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Dyachenko IV, Dyachenko VD, Dorovatovskii PV, Khrustalev VN, Nenajdenko VG. New Synthesis of Tetrahydroisoquinolines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022050037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sayed EM, Hassanien R, Farhan N, Aly HF, Mahmoud K, Mohamed SK, Mague JT, Bakhite EA. Nitrophenyl-Group-Containing Heterocycles. I. Synthesis, Characterization, Crystal Structure, Anticancer Activity, and Antioxidant Properties of Some New 5,6,7,8-Tetrahydroisoquinolines Bearing 3(4)-Nitrophenyl Group. ACS OMEGA 2022; 7:8767-8776. [PMID: 35309417 PMCID: PMC8928486 DOI: 10.1021/acsomega.1c06994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Regioselective cyclocondensation of 2,4-diacetyl-5-hydroxy-5-methyl-3-(3-nitrophenyl/4-nitrophenyl)cyclohexanones 1a,b with cyanothioacetamide afforded the corresponding 7-acetyl-4-cyano-1,6-dimethyl-6-hydroxy-8-(3- and -4-nitrophenyl)-5,6,7,8-tetrahydrosoquinoline-3(2H)-thiones 2a,b. Reaction of compounds 2a,b with ethyl iodide, 2-chloroacetamide (4a), or its N-aryl derivatives 4b-e in the presence of sodium acetate trihydrate gave 3-ethylthio-5,6,7,8-tetrahydroisoquinoline 3 and (5,6,7,8-tetrahydroisoquinolin-3-ylthio)acetamides 5a-i, respectively. Cyclization of compounds 5b-d,f,g into their isomeric 1-amino-6,7,8,9-tetrahydrothieno[2,3-c]isoquinoline-2-carboxamides 6b-d,f,g was achieved by heating in ethanol containing a catalytic amount of sodium carbonate. Structures of all synthesized compounds were characterized on the basis of their elemental analyses and spectroscopic data. The crystal structure of 5,6,7,8-tetrahydroisoquinoline 5d was determined by X-ray diffraction analysis. In addition, the biological evaluation of some synthesized compounds as anticancer agents was performed, and only six compounds showed moderate to strong activity against PACA2 (pancreatic cancer cell line) and A549 (lung carcinoma cell line). Moreover, the antioxidant properties of most synthesized compounds were examined. The results revealed high antioxidant activity for the most tested compounds.
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Affiliation(s)
- Eman M. Sayed
- Chemistry
Department, Faculty of Science, New Valley
University, 72511 El-Kharja, Egypt
| | - Reda Hassanien
- Chemistry
Department, Faculty of Science, New Valley
University, 72511 El-Kharja, Egypt
| | - Nasser Farhan
- Chemistry
Department, Faculty of Science, New Valley
University, 72511 El-Kharja, Egypt
| | - Hanan F. Aly
- Department
of Therapeutic Chemistry, National Research
Centre, El-Behooth Street, 12622 Dokki, Cairo, Egypt
| | - Khaled Mahmoud
- Pharmacognosy
Department, National Research Centre, El-Behooth Street, 12622 Dokki, Cairo, Egypt
| | - Shaaban K. Mohamed
- Chemistry
and Environmental Division, Manchester Metropolitan
University, Manchester M1 5GD, England
- Chemistry
Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt
| | - Joel T. Mague
- Department
of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Etify A. Bakhite
- Chemistry
Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt
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Rodrigalvarez J, Reeve LA, Miró J, Gaunt MJ. Pd(II)-Catalyzed Enantioselective C(sp 3)-H Arylation of Cyclopropanes and Cyclobutanes Guided by Tertiary Alkylamines. J Am Chem Soc 2022; 144:3939-3948. [PMID: 35212219 PMCID: PMC9097487 DOI: 10.1021/jacs.1c11921] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Strained aminomethyl-cycloalkanes are a recurrent scaffold in medicinal chemistry due to their unique structural features that give rise to a range of biological properties. Here, we report a palladium-catalyzed enantioselective C(sp3)-H arylation of aminomethyl-cyclopropanes and -cyclobutanes with aryl boronic acids. A range of native tertiary alkylamine groups are able to direct C-H cleavage and forge carbon-aryl bonds on the strained cycloalkanes framework as single diastereomers and with excellent enantiomeric ratios. Central to the success of this strategy is the use of a simple N-acetyl amino acid ligand, which not only controls the enantioselectivity but also promotes γ-C-H activation of over other pathways. Computational analysis of the cyclopalladation step provides an understanding of how enantioselective C-H cleavage occurs and revealed distinct transition structures to our previous work on enantioselective desymmetrization of N-isobutyl tertiary alkylamines. This straightforward and operationally simple method simplifies the construction of functionalized aminomethyl-strained cycloalkanes, which we believe will find widespread use in academic and industrial settings relating to the synthesis of biologically active small molecules.
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Affiliation(s)
- Jesus Rodrigalvarez
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Luke A Reeve
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Javier Miró
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Matthew J Gaunt
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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Liu H, Liao WQ, Lin RX, Fan L, Sun J, Chen HY, Liu F, Yang AP. Hasubanan alkaloids with anti-inflammatory activity from Stephania longa. Nat Prod Res 2021; 36:2800-2805. [PMID: 34018446 DOI: 10.1080/14786419.2021.1928118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Two new hasubanan alkaloids, stephalonester A (1) and stephalonester B (2), together with four known compounds, stephalonine E (3), longanone (4), cephatonine (5), and prostephabyssine (6) were isolated from the whole plant of Stephania longa. Their structures were determined by HR-ESI-MS, 1 D and 2 D NMR, ECD calculations, as well as by comparison with literature values. All compounds were evaluated for their anti-inflammatory activity in vitro. Compounds 4, 5, and 6 exhibited significantly inhibitory effects on TNF-α and IL-6 production with IC50 values range from 6.54 to 30.44 µM.
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Affiliation(s)
- Hui Liu
- School of Medicine, Foshan University, Foshan, P. R. China.,Physical Science Public Platform, School of Medicine, Foshan University, Foshan, P. R. China
| | - Wan-Qin Liao
- School of Medicine, Foshan University, Foshan, P. R. China.,Physical Science Public Platform, School of Medicine, Foshan University, Foshan, P. R. China
| | - Rong-Xiao Lin
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Lixia Fan
- School of Medicine, Foshan University, Foshan, P. R. China.,Physical Science Public Platform, School of Medicine, Foshan University, Foshan, P. R. China
| | - Jinyan Sun
- School of Medicine, Foshan University, Foshan, P. R. China
| | - Hong-Yuan Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, P. R. China
| | - Fang Liu
- School of Medicine, Foshan University, Foshan, P. R. China
| | - An-Ping Yang
- School of Medicine, Foshan University, Foshan, P. R. China
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Slavov S, Mattes W, Beger RD. Determination of structural factors affecting binding to mu, kappa and delta opioid receptors. Arch Toxicol 2020; 94:1215-1227. [PMID: 32107589 DOI: 10.1007/s00204-020-02684-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/21/2020] [Indexed: 11/30/2022]
Abstract
Addiction is a complex behavioral phenomenon in which naturally occurring or synthetic chemicals modulate the response of the reward system through their binding to a variety of neuroreceptors, resulting in compulsive substance-seeking and use despite harmful consequences to the individual. Among these, the opioid receptor (OR) family and more specifically, the mu-opioid receptor (MOR) subtype plays a critical role in the addiction to powerful prescription and illicit drugs such as hydrocodone, oxycodone, fentanyl, cocaine, and methamphetamine (Contet et al. in Curr Opin Neurobiol 14(3):370-378, 2004). Conversely, agonists binding to kappa (KOR) and antagonists binding to delta opioid receptors (DOR) have been reported to induce negative reinforcing effects. As more than 700 new psychoactive substances were illegally sold between 2009 and 2016 (DEA-DCT-DIR-032-18), most of them lacking basic toxicological and pharmacological profiles, molecular modeling approaches that could quickly and reliably fill the gaps in our knowledge would be highly desirable tools for determining the effects of these synthetics. Here, we report accurate 3D-spectrometric data-activity relationship classification models for large and diverse datasets of MOR, KOR and DOR binders with areas under the receiver operating characteristic curve for the "blind" prediction sets exceeding 0.88. Structural features associated with (selective) binding to MOR, KOR and/or DOR were identified. These models could assist regulatory agencies in evaluating the health risks associated with the use of unprofiled substances as well as to help the pharmaceutical industry in its search for new drugs to combat addiction.
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Affiliation(s)
- Svetoslav Slavov
- Division of Systems Biology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR, 72079, USA.
| | - William Mattes
- Division of Systems Biology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR, 72079, USA
| | - Richard D Beger
- Division of Systems Biology, National Center for Toxicological Research, US Food and Drug Administration, 3900 NCTR Rd., Jefferson, AR, 72079, USA
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Dyachenko IV, Dyachenko VD. Cycloalka[c]pyridine derivatives. Methods of synthesis and chemical properties. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1070428017120016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Prezzavento O, Arena E, Sánchez-Fernández C, Turnaturi R, Parenti C, Marrazzo A, Catalano R, Amata E, Pasquinucci L, Cobos EJ. (+)-and (-)-Phenazocine enantiomers: Evaluation of their dual opioid agonist/σ 1 antagonist properties and antinociceptive effects. Eur J Med Chem 2016; 125:603-610. [PMID: 27721146 DOI: 10.1016/j.ejmech.2016.09.077] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 09/17/2016] [Accepted: 09/24/2016] [Indexed: 01/14/2023]
Abstract
cis-N-Substituted N-normetazocine enantiomers possess peculiar pharmacological profiles. Indeed, dextro enantiomers bind with high affinity σ1 receptor while opposite enantiomers bind opioid receptors. In spite of their stereochemistry, cis-N-2-phenylethyl N-normetazocine (phenazocine) enantiomers showed mixed opioid/σ1 receptor profiles and a significant in vivo analgesia. To the best of our knowledge, there is no information available regarding the evaluation of σ1 pharmacological profile in the antinociceptive effects of (+)- and (-)-phenazocine. Therefore, the present study was designed to ascertain this component by in vitro and in vivo studies. In particular, we tested the σ1 affinity of both enantiomers by a predictive binding assay in absence or presence of phenytoin (DPH). Our results showed that DPH (1 mM) did not increase the σ1 receptor affinity of (+)-and (-)-phenazocine (Ki = 3.8 ± 0.4 nM, Ki = 85 ± 2.0 nM, respectively) suggesting a σ1 antagonist profile of both enantiomers. This σ1 antagonistic component of two phenazocine enantiomers was corroborated by in vivo studies in which the selective σ1 receptor agonist PRE-084, was able to unmask their σ1 antagonistic component associated with the opioid activity. The σ1 antagonistic component of (+)- and (-)-phenazocine may justify their analgesic activity and it suggests that they may constitute useful lead compounds to develop new ligands with this dual activity.
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Affiliation(s)
- O Prezzavento
- Department of Drug Sciences, Medicinal Chemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - E Arena
- Department of Drug Sciences, Medicinal Chemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - C Sánchez-Fernández
- Department of Pharmacology, School of Medicine and Institute of Neuroscience, Biomedical Research Center, University of Granada, Parque Tecnológico de Ciencias de la Salud, 18100 Armilla, Granada, Spain
| | - R Turnaturi
- Department of Drug Sciences, Medicinal Chemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - C Parenti
- Department of Drug Sciences, Pharmacology and Toxicology Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - A Marrazzo
- Department of Drug Sciences, Medicinal Chemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - R Catalano
- Department of Physics and Astronomy, University of Catania, Via S. Sofia 64, 95123 Catania, Italy
| | - E Amata
- Department of Drug Sciences, Medicinal Chemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - L Pasquinucci
- Department of Drug Sciences, Medicinal Chemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - E J Cobos
- Department of Pharmacology, School of Medicine and Institute of Neuroscience, Biomedical Research Center, University of Granada, Parque Tecnológico de Ciencias de la Salud, 18100 Armilla, Granada, Spain; Teófilo Hernando Institute for Drug Discovery, 28029, Madrid, Spain
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An efficient synthesis of 3-OBn-6β,14-epoxy-bridged opiates from naltrexone and identification of a related dual MOR inverse agonist/KOR agonist. Bioorg Med Chem Lett 2012; 22:6801-5. [DOI: 10.1016/j.bmcl.2012.06.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 06/08/2012] [Accepted: 06/11/2012] [Indexed: 12/14/2022]
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Abstract
This paper is the thirty-third consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2010 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, USA.
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Carroll AR, Arumugan T, Redburn J, Ngo A, Guymer GP, Forster PI, Quinn RJ. Hasubanan alkaloids with delta-opioid binding affinity from the aerial parts of Stephania japonica. JOURNAL OF NATURAL PRODUCTS 2010; 73:988-991. [PMID: 20426456 DOI: 10.1021/np100009j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Two new (1 and 2) and six known hasubanan alkaloids (3-8) and one morphinane alkaloid (9) were isolated from the leaves of the North Queensland rainforest vine Stephania japonica. The structures of 1 and 2 were determined by interpretation of their 1D and 2D NMR spectra. The hasubanan alkaloids showed affinity for the human delta-opioid receptor with IC(50) values ranging from 0.7 to 46 microM. The compounds were also tested for their affinity to micro- and kappa-opioid receptors and shown to be inactive against kappa-opioid receptors, but were of similar potency against the micro-opioid receptor.
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Affiliation(s)
- Anthony R Carroll
- Eskitis Institute, Griffith University, Brisbane, Queensland 4111, Australia
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