysisKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| |
Collapse
|
19
|
New chiral morpholine-pyrrolidine ligands affecting asymmetric selectivity in copper catalyzed Henry reaction. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
20
|
Rao DHS, Padhi SK. Production of (S)-β-Nitro Alcohols by Enantioselective C-C Bond Cleavage with an R-Selective Hydroxynitrile Lyase. Chembiochem 2019; 20:371-378. [PMID: 30411458 DOI: 10.1002/cbic.201800416] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/08/2018] [Indexed: 11/07/2022]
Abstract
Hydroxynitrile lyase (HNL)-catalysed stereoselective synthesis of β-nitro alcohols from aldehydes and nitroalkanes is considered an efficient biocatalytic approach. However, only one S-selective HNL-Hevea brasiliensis (HbHNL)-exists that is appropriate for the synthesis of (S)-β-nitro alcohols from the corresponding aldehydes. Further, synthesis catalysed by HbHNL is limited by low specific activity and moderate yields. We have prepared a number of (S)-β-nitro alcohols, by kinetic resolution with the aid of an R-selective HNL from Arabidopsis thaliana (AtHNL). Optimization of the reaction conditions for AtHNL-catalysed stereoselective C-C bond cleavage of racemic 2-nitro-1-phenylethanol (NPE) produced (S)-NPE (together with benzaldehyde and nitromethane, largely from the R enantiomer) in up to 99 % ee and with 47 % conversion. This is the fastest HNL-catalysed route known so far for the synthesis of a series of (S)-β-nitro alcohols. This approach widens the application of AtHNL for the synthesis not only of (R)- but also of (S)-β-nitro alcohols from the appropriate substrates. Without the need for the discovery of a new enzyme, but rather by use of a retro-Henry approach, it was used to generate a number of (S)-β-nitro alcohols by taking advantage of the substrate selectivity of AtHNL.
Collapse
Affiliation(s)
- D H Sreenivasa Rao
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500 046, India
| | - Santosh Kumar Padhi
- Biocatalysis and Enzyme Engineering Laboratory, Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500 046, India
| |
Collapse
|
21
|
Pickel TC, Karahalis GJ, Buru CT, Bacsa J, Scarborough CC. Synthesis of Previously Inaccessible Derivatives of 1,4,7-Tri
-R-1,4,7-Triazacyclononane, Including Chiral Examples, and a Rapid Synthesis of the HCl Salts of H3
tacn and H4
dtne. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801323] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thomas C. Pickel
- Department of Chemistry; Emory University; 1515 Dickey Dr. 30322 Atlanta GA USA
| | | | - Cassandra T. Buru
- Department of Chemistry; Emory University; 1515 Dickey Dr. 30322 Atlanta GA USA
| | - John Bacsa
- Department of Chemistry; Emory University; 1515 Dickey Dr. 30322 Atlanta GA USA
| | | |
Collapse
|
22
|
Zhang S, Li Y, Xu Y, Wang Z. Recent progress in copper catalyzed asymmetric Henry reaction. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
23
|
Milbeo P, Moulat L, Didierjean C, Aubert E, Martinez J, Calmès M. C
1
-Symmetric 1,2-Diaminobicyclo[2.2.2]octane Ligands in Copper-Catalyzed Asymmetric Henry Reaction: Catalyst Development and DFT Studies. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701452] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Pierre Milbeo
- IBMM; UMR 5247 CNRS-Université Montpellier-ENSCM; Place Eugène Bataillon 34095 Montpellier France
| | - Laure Moulat
- IBMM; UMR 5247 CNRS-Université Montpellier-ENSCM; Place Eugène Bataillon 34095 Montpellier France
| | - Claude Didierjean
- CNRS, CRM2; Université de Lorraine; Boulevard des Aiguillettes 54506 Nancy France
| | - Emmanuel Aubert
- CNRS, CRM2; Université de Lorraine; Boulevard des Aiguillettes 54506 Nancy France
| | - Jean Martinez
- IBMM; UMR 5247 CNRS-Université Montpellier-ENSCM; Place Eugène Bataillon 34095 Montpellier France
| | - Monique Calmès
- IBMM; UMR 5247 CNRS-Université Montpellier-ENSCM; Place Eugène Bataillon 34095 Montpellier France
| |
Collapse
|
24
|
Majinda RRT. An Update of Erythrinan Alkaloids and Their Pharmacological Activities. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2018; 107:95-159. [PMID: 30178271 DOI: 10.1007/978-3-319-93506-5_2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The period of the past 5 years has witnessed a remarkable increase in all of the number, structural variety, and complexity of erythrinan alkaloids reported. This structural diversity seems to be most pronounced in the alkaloids reported from the two species Erythrina arborescens and Erythrina variegata. Between them, work-up of these taxa yielded new polymeric (dimeric and trimeric) erythrinan alkaloids, a first example in one case where a normal 6,5,6,6-membered indoloisoquinoline spirocylic core has rearranged to a spiro-fused 6,5,7,6-skeleton. Furthermore, erythrinan alkaloids with a fifth ring containing a 2H-imidazole functionality were also reported for the first time, together with some new structures having an unusual substitution and with functionalities at positions C-3 and C-7 of the erythrinan core. This contribution has included 40 more erythrinan alkaloids that are either new or were omitted in the most recent major reviews on the same topic, leading to a total of 154 known erythrinan alkaloids to date. There are a few cases where the structures of the new alkaloids are contestable due to insufficient data having been obtained on isolation. To facilitate easier reference and identification, all structures having a common core have been placed in the same table or figure in this chapter.The reported pharmacological activities of the new and known erythrinan alkaloids documented have shown a considerable bias towards central nervous system and related activities. Other prominent activities that have been reported are antifeedant, insecticidal, cytotoxic, antiprotozoal, anti-inflammatory, antioxidant, antifungal, and antiviral effects. Erythrinan alkaloids generally seem to lack antibacterial activity. Several new polymeric alkaloids were found to lack cytotoxicity against a number of human cancer cell lines, although two of them showed moderate aphicidal activity and one exhibited weak to moderate acetylcholinesterase inhibition. The biological activity of erythrinan alkaloids seems to be influenced by basic substructural requirements, such as a conjugated diene (Δ1,2, Δ6,7) system and is modulated by the presence (or absence) of other groups in rings A, B, C, and D of the erythrinan core. The erythrinan core may provide potential leads to structures that eventually may be useful therapeutically.In recent years, a number of stereoselective chemical synthesis methods have been applied towards the erythinan alkaloids, and these are described in this contribution.
Collapse
|
25
|
Shimokawa J. Synthetic Studies on Heteropolycyclic Natural Products: Development of Divergent Strategy. Chem Pharm Bull (Tokyo) 2018; 66:105-115. [DOI: 10.1248/cpb.c17-00819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jun Shimokawa
- Graduate School of Pharmaceutical Sciences, Nagoya University
| |
Collapse
|
26
|
Garg Y, Kaur R, Kumar Pandey S. Organocatalytic Asymmetric Tandem α-Aminooxylation-Henry Reactions for the Synthesis of 1,2-Diols: Total Synthesis of (-)-l-threo-Sphinganine. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yuvraj Garg
- School of Chemistry and Biochemistry; Thapar University; -147001 Patiala India
| | - Ramandeep Kaur
- School of Chemistry and Biochemistry; Thapar University; -147001 Patiala India
| | | |
Collapse
|
27
|
Chanda T, Zhao JC. Recent Progress in Organocatalytic Asymmetric Domino Transformations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701059] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tanmoy Chanda
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
| | - John C.‐G. Zhao
- Department of Chemistry University of Texas at San Antonio One UTSA Circle San Antonio TX 78249-0698 USA
| |
Collapse
|
28
|
Aratikatla EK, Valkute TR, Puri SK, Srivastava K, Bhattacharya AK. Norepinephrine alkaloids as antiplasmodial agents: Synthesis of syncarpamide and insight into the structure-activity relationships of its analogues as antiplasmodial agents. Eur J Med Chem 2017; 138:1089-1105. [PMID: 28763644 DOI: 10.1016/j.ejmech.2017.07.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 07/21/2017] [Accepted: 07/22/2017] [Indexed: 11/26/2022]
Abstract
Syncarpamide 1, a norepinephrine alkaloid isolated from the leaves of Zanthoxylum syncarpum (Rutaceae) exhibited promising antiplasmodial activities against Plasmodium falciparum with reported IC50 values of 2.04 μM (D6 clone), 3.06 μM (W2 clone) and observed by us 3.90 μM (3D7 clone) and 2.56 μM (K1 clone). In continuation of our work on naturally occurring antimalarial compounds, synthesis of syncarpamide 1 and its enantiomer, (R)-2 using Sharpless asymmetric dihydroxylation as a key step has been accomplished. In order to study structure-activity-relationship (SAR) in detail, a library of 55 compounds (3-57), which are analogues/homologues of syncarpamide 1 were synthesized by varying the substituents on the aromatic ring, by changing the stereocentre at the C-7 and/or by varying the acid groups in the ester and/or amide side chain based on the natural product lead molecule and further assayed in vitro against 3D7 and K1 strains of P. falciparum to evaluate their antiplasmodial activities. In order to study the effect of position of functional groups on antiplasmodial activity profile, a regioisomer (S)-58 of syncarpamide 1 was synthesized however, it turned out to be inactive against both the strains. Two compounds, (S)-41 and its enantiomer, (R)-42 having 3,4,5-trimethoxy cinnamoyl groups as side chains showed better antiplasmodial activity with IC50 values of 3.16, 2.28 μM (3D7) and 1.78, 2.07 μM (K1), respectively than the natural product, syncarpamide 1. Three compounds (S)-13, (S)-17, (S)-21 exhibited antiplasmodial activities with IC50 values of 6.39, 6.82, 6.41 μM against 3D7 strain, 4.27, 7.26, 2.71 μM against K1 strain and with CC50 values of 147.72, 153.0, >200 μM respectively. The in vitro antiplasmodial activity data of synthesized library suggests that the electron density and possibility of resonance in both the ester and amide side chains increases the antiplasmodial activity as compared to the parent natural product 1. The natural product syncarpamide 1 and four analogues/homologues out of the synthesized library of 55, (S)-41, (R)-42, (S)-55 and (S)-57 were assayed in vivo assay against chloroquine-resistant P. yoelii (N-67) strain of Plasmodium. However, none of the five molecules, 1, (S)-41, (R)-42, (S)-55 and (S)-57 exhibited any promising in vivo antimalarial activity against P. yoelii (N-67) strain. Compounds 4, 6, 7 and 11 showed high cytotoxicities with CC50 values of 5.87, 5.08, 6.44 and 14.04 μM, respectively. Compound 6 was found to be the most cytotoxic as compared to the standard drug, podophyllotoxin whereas compounds 4 and 7 showed comparable cytotoxicities to podophyllotoxin.
Collapse
Affiliation(s)
- Eswar K Aratikatla
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL, Pune, 411 008, India
| | - Tushar R Valkute
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India
| | - Sunil K Puri
- Parasitology Division, CSIR-Central Drug Research Institute, Sector-10, Janakipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Kumkum Srivastava
- Parasitology Division, CSIR-Central Drug Research Institute, Sector-10, Janakipuram Extension, Sitapur Road, Lucknow, 226 031, India
| | - Asish K Bhattacharya
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-NCL, Pune, 411 008, India.
| |
Collapse
|
29
|
The synthesis of chiral tridentate ligands from l -proline and their application in the copper(II)-catalyzed enantioselective Henry reaction. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
30
|
Nováková G, Drabina P, Svoboda J, Sedlák M. Copper(II) complexes of 2-(pyridine-2-yl)imidazolidine-4-thione derivatives for asymmetric Henry reactions. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
31
|
Rossi S, Porta R, Brenna D, Puglisi A, Benaglia M. Stereoselective Catalytic Synthesis of Active Pharmaceutical Ingredients in Homemade 3D-Printed Mesoreactors. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612192] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Sergio Rossi
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Riccardo Porta
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Davide Brenna
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Alessandra Puglisi
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| | - Maurizio Benaglia
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milano Italy
| |
Collapse
|
32
|
Rossi S, Porta R, Brenna D, Puglisi A, Benaglia M. Stereoselective Catalytic Synthesis of Active Pharmaceutical Ingredients in Homemade 3D-Printed Mesoreactors. Angew Chem Int Ed Engl 2017; 56:4290-4294. [PMID: 28345159 DOI: 10.1002/anie.201612192] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/20/2017] [Indexed: 12/13/2022]
Abstract
3D-printed flow reactors were designed, fabricated from different materials (PLA, HIPS, nylon), and used for a catalytic stereoselective Henry reaction. The use of readily prepared and tunable 3D-printed reactors enabled the rapid screening of devices with different sizes, shapes, and channel dimensions, aimed at the identification of the best-performing reactor setup. The optimized process afforded the products in high yields, moderate diastereoselectivity, and up to 90 % ee. The method was applied to the continuous-flow synthesis of biologically active chiral 1,2-amino alcohols (norephedrine, metaraminol, and methoxamine) through a two-step sequence combining the nitroaldol reaction with a hydrogenation. To highlight potential industrial applications of this method, a multistep continuous synthesis of norephedrine has been realized. The product was isolated without any intermediate purifications or solvent switches.
Collapse
Affiliation(s)
- Sergio Rossi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Riccardo Porta
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Davide Brenna
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Alessandra Puglisi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| | - Maurizio Benaglia
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi, 19, 20133, Milano, Italy
| |
Collapse
|
33
|
Milbeo P, Moulat L, Didierjean C, Aubert E, Martinez J, Calmès M. Synthesis of Enantiopure 1,2-Diaminobicyclo[2.2.2]octane Derivatives, C1-Symmetric Chiral 1,2-Diamines with a Rigid Bicyclic Backbone. J Org Chem 2017; 82:3144-3151. [DOI: 10.1021/acs.joc.7b00122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Pierre Milbeo
- IBMM,
UMR-5247, CNRS, Université Montpellier, ENSCM, Place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Laure Moulat
- IBMM,
UMR-5247, CNRS, Université Montpellier, ENSCM, Place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Claude Didierjean
- CRM2,
UMR 7036, CNRS, Université de Lorraine, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Emmanuel Aubert
- CRM2,
UMR 7036, CNRS, Université de Lorraine, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Jean Martinez
- IBMM,
UMR-5247, CNRS, Université Montpellier, ENSCM, Place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Monique Calmès
- IBMM,
UMR-5247, CNRS, Université Montpellier, ENSCM, Place E. Bataillon, 34095 Montpellier Cedex 5, France
| |
Collapse
|
34
|
Colin O, Boufroura H, Thomassigny C, Perato S, Gaucher A, Marrot J, Prim D. Modular Urea-Based Catalytic Platforms Bearing Flexible Pyridylmethylamine and Rigid Pyridyl-Imidazolidine Fragments. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601271] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Olivier Colin
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Hamza Boufroura
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Christine Thomassigny
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Serge Perato
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Anne Gaucher
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Jérôme Marrot
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| | - Damien Prim
- University of Versailles St-Quentin-en-Yvelines; Institut Lavoisier de Versailles UMR CNRS 8180; 45, avenue des Etats-Unis 78035 Versailles France
| |
Collapse
|
35
|
Chinnaraja E, Arunachalam R, Subramanian PS. Enantio- and Diastereoselective Synthesis of β-Nitroalcohol via Henry Reaction Catalyzed by Cu(II), Ni(II), Zn(II) Complexes of Chiral BINIM Ligands. ChemistrySelect 2016. [DOI: 10.1002/slct.201601186] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- E. Chinnaraja
- Inorganic Materials and Catalysis Devision; CSIR-Central salt and marine Chemicals Research institute (CSIR-CSMCRI); Bhavnagar Gujarat - 364002 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CSMCRI; Bhavnagar Gujarat- 364002 India
| | - R. Arunachalam
- Inorganic Materials and Catalysis Devision; CSIR-Central salt and marine Chemicals Research institute (CSIR-CSMCRI); Bhavnagar Gujarat - 364002 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CSMCRI; Bhavnagar Gujarat- 364002 India
| | - P. S. Subramanian
- Inorganic Materials and Catalysis Devision; CSIR-Central salt and marine Chemicals Research institute (CSIR-CSMCRI); Bhavnagar Gujarat - 364002 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CSMCRI; Bhavnagar Gujarat- 364002 India
| |
Collapse
|
36
|
Shaw S, White JD. cis-2,5-Diaminobicyclo[2.2.2]octane, a New Chiral Scaffold for Asymmetric Catalysis. Acc Chem Res 2016; 49:1825-34. [PMID: 27505459 DOI: 10.1021/acs.accounts.6b00286] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Catalysis of widely used chemical transformations in which the goal is to obtain the product as a pure enantiomer has become a major preoccupation of synthetic organic chemistry over the past three decades. A large number of chiral entities has been deployed to this end, many with considerable success, but one of the simplest and most effective catalytic systems to have emerged from this effort is that based on a chiral diamine, specifically trans-1,2-diaminocyclohexane. While there have been attempts to improve upon this scaffold in asymmetric synthesis, few have gained the recognition needed to take their place alongside this classic diamine. The challenge is to design a scaffold that retains the assets of trans-1,2-diaminocyclohexane while enhancing its intrinsic chirality and maximizing the scope of its applications. It occurred to us that cis-2,5-diaminobicyclo[2.2.2]octane could be such a scaffold. Synthesis of this diamine in enantiopure form was completed from benzoic acid, and the (1R,2R,4R,5R) enantiomer was used in all subsequent experiments in this laboratory. Condensation of the diamine with various salicyl aldehydes generated imine derivatives which proved to be excellent "salen" ligands for encapsulation of transition and other metals. In total, 12 salen-metal complexes were prepared from this ligand, many of which were crystalline and three of which, along with the ligand itself, yielded to X-ray crystallography. An advantage of this ligand is that it can be tuned sterically or electronically to confer specific catalytic properties on the salen-metal complex, and this feature was used in several applications of our salen-metal complexes in asymmetric synthesis. Thus, replacement of one of the tert-butyl groups in each benzenoid ring of the salen ligand by a methoxy substituent enhanced the catalytic efficiency of a cobalt(II)-salen complex used in asymmetric cyclopropanation of 1,1-disubstituted alkenes; the catalyst was employed in an improved synthesis of the cyclopropane-containing drug candidate Synosutine. Reduction of the pair of imine functions of the ligand to secondary amines permitted formation of a copper(I)-salen complex that catalyzed asymmetric Henry ("nitroaldol") condensation with excellent efficiency; this catalyst was applied in an economical synthesis of three drugs of the "beta-blocker" family including (S)-Propanolol. Chromium(II) and chromium(III) complexes were prepared from our bicyclooctane-salen ligand bearing a pair of tert-butyl groups in each benzenoid ring. These complexes were found to catalyze, respectively, enantioselective formation of homoallylic alcohols from Nozaki-Hiyama-Kishi allylation of aromatic aldehydes and dihydropyranones from hetero-Diels-Alder cycloaddition. Plausible reaction models emerging from knowledge of the absolute configuration of products from each of these reactions place the metal-coordinated substrate in a quadrant beneath the bicyclooctane scaffold so that one face of the substrate is blocked by an aryl ring of the salen ligand while the opposite face is left open to attack. The consistent and predictable stereochemical outcome from reactions catalyzed by salen-metal complexes derived from our diaminobicyclo[2.2.2]octane scaffold adds a valuable new dimension to asymmetric synthesis.
Collapse
Affiliation(s)
- Subrata Shaw
- Department
of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - James. D. White
- Department
of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| |
Collapse
|
37
|
Lu G, Zheng F, Wang L, Guo Y, Li X, Cao X, Wang C, Chi H, Dong Y, Zhang Z. Asymmetric Henry reaction catalyzed by Cu(II)-based chiral amino alcohol complexes with C2-symmetry. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.06.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
38
|
Synthesis and analgesic activity of new α-truxillic acid derivatives with monoterpenoid fragments. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1593-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
39
|
Umihara H, Yoshino T, Shimokawa J, Kitamura M, Fukuyama T. Development of a Divergent Synthetic Route to the Erythrina Alkaloids: Asymmetric Syntheses of 8-Oxo-erythrinine, Crystamidine, 8-Oxo-erythraline, and Erythraline. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hirotatsu Umihara
- Graduate School of Pharmaceutical Sciences; University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Tomomi Yoshino
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| | - Jun Shimokawa
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| | - Tohru Fukuyama
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| |
Collapse
|
40
|
Kaldun J, Prause F, Scharnagel D, Freitag F, Breuning M. Evaluation of 5-cis-Substituted Prolinamines as Ligands in Enantioselective, Copper-Catalyzed Henry Reactions. ChemCatChem 2016. [DOI: 10.1002/cctc.201600240] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Johannes Kaldun
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Felix Prause
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Dagmar Scharnagel
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Frederik Freitag
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| | - Matthias Breuning
- Organic Chemistry Laboratory; University of Bayreuth; Universitätsstraße 30 95447 Bayreuth Germany
| |
Collapse
|
41
|
Umihara H, Yoshino T, Shimokawa J, Kitamura M, Fukuyama T. Development of a Divergent Synthetic Route to the Erythrina Alkaloids: Asymmetric Syntheses of 8-Oxo-erythrinine, Crystamidine, 8-Oxo-erythraline, and Erythraline. Angew Chem Int Ed Engl 2016; 55:6915-8. [DOI: 10.1002/anie.201602650] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Hirotatsu Umihara
- Graduate School of Pharmaceutical Sciences; University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Tomomi Yoshino
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| | - Jun Shimokawa
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| | - Tohru Fukuyama
- Graduate School of Pharmaceutical Sciences; Nagoya University; Furo-cho, Chikusa Nagoya, Aichi 464-8601 Japan
| |
Collapse
|
42
|
Jiao T, Tu J, Li G, Xu F. Cu-catalyzed asymmetric Henry reaction promoted by chiral camphor Schiff bases. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.02.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
43
|
Reinscheid F, Reinscheid U. Stereochemical analysis of menthol and menthylamine isomers using calculated and experimental optical rotation data. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
44
|
Ashokkumar V, Duraimurugan K, Siva A. A new series of bipyridine based chiral organocatalysts for enantioselective Henry reaction. NEW J CHEM 2016. [DOI: 10.1039/c6nj01045h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We report the design and synthesis of a new series of binaphthol based chiral organocatalysts which can act as metal-free organocatalysts in the enantioselective Henry reaction with very good yield and ee.
Collapse
Affiliation(s)
| | | | - Ayyanar Siva
- School of Chemistry
- Madurai Kamaraj University
- Madurai-625 021
- India
| |
Collapse
|
45
|
Synthesis and Biological Activities of Camphor Hydrazone and Imine Derivatives. Sci Pharm 2015; 84:467-483. [PMID: 28117313 PMCID: PMC5064238 DOI: 10.3390/scipharm84030467] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/18/2015] [Indexed: 11/16/2022] Open
Abstract
Both sonochemical and classical methodologies have been employed to convert camphor, 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one, C₉H16C=O, into a number of derivatives including hydrazones, C₉H16C=N-NHAr 3, imines, C₉H16C=N-R 7, and the key intermediate nitroimine, C₉H16C=N-NO₂ 6. Reactions of nitroamine 6 with nucleophiles by classical methods provided the desired compounds in a range of yields. In evaluations of activity against Mycobacterium tuberculosis, compound 7j exhibited the best activity (minimal inhibitory concentration (MIC) = 3.12 µg/mL), comparable to that of the antitubercular drug ethambutol. The other derivatives displayed modest antimycobacterial activities at 25-50 µg/mL. In in vitro tests against cancer cell lines, none of the synthesized camphor compounds exhibited cytotoxic activities.
Collapse
|
46
|
l-Proline derived arylmethanamine ligands and their application in the copper-catalyzed asymmetric Henry reaction: a rare example of a Cu-complex with a dicopper tetraacetate core. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
47
|
Xu F, Lei C, Yan L, Tu J, Li G. Copper-Chiral Camphor β
-Amino Alcohol Complex Catalyzed Asymmetric Henry Reaction. Chirality 2015; 27:761-5. [DOI: 10.1002/chir.22498] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 07/19/2015] [Indexed: 01/11/2023]
Affiliation(s)
- Feng Xu
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Chao Lei
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Lei Yan
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Jingxuan Tu
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| | - Gaoqiang Li
- Laboratory of Macromolecular Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an Shaanxi People's Republic of China
| |
Collapse
|
48
|
Scharnagel D, Müller A, Prause F, Eck M, Goller J, Milius W, Breuning M. The First Modular Route to Core-Chiral Bispidine Ligands and Their Application in Enantioselective Copper(II)-Catalyzed Henry Reactions. Chemistry 2015; 21:12488-500. [DOI: 10.1002/chem.201502090] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Indexed: 12/16/2022]
|
49
|
Dvornikova IA, Buravlev EV, Suponitskii KY, Chukicheva IY, Kutchin AV. Synthesis of chiral 1,2-diamines from α-pinene and their use in asymmetric nitroaldol reaction. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015040041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
50
|
Filippova L, Stenstrøm Y, Hansen TV. Cu (II)-catalyzed asymmetric henry reaction with a novel C1-symmetric aminopinane-derived ligand. Molecules 2015; 20:6224-36. [PMID: 25859780 PMCID: PMC6272271 DOI: 10.3390/molecules20046224] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 03/30/2015] [Accepted: 04/03/2015] [Indexed: 11/17/2022] Open
Abstract
A novel C1-symmetric dinitrogen ligand was synthesized in high yield from commercially available (1R,2R,3R,5S)-(−)-isopinocampheylamine and 1-methyl-2-imidazolecarboxaldehyde. In combination with Cu(OAc)2∙H2O, this new ligand promote the reaction between nitromethane and aliphatic aldehydes with high yields (up to 97%) and moderate enantioselectivities (up to 67% ee). The reactions with benzaldehyde required prolonged reaction time that resulted in diminished yields, but accompanied with ee-values in the 55%–76% range.
Collapse
Affiliation(s)
- Liudmila Filippova
- Department of Chemistry, Biology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway.
| | - Yngve Stenstrøm
- Department of Chemistry, Biology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway.
| | - Trond Vidar Hansen
- Department of Chemistry, Biology and Food Science, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway.
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, N-0316 Oslo, Norway.
| |
Collapse
|