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Xu K, Chen W, Chen X, Wang B, Huang J, Tian X. Organocatalytic asymmetric Friedel–Crafts alkylation/hemiketalization/lactonization cascade reactions: highly enantioselective synthesis of furo[2,3-b]benzofuranones. Org Chem Front 2020. [DOI: 10.1039/d0qo00475h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A highly diastereo- and enantioselective organocatalytic Friedel–Crafts alkylation/hemiketalization/lactonization cascade reaction generating furo[2,3-b]benzofuranones in good to excellent yields with high stereoselectivities.
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Affiliation(s)
- Kunhua Xu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & The Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- China
| | - Wenming Chen
- Department of Pharmaceutical Production Center
- The First Affiliated Hospital of Hunan University of Chinese Medicine
- Changsha
- China
| | - Xu Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & The Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- China
| | - Biao Wang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & The Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- China
| | - Jun Huang
- Sino-French Hoffmann Institute
- Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology
- The Second Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
| | - Xu Tian
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease
- School of Pharmaceutical Sciences & The Fifth Affiliated Hospital
- Guangzhou Medical University
- Guangzhou
- China
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Purgatorio R, de Candia M, Catto M, Carrieri A, Pisani L, De Palma A, Toma M, Ivanova OA, Voskressensky LG, Altomare CD. Investigating 1,2,3,4,5,6-hexahydroazepino[4,3-b]indole as scaffold of butyrylcholinesterase-selective inhibitors with additional neuroprotective activities for Alzheimer's disease. Eur J Med Chem 2019; 177:414-424. [PMID: 31158754 DOI: 10.1016/j.ejmech.2019.05.062] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 05/13/2019] [Accepted: 05/23/2019] [Indexed: 12/19/2022]
Abstract
Due to the role of butyrylcholinesterase (BChE) in acetylcholine hydrolysis in the late stages of the Alzheimer's disease (AD), inhibitors of butyrylcholinesterase (BChE) have been recently envisaged, besides acetylcholinesterase (AChE) inhibitors, as candidates for treating mild-to-moderate AD. Herein, synthesis and AChE/BChE inhibition activity of some twenty derivatives of 1,2,3,4,5,6-hexahydroazepino[4,3-b]indole (HHAI) is reported. Most of the newly synthesized HHAI derivatives achieved the inhibition of both ChE isoforms with IC50s in the micromolar range, with a structure-dependent selectivity toward BChE. Apparently, molecular volume and lipophilicity do increase selectivity toward BChE, and indeed the N2-(4-phenylbutyl) HHAI derivative 15d, which behaves as a mixed-type inhibitor, resulted the most potent (IC50 0.17 μM) and selective (>100-fold) inhibitor toward either horse serum and human BChE. Moreover, 15d inhibited in vitro self-induced aggregation of neurotoxic amyloid-β (Aβ) peptide and displayed neuroprotective effects in neuroblastoma SH-SY5Y cell line, significantly recovering (P < 0.001) cell viability when impaired by Aβ1-42 and hydrogen peroxide insults. Overall, this study highlighted HHAI as useful and versatile scaffold for developing new small molecules targeting some enzymes and biochemical pathways involved in the pathogenesis of AD.
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Affiliation(s)
- Rosa Purgatorio
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Modesto de Candia
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy.
| | - Marco Catto
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Antonio Carrieri
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Leonardo Pisani
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Annalisa De Palma
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Maddalena Toma
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Olga A Ivanova
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russian Federation
| | - Leonid G Voskressensky
- Organic Chemistry Department, RUDN University, Miklukho-Maklai St, 6, Moscow, 117198, Russian Federation
| | - Cosimo D Altomare
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
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Varlamov AV, Guranova NI, Borisova TN, Sorokina EA, Aksenov AV, Voskressensky LG. Interaction of condensed tetrahydropyrido[4,3-d]pyrimidin-4-ones with dehydrobenzene – synthesis of 6-vinylpyrimidinones fused with five-membered heterocycle containing two or three heteroatoms. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2250-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Physicochemical properties and antimicrobial activity of new spirocyclic thieno[2,3-d]pyrimidin-4(3H)-one derivatives. Chem Heterocycl Compd (N Y) 2017. [DOI: 10.1007/s10593-017-2057-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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