1
|
Abstract
Herein, we report the first asymmetric total synthesis of iheyamine B from 2,2'-bisindoloazepinone using the stereoselective construction of the trans-vicinal 2-oxopropyl moiety in the azepine scaffold. The asymmetric decarboxylative allylic alkylation provided the α-allylated 2,2'-bisindoloazepinone intermediate. The subsequent conversion of the lactam moiety into another allyl group in a trans-selective manner followed by Wacker oxidation of each allyl unit to the corresponding 2-oxopropyl group completed the total synthesis of iheyamine B.
Collapse
Affiliation(s)
- Jiye Jeon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Cheol-Hong Cheon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| |
Collapse
|
2
|
Charaschanya M, Maskrey TS, LaPorte MG, Janjic JM, Wipf P. Synthesis and Optimization of Nitroxide-Based Inhibitors of Ferroptotic Cell Death in Cancer Cells and Macrophages. ACS Med Chem Lett 2022; 13:403-408. [PMID: 35300093 PMCID: PMC8919392 DOI: 10.1021/acsmedchemlett.1c00561] [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: 10/13/2021] [Accepted: 01/31/2022] [Indexed: 11/30/2022] Open
Abstract
JP4-039 is an alkene peptide isostere that acts as a low-micromolar inhibitor of erastin- and RSL-3-induced ferroptotic cell death in the HT-1080 cell line. In this work, we have developed new synthetic strategies that allow access to analogues of this lead structure. Enantioselective vinylogous Mannich or cross-metathesis reactions were key to the preparation of a series of analogues that culminated in the preparation of the ca. 30-fold more potent analogue (S)-6c. Structure-activity relationship analyses used both HT-1080 cells and a luminescence-based ferroptosis assay in RAW 264.7 macrophages. In particular, α,α-disubstituted alkene peptide isosteres (Rα ≠ H) were found to exceed the potency of the corresponding glycine (Rα = H) derivatives.
Collapse
Affiliation(s)
- Manwika Charaschanya
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Taber S Maskrey
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Matthew G LaPorte
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jelena M Janjic
- Pharmaceutical Sciences, Duquesne University School of Pharmacy, 415 Mellon Hall, Pittsburgh, Pennsylvania 15282, United States.,Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| |
Collapse
|
3
|
Park J, Park S, Jang GS, Kim RH, Jung J, Woo SK. Weak base-promoted selective rearrangement of oxaziridines to amides via visible-light photoredox catalysis. Chem Commun (Camb) 2021; 57:9995-9998. [PMID: 34486625 DOI: 10.1039/d1cc03855a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective rearrangement of oxaziridines to amides via a single electron transfer (SET) pathway is unexplored. In this study, we present a weak base-promoted selective rearrangement of oxaziridines to amides via visible-light photoredox catalysis. The developed method shows excellent functional group tolerance with a broad substrate scope and good to excellent yields. Furthermore, control experiments and density functional theory (DFT) calculations are performed to gain insight into the reactivity and selectivity.
Collapse
Affiliation(s)
- Jin Park
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea.
| | - Sehoon Park
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea.
| | - Gwang Seok Jang
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea.
| | - Ran Hui Kim
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea.
| | - Jaehoon Jung
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea.
| | - Sang Kook Woo
- Department of Chemistry, University of Ulsan, 93 Daehak-Ro, Nam-Gu, Ulsan 44610, Korea.
| |
Collapse
|
4
|
Philip RM, Treesa GSS, Saranya S, Anilkumar G. Applications of aryl-sulfinamides in the synthesis of N-heterocycles. RSC Adv 2021; 11:20591-20600. [PMID: 35479913 PMCID: PMC9033961 DOI: 10.1039/d1ra04099e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 06/01/2021] [Indexed: 11/21/2022] Open
Abstract
Enantiopure aryl-sulfinamides are important chiral auxiliaries in the asymmetric synthesis of amines and their derivatives. Here, we provide an overview of arylsulfinamide mediated asymmetric methods towards N-heterocycle synthesis. This methodology through sulfinylimines offers general access to structurally diverse piperidines, pyrrolidines, aziridines and their derivatives which represent the structural motif of many natural products and therapeutically important compounds. The review covers articles from 2006–2020 and we have categorized the review based on the ring size as 3-, 5-, and 6- membered heterocycles and their derivatives. The review comprehends the usage of arylsulfinamides for the construction of diverse N-heterocycles like piperidines, pyrrolidines, aziridines, and their fused derivatives.![]()
Collapse
Affiliation(s)
- Rose Mary Philip
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India (+91) 481-2731036
| | - G S Susan Treesa
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India (+91) 481-2731036
| | - Salim Saranya
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India (+91) 481-2731036
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India (+91) 481-2731036.,Advanced Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India.,Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University Priyadarsini Hills P O Kottayam Kerala 686560 India
| |
Collapse
|
5
|
Zhang G, Alshreimi AS, Alonso L, Antar A, Yu H, Islam SM, Anderson LL. Nitrone and Alkyne Cascade Reactions for Regio‐ and Diastereoselective 1‐Pyrroline Synthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Guanqun Zhang
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Abdullah S. Alshreimi
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Laura Alonso
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Alan Antar
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Hsien‐Cheng Yu
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Shahidul M. Islam
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| | - Laura L. Anderson
- Department of Chemistry University of Illinois at Chicago 845 W Taylor St. MC 111 Chicago IL 60607 USA
| |
Collapse
|
6
|
Zhang G, Alshreimi AS, Alonso L, Antar A, Yu HC, Islam SM, Anderson LL. Nitrone and Alkyne Cascade Reactions for Regio- and Diastereoselective 1-Pyrroline Synthesis. Angew Chem Int Ed Engl 2021; 60:13089-13097. [PMID: 33763941 DOI: 10.1002/anie.202101511] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/06/2021] [Indexed: 12/22/2022]
Abstract
The synthesis of 1-pyrrolines from N-alkenylnitrones and alkynes has been explored as a retrosynthetic alternative to traditional approaches. These cascade reactions are formal [4+1] cycloadditions that proceed through a proposed dipolar cycloaddition and N-alkenylisoxazoline [3,3']-sigmatropic rearrangement. A variety of cyclic alkynes and terminal alkynes have been shown to undergo the transformation with N-alkenylnitrones under mild conditions to provide the corresponding spirocyclic and densely substituted 1-pyrrolines with high regio- and diastereoselectivity. Mechanistic studies provide insight into the balance of steric and electronic effects that promote the cascade process and control the diastereo- and regioisomeric preferences of the 1-pyrroline products. Diastereoselective derivatization of the 1-pyrrolines prepared by the cascade reaction demonstrate the divergent synthetic utility of the new method.
Collapse
Affiliation(s)
- Guanqun Zhang
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Abdullah S Alshreimi
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Laura Alonso
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Alan Antar
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Hsien-Cheng Yu
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Shahidul M Islam
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| | - Laura L Anderson
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor St. MC 111, Chicago, IL, 60607, USA
| |
Collapse
|
7
|
Szabó T, Volk B, Milen M. Recent Advances in the Synthesis of β-Carboline Alkaloids. Molecules 2021; 26:663. [PMID: 33513936 PMCID: PMC7866041 DOI: 10.3390/molecules26030663] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/16/2021] [Accepted: 01/21/2021] [Indexed: 12/31/2022] Open
Abstract
β-Carboline alkaloids are a remarkable family of natural and synthetic indole-containing heterocyclic compounds and they are widely distributed in nature. Recently, these alkaloids have been in the focus of interest, thanks to their diverse biological activities. Their pharmacological activity makes them desirable as sedative, anxiolytic, hypnotic, anticonvulsant, antitumor, antiviral, antiparasitic or antimicrobial drug candidates. The growing potential inherent in them encourages many researchers to address the challenges of the synthesis of natural products containing complex β-carboline frameworks. In this review, we describe the recent developments in the synthesis of β-carboline alkaloids and closely related derivatives through selected examples from the last 5 years. The focus is on the key steps with improved procedures and synthetic approaches. Furthermore the pharmacological potential of the alkaloids is also highlighted.
Collapse
Affiliation(s)
| | | | - Mátyás Milen
- Egis Pharmaceuticals Plc., Directorate of Drug Substance Development, P.O. Box 100, H-1475 Budapest, Hungary; (T.S.); (B.V.)
| |
Collapse
|
8
|
Collins N, Connon R, Sánchez‐Sanz G, Evans P. Isomerisation of Vinyl Sulfones for the Stereoselective Synthesis of Vinyl Azides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Niall Collins
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
| | - Robert Connon
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
| | - Goar Sánchez‐Sanz
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
- Irish Centre of High‐End Computing Grand Canal Quay Dublin 2 Ireland
| | - Paul Evans
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin D04 N2E2 Dublin Ireland
| |
Collapse
|
9
|
Sonnleitner CM, Park S, Eckl R, Ertl T, Reiser O. Stereoselective Synthesis of Tropanes via a 6π-Electrocyclic Ring-Opening/ Huisgen [3+2]-Cycloaddition Cascade of Monocyclopropanated Heterocycles. Angew Chem Int Ed Engl 2020; 59:18110-18115. [PMID: 32627302 PMCID: PMC7589232 DOI: 10.1002/anie.202006030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Indexed: 12/18/2022]
Abstract
The synthesis of tropanes via a microwave-assisted, stereoselective 6π-electrocyclic ring-opening/ Huisgen [3+2]-cycloaddition cascade of cyclopropanated pyrrole and furan derivatives with electron-deficient dipolarophiles is demonstrated. Starting from furans or pyrroles, 8-aza- and 8-oxabicyclo[3.2.1]octanes are accessible in two steps in dia- and enantioselective pure form, being versatile building blocks for the synthesis of pharmaceutically relevant targets, especially for new cocaine analogues bearing various substituents at the C-6/C-7 positions of the tropane ring system. Moreover, the 2-azabicyclo[2.2.2]octane core (isoquinuclidines), being prominently represented in many natural and pharmaceutical products, is accessible via this approach.
Collapse
Affiliation(s)
- Carina M. Sonnleitner
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Saerom Park
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Robert Eckl
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Thomas Ertl
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| | - Oliver Reiser
- Institut für Organische ChemieUniversität RegensburgUniversitätsstrasse 3193053RegensburgGermany
| |
Collapse
|
10
|
Sonnleitner CM, Park S, Eckl R, Ertl T, Reiser O. Stereoselektive Synthese von Tropanen über eine 6π‐elektrocyclische Ringöffnung/ Huisgen‐[3+2]‐Cycloadditionskaskade von monocyclopropanierten Heterocyclen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Carina M. Sonnleitner
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Saerom Park
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Robert Eckl
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Thomas Ertl
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| | - Oliver Reiser
- Institut für Organische Chemie Universität Regensburg Universitätsstr. 31 93053 Regensburg Deutschland
| |
Collapse
|
11
|
Discovery of 2-(1H-imidazo-2-yl)piperazines as a new class of potent and non-cytotoxic inhibitors of Trypanosoma brucei growth in vitro. Bioorg Med Chem Lett 2018; 28:3689-3692. [PMID: 30482621 DOI: 10.1016/j.bmcl.2018.10.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/17/2018] [Accepted: 10/20/2018] [Indexed: 12/12/2022]
Abstract
The identification of a new series of growth inhibitors of Trypanosoma brucei rhodesiense, causative agent of Human African Trypanosomiasis (HAT), is described. A selection of compounds from our in-house compound collection was screened in vitro against the parasite leading to the identification of compounds with nanomolar inhibition of T. brucei growth. Preliminary SAR on the hit compound led to the identification of compound 34 that shows low nanomolar parasite growth inhibition (T. brucei EC50 5 nM), is not cytotoxic (HeLa CC50 > 25,000 nM) and is selective over other parasites, such as Trypanosoma cruzi and Plasmodium falciparum (T. cruzi EC50 8120 nM, P. falciparum EC50 3624 nM).
Collapse
|
12
|
Afewerki S, Wang JX, Liao WW, Córdova A. The Chemical Synthesis and Applications of Tropane Alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2018; 81:151-233. [PMID: 30685050 DOI: 10.1016/bs.alkal.2018.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tropanes are an important class of alkaloid natural products that are found in plants all over the world. These compounds can exhibit significant biological activity and are among the oldest known medicines. In the early 19th century, tropanes were isolated, characterized, and synthesized by notable chemical researchers. Their significant biological activities have inspired tremendous research efforts toward their synthesis and the elucidation of their pharmacological activity both in academia and in industry. In this chapter, which addresses the developments in this field since 1994, the focus is on the synthesis of these compounds, and several examples of sophisticated synthetic protocols involving both asymmetric and catalytic approaches are described. In addition, the structures of more than 100 new alkaloids are included as well as the applications and pharmacological properties of some tropane alkaloids.
Collapse
Affiliation(s)
- Samson Afewerki
- Department of Natural Sciences, Mid Sweden University, Sundsvall, Sweden; Berzelii Center EXSELENT, The Arrhenius Laboratory, Stockholm University, Stockholm, Sweden
| | - Jia-Xin Wang
- Department of Organic Chemistry, College of Chemistry, Jilin University, Changchun, China
| | - Wei-Wei Liao
- Department of Organic Chemistry, College of Chemistry, Jilin University, Changchun, China.
| | - Armando Córdova
- Department of Natural Sciences, Mid Sweden University, Sundsvall, Sweden; Berzelii Center EXSELENT, The Arrhenius Laboratory, Stockholm University, Stockholm, Sweden.
| |
Collapse
|
13
|
Bailey CL, Joh AY, Hurley ZQ, Anderson CL, Singaram B. Controlled Reduction of Tertiary Amides to the Corresponding Alcohols, Aldehydes, or Amines Using Dialkylboranes and Aminoborohydride Reagents. J Org Chem 2016; 81:3619-28. [DOI: 10.1021/acs.joc.6b00276] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christopher L. Bailey
- Department of Chemistry and
Biochemistry, University of California, Santa Cruz, 1156 High
Street, Santa Cruz, California 95064, United States
| | - Alexander Y. Joh
- Department of Chemistry and
Biochemistry, University of California, Santa Cruz, 1156 High
Street, Santa Cruz, California 95064, United States
| | - Zefan Q. Hurley
- Department of Chemistry and
Biochemistry, University of California, Santa Cruz, 1156 High
Street, Santa Cruz, California 95064, United States
| | - Christopher L. Anderson
- Department of Chemistry and
Biochemistry, University of California, Santa Cruz, 1156 High
Street, Santa Cruz, California 95064, United States
| | - Bakthan Singaram
- Department of Chemistry and
Biochemistry, University of California, Santa Cruz, 1156 High
Street, Santa Cruz, California 95064, United States
| |
Collapse
|
14
|
Rowicki T, Malinowski M, Gryszel M, Czerwińska K, Madura I, Mironiuk-Puchalska E, Koszytkowska-Stawińska M, Sas W. Unprotected Xylose-Derived Nitrone in Stereodivergent Synthesis of 4-Hydroxypiperidine Enantiomers: Weak Lewis Acid Induced Alteration of Stereochemistry in 1,3-Dipolar Cycloaddition. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403410] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
Bailey CL, Clary JW, Tansakul C, Klabunde L, Anderson CL, Joh AY, Lill AT, Peer N, Braslau R, Singaram B. Reduction of Weinreb amides to aldehydes under ambient conditions with magnesium borohydride reagents. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
16
|
Das SN, Chowdhury A, Tripathi N, Jana PK, Mandal SB. Exploitation of in Situ Generated Sugar-Based Olefin Keto-Nitrones: Synthesis of Carbocycles, Heterocycles, and Nucleoside Derivatives. J Org Chem 2014; 80:1136-48. [DOI: 10.1021/jo502672x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Soumendra Nath Das
- Chemistry
Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C.
Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Arpan Chowdhury
- National Institute of Pharmaceutical Education and Research, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Neha Tripathi
- National Institute of Pharmaceutical Education and Research, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Prithwish K. Jana
- Chemistry
Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C.
Mullick Road, Jadavpur, Kolkata 700 032, India
| | - Sukhendu B Mandal
- Chemistry
Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C.
Mullick Road, Jadavpur, Kolkata 700 032, India
| |
Collapse
|
17
|
Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
18
|
Tabassum S, Suresha Kumara T, Jasinski JP, Millikan SP, Yathirajan H, Sujan Ganapathy P, Sowmya H, More SS, Nagendrappa G, Kaur M, Jose G. Synthesis, crystal structure, ABTS radical-scavenging activity, antimicrobial and docking studies of some novel quinoline derivatives. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
19
|
Mao Z, Huang S, Gao L, Wang A, Huang P. A novel and versatile method for the enantioselective syntheses of tropane alkaloids. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4998-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
20
|
Kalia D, Merey G, Guo M, Sintim HO. N–O Tethered Carbenoid Cyclopropanation Facilitates the Synthesis of a Functionalized Cyclopropyl-Fused Pyrrolidine. J Org Chem 2013; 78:6131-42. [DOI: 10.1021/jo400788a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Dimpy Kalia
- Department of Chemistry and
Biochemistry, University of Maryland, College
Park, Maryland 20742, United States
| | - Gökce Merey
- Department of Chemistry and
Biochemistry, University of Maryland, College
Park, Maryland 20742, United States
- Chemical Engineering Department, Hitit University, Corum, Turkey
| | - Min Guo
- Department of Chemistry and
Biochemistry, University of Maryland, College
Park, Maryland 20742, United States
| | - Herman O. Sintim
- Department of Chemistry and
Biochemistry, University of Maryland, College
Park, Maryland 20742, United States
| |
Collapse
|
21
|
Huang SY, Chang Z, Tuo SC, Gao LH, Wang AE, Huang PQ. Versatile construction of functionalized tropane ring systems based on lactam activation: enantioselective synthesis of (+)-pervilleine B. Chem Commun (Camb) 2013; 49:7088-90. [DOI: 10.1039/c3cc43665a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Saha N, Chattopadhyay SK. Enantiodivergency and enantioconvergency in the synthesis of the dendrobate alkaloid 241D. J Org Chem 2012. [PMID: 23205643 DOI: 10.1021/jo3019329] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A diastereodivergent preparation of two N-alkenylnitrones (9 and 11) from easily available (R)-2,3-O-cyclohexylideneglyceraldehyde (5) led to an enantiodivergent synthesis of both enantiomers of the dendrobate alkaloid 241D in a sequential two-directional approach involving intramolecular nitrone cycloaddition as the key step. Either of these two nitrones could, in principle, be utilized for the preparation of the title compounds in an enantioconvergent fashion as well. The methodology was extended to prepare an analogue (33) of (-)-241D.
Collapse
Affiliation(s)
- Nemai Saha
- Department of Chemistry, University of Kalyani, Kalyani-741235, West Bengal, India
| | | |
Collapse
|
23
|
Reith MEA, Ali S, Hashim A, Sheikh IS, Theddu N, Gaddiraju NV, Mehrotra S, Schmitt KC, Murray TF, Sershen H, Unterwald EM, Davis FA. Novel C-1 substituted cocaine analogs unlike cocaine or benztropine. J Pharmacol Exp Ther 2012; 343:413-25. [PMID: 22895898 DOI: 10.1124/jpet.112.193771] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Despite a wealth of information on cocaine-like compounds, there is no information on cocaine analogs with substitutions at C-1. Here, we report on (R)-(-)-cocaine analogs with various C-1 substituents: methyl (2), ethyl (3), n-propyl (4), n-pentyl (5), and phenyl (6). Analog 2 was equipotent to cocaine as an inhibitor of the dopamine transporter (DAT), whereas 3 and 6 were 3- and 10-fold more potent, respectively. None of the analogs, however, stimulated mouse locomotor activity, in contrast to cocaine. Pharmacokinetic assays showed compound 2 occupied mouse brain rapidly, as cocaine itself; moreover, 2 and 6 were behaviorally active in mice in the forced-swim test model of depression and the conditioned place preference test. Analog 2 was a weaker inhibitor of voltage-dependent Na+ channels than cocaine, although 6 was more potent than cocaine, highlighting the need to assay future C-1 analogs for this activity. Receptorome screening indicated few significant binding targets other than the monoamine transporters. Benztropine-like "atypical" DAT inhibitors are known to display reduced cocaine-like locomotor stimulation, presumably by their propensity to interact with an inward-facing transporter conformation. However, 2 and 6, like cocaine, but unlike benztropine, exhibited preferential interaction with an outward-facing conformation upon docking in our DAT homology model. In summary, C-1 cocaine analogs are not cocaine-like in that they are not stimulatory in vivo. However, they are not benztropine-like in binding mechanism and seem to interact with the DAT similarly to cocaine. The present data warrant further consideration of these novel cocaine analogs for antidepressant or cocaine substitution potential.
Collapse
Affiliation(s)
- Maarten E A Reith
- Department of Psychiatry, New York University School of Medicine, 450 E 29th Street, Alexandria Building Room 803, New York, NY 10016, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Edupuganti R, Davis FA. Synthesis and applications of masked oxo-sulfinamides in asymmetric synthesis. Org Biomol Chem 2012; 10:5021-31. [PMID: 22576951 DOI: 10.1039/c2ob25345c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This short perspective reports on the synthesis and applications of a class of chiral amino carbonyl compounds, masked oxo-sulfinamides where the amine is protected with an N-sulfinyl moiety and the carbonyl group is protected as the ketal or 1,3-dithiane. These polyfunctionalized chiral building blocks are prepared by addition of organometallic reagents to masked oxo-sulfinimines (N-sulfinyl imines) or the addition of oxo-organometallic reagents and lithio-1,3-dithianes to sulfinimines. Because unmasking of the amino and carbonyl groups results in cyclic imines, these chiral building blocks are particularly useful for the asymmetric synthesis of functionalized nitrogen heterocycles, including prolines, pipecolic acids, pyrrolidines, homotropinones, tropinones, and tropane alkaloids such as cocaine and C-1 cocaine analogues.
Collapse
|