1
|
Zhang XQ, Ma YR, Liu YK. Organocatalytic Enantioselective Functionalization of Cyclic α-Hydroxyamides: Access to Chiral Cyclic Imides and Azapolycyclic Compounds. Org Lett 2023; 25:8220-8224. [PMID: 37955418 DOI: 10.1021/acs.orglett.3c03182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
A highly efficient enantioselective enamine-catalyzed asymmetric conjugate addition has been developed to directly convert unfunctionalized cyclic α-hydroxyamides into chiral cyclic α-hydroxyamides by reacting with vinyl sulfones, which could be used as versatile azacyclic synthons in the following sequences: (1) as the precursors of cyclic N-acyliminium ions to prepare natural productlike chiral azapolycyclic compounds under acidic conditions and (2) to construct chiral cyclic imides bearing unilateral substituents via oxidation reaction-induced formal desymmetrization.
Collapse
Affiliation(s)
- Xiao-Qian Zhang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yuan-Ren Ma
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yan-Kai Liu
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
| |
Collapse
|
2
|
Yoshiwara Y, Kotani S, Nakajima M. Enantioselective and Chemoselective Phosphine Oxide-catalyzed Aldol Reactions of N-Unprotected Cyclic Carboxyimides. Chemistry 2023; 29:e202203506. [PMID: 36526949 DOI: 10.1002/chem.202203506] [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: 11/11/2022] [Revised: 12/05/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Asymmetric catalytic transformations of N-unprotected cyclic carboxyimides such as succinimides, hydantoins, oxazolidinediones, and glitazones, is a powerful way of directly accessing variety of biologically valuable chiral compounds. Herein, a bis(trichlorosilyl) nucleophilic intermediate formed from cyclic carboxyimides was reacted with aldehydes via (S)-SEGPHOS dioxide (SEGPHOSO), proceeding the aldol reaction in highly enantioselective fashion through a cyclic transition state. Furthermore, N-unprotected carboxyimides were chemoselectively activated, even in the presence of N-alkylated carboxyimides, to undergo stereoselective and chemoselective aldol reactions via in situ silicon tetrachloride activation. The functionalized cyclic carboxyimides is readily derived to the several synthetic units derivatization to various chiral building blocks without unnecessary protection/deprotection steps.
Collapse
Affiliation(s)
- Yusaku Yoshiwara
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Shunsuke Kotani
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Makoto Nakajima
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| |
Collapse
|
3
|
Yin C, Pan Y, Zhang X, Yin Q. Catalytic Asymmetric Hydrogenation of Tetrasubstituted Unsaturated Lactams: An Efficient Approach to Enantioenriched 3,4-Disubstituted Piperidines. Org Lett 2022; 24:675-680. [PMID: 35005963 DOI: 10.1021/acs.orglett.1c04132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Asymmetric hydrogenation of tetrasubstituted alkenes remains a formidable challenge in asymmetric catalysis. We report herein an unprecedented Rh-catalyzed enantioselective and diastereoselective hydrogenation of easily accessed α,β-disubstituted unsaturated lactams to afford synthetically valuable chiral lactams with 1,2-consecutive stereocenters. The reaction could be performed on the gram scale, and the products could be concisely transformed to enantiomerically pure trans-3,4-disubstituted piperidines, which are prevalent structural units in medicinal agents.
Collapse
Affiliation(s)
- Congcong Yin
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yingmin Pan
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Xumu Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Qin Yin
- Shenzhen Institute of Advanced Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China
| |
Collapse
|
4
|
Raison B, Dussart N, Levy L, Goekjian PG, Gueyrard D. Synthesis of Substituted Indolizidines and Quinolizidines by Regioselective Intramolecular Modified Julia Olefination of Imides. J Org Chem 2020; 85:864-875. [PMID: 31823617 DOI: 10.1021/acs.joc.9b02834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report the synthesis of substituted indolizidines and quinolizidines using the modified Julia olefination previously developed on imides. The study focuses on the regioselectivity of this reaction on unsymmetrically substituted imides. The scope and regioselectivity of the reaction are presented here, and its utility as a tool for synthesizing natural products is demonstrated through the total synthesis of Pandalizine A.
Collapse
Affiliation(s)
- Bastien Raison
- Laboratoire Chimie Organique 2 Glycochimie, Université de Lyon, ICBMS , UMR 5246, CNRS, Université Claude Bernard Lyon 1 , Bat. Lederer, 1 rue Victor Grignard , 69622 Villeurbanne , France
| | - Nicolas Dussart
- Laboratoire Chimie Organique 2 Glycochimie, Université de Lyon, ICBMS , UMR 5246, CNRS, Université Claude Bernard Lyon 1 , Bat. Lederer, 1 rue Victor Grignard , 69622 Villeurbanne , France
| | - Laura Levy
- Laboratoire Chimie Organique 2 Glycochimie, Université de Lyon, ICBMS , UMR 5246, CNRS, Université Claude Bernard Lyon 1 , Bat. Lederer, 1 rue Victor Grignard , 69622 Villeurbanne , France
| | - Peter G Goekjian
- Laboratoire Chimie Organique 2 Glycochimie, Université de Lyon, ICBMS , UMR 5246, CNRS, Université Claude Bernard Lyon 1 , Bat. Lederer, 1 rue Victor Grignard , 69622 Villeurbanne , France
| | - David Gueyrard
- Laboratoire Chimie Organique 2 Glycochimie, Université de Lyon, ICBMS , UMR 5246, CNRS, Université Claude Bernard Lyon 1 , Bat. Lederer, 1 rue Victor Grignard , 69622 Villeurbanne , France
| |
Collapse
|
5
|
Szcześniak P, Buda S, Lefevre L, Staszewska-Krajewska O, Mlynarski J. Total Asymmetric Synthesis of (+)-Paroxetine and (+)-Femoxetine. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901389] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Piotr Szcześniak
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Szymon Buda
- Faculty of Chemistry; Jagiellonian University; Gronostajowa 2 30-387 Krakow Poland
| | - Laura Lefevre
- Faculty of Chemistry; Jagiellonian University; Gronostajowa 2 30-387 Krakow Poland
| | | | - Jacek Mlynarski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| |
Collapse
|
6
|
Redina EA, Vikanova KV, Kapustin GI, Mishin IV, Tkachenko OP, Kustov LM. Selective Room-Temperature Hydrogenation of Carbonyl Compounds under Atmospheric Pressure over Platinum Nanoparticles Supported on Ceria-Zirconia Mixed Oxide. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900215] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Elena A. Redina
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Kseniia V. Vikanova
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Gennady I. Kapustin
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Igor V. Mishin
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Olga P. Tkachenko
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
| | - Leonid M. Kustov
- Laboratory of Development and Study of Polyfunctional Catalysts; Zelinsky Institute of Organic Chemistry RAS; 119991, Leninsky pr. 47 Moscow Russian Federation
- Chemistry Department; Lomonosov Moscow State University; 119991, Leninskie gory 1 Moscow Russian Federation
| |
Collapse
|
7
|
Lv L, Lv H, Qiu X, Yan J, Tong S. Stereoselectiveseparation of racemic trans-paroxol, N-methylparoxetine and paroxetine containing two chiral carbon centres by countercurrent chromatography. J Chromatogr A 2018; 1570:99-108. [DOI: 10.1016/j.chroma.2018.07.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/25/2018] [Accepted: 07/26/2018] [Indexed: 11/16/2022]
|
8
|
Chamorro-Arenas D, Fuentes L, Quintero L, Cruz-Gregorio S, Höpfl H, Sartillo-Piscil F. Diastereoconvergent Synthesis of (-)-Paroxetine. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700658] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Delfino Chamorro-Arenas
- Centro de Investigación de la Facultad de Ciencias Químicas; Benemérita Universidad Autónoma de Puebla; 14 Sur Esq. San Claudio, San Manuel 72570 Puebla México
| | - Lilia Fuentes
- Centro de Investigación de la Facultad de Ciencias Químicas; Benemérita Universidad Autónoma de Puebla; 14 Sur Esq. San Claudio, San Manuel 72570 Puebla México
| | - Leticia Quintero
- Centro de Investigación de la Facultad de Ciencias Químicas; Benemérita Universidad Autónoma de Puebla; 14 Sur Esq. San Claudio, San Manuel 72570 Puebla México
| | - Silvano Cruz-Gregorio
- Centro de Investigación de la Facultad de Ciencias Químicas; Benemérita Universidad Autónoma de Puebla; 14 Sur Esq. San Claudio, San Manuel 72570 Puebla México
| | - Herbert Höpfl
- Centro de Investigaciones Químicas; Instituto de Ciencias Básicas y Aplicadas; Universidad Autónoma del Estado de Morelos; Av. Universidad 1001 62209 Cuernavaca México
| | - Fernando Sartillo-Piscil
- Centro de Investigación de la Facultad de Ciencias Químicas; Benemérita Universidad Autónoma de Puebla; 14 Sur Esq. San Claudio, San Manuel 72570 Puebla México
| |
Collapse
|
9
|
Schwarzwalder GM, Scott DR, Vanderwal CD. A Synthesis of Exiguaquinol Dessulfate. Chemistry 2016; 22:17953-17957. [PMID: 27673578 PMCID: PMC6028001 DOI: 10.1002/chem.201604506] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 12/24/2022]
Abstract
A concise and stereoselective synthesis of exiguaquinol dessulfate is described. Sequential application of a Diels-Alder cycloaddition, a desymmetrizing aldol addition, and a reductive Heck cyclization established most of the architecture of exiguaquinol, and a carefully choreographed introduction of the polar substituents afforded the title compound; unfortunately, naphthoquinol sulfation could not be achieved to deliver exiguaquinol. Our hypothesis regarding the configurational preference of the N-acyl hemiaminal, which was based upon an analysis of internal hydrogen-bonding interactions with polar functional groups, was proven correct. A late-stage intermediate did not demonstrate bactericidal activity against H. pylori cultures.
Collapse
Affiliation(s)
- Gregg M Schwarzwalder
- Department of Chemistry, University of California, 1102 Natural Sciences II, Irvine, CA, 92697-2025, USA
| | - David R Scott
- Department of Physiology, UC Los Angeles/VA Greater Los Angeles Healthcare System, 11310 Wilshire Blvd, Bldg. 113, Rm. 324, Los Angeles, CA, 90073, USA
| | - Christopher D Vanderwal
- Department of Chemistry, University of California, 1102 Natural Sciences II, Irvine, CA, 92697-2025, USA
| |
Collapse
|
10
|
Kim YR, Hall DG. Optimization and multigram scalability of a catalytic enantioselective borylative migration for the synthesis of functionalized chiral piperidines. Org Biomol Chem 2016; 14:4739-48. [DOI: 10.1039/c6ob00685j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A systematic optimization of a Pd-catalyzed enantioselective borylative migration of an alkenyl nonaflate derivative of the simple precursor, N-Boc-4-piperidone, was achieved.
Collapse
Affiliation(s)
- You-Ri Kim
- Department of Chemistry
- 4-010 Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
| | - Dennis G. Hall
- Department of Chemistry
- 4-010 Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
| |
Collapse
|
11
|
Kutama IU, Jones S. Enantioselective Desymmetrization of Glutarimides Catalyzed by Oxazaborolidines Derived from cis-1-Amino-indan-2-ol. J Org Chem 2015; 80:11468-79. [DOI: 10.1021/acs.joc.5b02177] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ibrahim U. Kutama
- Department
of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, U.K
| | - Simon Jones
- Department
of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, S3 7HF, U.K
| |
Collapse
|
12
|
de Carné-Carnavalet B, Krieger JP, Folléas B, Brayer JL, Demoute JP, Meyer C, Cossy J. Diastereodivergent Pictet-Spengler Cyclization of BicyclicN-Acyliminium Ions: Controlling a Quaternary Stereocenter. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403469] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
13
|
White NA, Ozboya KE, Flanigan DM, Rovis T. Rapid Construction of (-)-Paroxetine and (-)-Femoxetine via N-Heterocyclic Carbene Catalyzed Homoenolate Addition to Nitroalkenes. ASIAN J ORG CHEM 2014; 3:442-444. [PMID: 25485210 PMCID: PMC4251551 DOI: 10.1002/ajoc.201402031] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Indexed: 01/17/2023]
Abstract
A concise enantioselective synthesis of (-)-paroxetine (Paxil) and (-)-femoxetine has been achieved. Key to these syntheses is a N-heterocyclic carbene catalyzed homoenolate addition to a nitroalkene followed by in situ reduction of the nitro-group to rapidly access δ-lactams.
Collapse
Affiliation(s)
- Nicholas A. White
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (USA), Fax: (+)
| | - Kerem E. Ozboya
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (USA), Fax: (+)
| | - Darrin M. Flanigan
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (USA), Fax: (+)
| | - Tomislav Rovis
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523 (USA), Fax: (+)
| |
Collapse
|
14
|
de Carné-Carnavalet B, Meyer C, Cossy J, Folléas B, Brayer JL, Demoute JP. A Sonogashira Cross-Coupling/5-exo-dig Cyclization/Ionic Hydrogenation Sequence: Synthesis of 4-Substituted 3-Azabicyclo[3.1.0]hexan-2-ones from 2-Iodocyclopropanecarboxamides. J Org Chem 2013; 78:5794-9. [DOI: 10.1021/jo400713u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benoît de Carné-Carnavalet
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS (UMR7084), 10 rue Vauquelin 75231
Paris Cedex 05, France
| | - Christophe Meyer
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS (UMR7084), 10 rue Vauquelin 75231
Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire de Chimie Organique, ESPCI ParisTech, CNRS (UMR7084), 10 rue Vauquelin 75231
Paris Cedex 05, France
| | - Benoît Folléas
- DiverChim, 6 rue du Noyer, ZAC du Moulin,
95700 Roissy-en-France, France
| | - Jean-Louis Brayer
- DiverChim, 6 rue du Noyer, ZAC du Moulin,
95700 Roissy-en-France, France
| | | |
Collapse
|
15
|
de Carné-Carnavalet B, Archambeau A, Meyer C, Cossy J, Folléas B, Brayer JL, Demoute JP. Efficient Synthesis of Substituted 3-Azabicyclo[3.1.0]hexan-2-ones from 2-Iodocyclopropanecarboxamides Using a Copper-Free Sonogashira Coupling. Chemistry 2012. [DOI: 10.1002/chem.201203153] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
16
|
Prestly MR, Simpkins NS. Chiral Bases as Useful Probes of Lithium Amide Reactivity. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206558] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
17
|
Prestly MR, Simpkins NS. Chiral Bases as Useful Probes of Lithium Amide Reactivity. Angew Chem Int Ed Engl 2012; 51:12068-71. [DOI: 10.1002/anie.201206558] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Indexed: 11/07/2022]
|
18
|
Chou SSP, Wu CJJ. Ring opening of dihydro-2-pyridones and intramolecular Diels–Alder reactions. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
19
|
Kim MH, Park Y, Jeong BS, Park HG, Jew SS. Synthesis of (−)-Paroxetine via Enantioselective Phase-Transfer Catalytic Monoalkylation of Malonamide Ester. Org Lett 2010; 12:2826-9. [DOI: 10.1021/ol100928v] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mi-hyun Kim
- Research Institute of Pharmaceutical Science and College of Pharmacy, Seoul National University, Seoul 151-742, Korea, and College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Korea
| | - Yohan Park
- Research Institute of Pharmaceutical Science and College of Pharmacy, Seoul National University, Seoul 151-742, Korea, and College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Korea
| | - Byeong-Seon Jeong
- Research Institute of Pharmaceutical Science and College of Pharmacy, Seoul National University, Seoul 151-742, Korea, and College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Korea
| | - Hyeung-geun Park
- Research Institute of Pharmaceutical Science and College of Pharmacy, Seoul National University, Seoul 151-742, Korea, and College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Korea
| | - Sang-sup Jew
- Research Institute of Pharmaceutical Science and College of Pharmacy, Seoul National University, Seoul 151-742, Korea, and College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Korea
| |
Collapse
|
20
|
|
21
|
An expeditious total synthesis of (±)-jamtine using condensation between imine and acid anhydride. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.10.091] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Tang Y, Fettinger JC, Shaw JT. One-Step Synthesis of Complex Nitrogen Heterocycles from Imines and Alkyl-Substituted Maleic Anhydrides. Org Lett 2009; 11:3802-5. [DOI: 10.1021/ol901018k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuchen Tang
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616
| | - James C. Fettinger
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616
| | - Jared T. Shaw
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616
| |
Collapse
|
23
|
Hayes CJ, Simpkins NS, Kirk DT, Mitchell L, Baudoux J, Blake AJ, Wilson C. Bridgehead Lithiation-Substitution of Bridged Ketones, Lactones, Lactams, and Imides: Experimental Observations and Computational Insights. J Am Chem Soc 2009; 131:8196-210. [DOI: 10.1021/ja9009875] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christopher J. Hayes
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD United Kingdom
| | - Nigel S. Simpkins
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD United Kingdom
| | - Douglas T. Kirk
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD United Kingdom
| | - Lee Mitchell
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD United Kingdom
| | - Jerome Baudoux
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD United Kingdom
| | - Alexander J. Blake
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD United Kingdom
| | - Claire Wilson
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD United Kingdom
| |
Collapse
|
24
|
Zhang F, Simpkins NS, Blake AJ. New approaches for the synthesis of erythrinan alkaloids. Org Biomol Chem 2009; 7:1963-79. [DOI: 10.1039/b900189a] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Recent advances in the stereoselective synthesis of trans-3,4-disubstituted-piperidines: applications to (−)-paroxetine. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.01.004] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
26
|
Chavan SP, Khobragade DA, Pathak AB, Kalkote UR. Convenient Formal Synthesis of (±)‐Paroxetine. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910701545130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Subhash P. Chavan
- a Division of Organic Chemistry: Technology, National Chemical Laboratory , Pune, India
| | - Dushant A. Khobragade
- a Division of Organic Chemistry: Technology, National Chemical Laboratory , Pune, India
| | - Ashok B. Pathak
- a Division of Organic Chemistry: Technology, National Chemical Laboratory , Pune, India
| | - Uttam R. Kalkote
- a Division of Organic Chemistry: Technology, National Chemical Laboratory , Pune, India
| |
Collapse
|
27
|
Studies on the reduction and reductive alkylation of amino acid-derived spirocyclic 2,6-dioxopiperazines. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
28
|
|
29
|
Abstract
The design and implementation of cascade reactions is a challenging facet of organic chemistry, yet one that can impart striking novelty, elegance, and efficiency to synthetic strategies. The application of cascade reactions to natural products synthesis represents a particularly demanding task, but the results can be both stunning and instructive. This Review highlights selected examples of cascade reactions in total synthesis, with particular emphasis on recent applications therein. The examples discussed herein illustrate the power of these processes in the construction of complex molecules and underscore their future potential in chemical synthesis.
Collapse
Affiliation(s)
- K C Nicolaou
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
| | | | | |
Collapse
|
30
|
Koech PK, Krische MJ. Enantioselective total and formal syntheses of paroxetine (PAXIL) via phosphine-catalyzed enone α-arylation using arylbismuth(V) reagents: a regiochemical complement to Heck arylation. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.05.092] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
31
|
Minato D, Imai M, Kanda Y, Onomura O, Matsumura Y. Copper ion-catalyzed regioselective introduction of active methylene groups into the γ-position of piperidine skeleton and its application to the synthesis of (−)-cincholoiponic acid. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.05.158] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
32
|
Carey JS, Laffan D, Thomson C, Williams MT. Analysis of the reactions used for the preparation of drug candidate molecules. Org Biomol Chem 2006; 4:2337-47. [PMID: 16763676 DOI: 10.1039/b602413k] [Citation(s) in RCA: 1379] [Impact Index Per Article: 76.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The purpose of this perspective is to indicate the range of chemistries used in the manufacture of drug candidate molecules and to highlight certain gaps in current technologies. To do this a survey was carried out of chemical syntheses within the Process Chemistry R&D departments of GlaxoSmithKline, AstraZeneca and Pfizer.
Collapse
Affiliation(s)
- John S Carey
- GlaxoSmithKline Pharmaceuticals, Old Powder Mills, Tonbridge, UK.
| | | | | | | |
Collapse
|
33
|
A new route to 3,4-disubstituted piperidines: formal synthesis of (−)-paroxetine and (+)-femoxetine. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.10.049] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
34
|
Affiliation(s)
- Maria Chrzanowska
- Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
| | | |
Collapse
|