1
|
Formal syntheses of (-)-isoretronecanol, (+)-laburnine, and a concise enantioselective synthesis of (+)-turneforcidine. J Antibiot (Tokyo) 2019; 72:397-406. [PMID: 30894676 DOI: 10.1038/s41429-019-0169-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 01/23/2019] [Accepted: 01/31/2019] [Indexed: 11/08/2022]
Abstract
The synthesis of functionalized pyroglutamates 15 and 16 could be achieved by the application of recently developed diastereodivergent asymmetric Michael addition reaction of iminoglycinate 7 to ethyl γ-silyloxycrotonate with >98:<2 diastereoselectivity followed by hydrolysis and lactamization. Formal syntheses of (-)-isoretronecanol and (+)-laburnine as well as a concise enantioselective synthesis of (+)-turneforcidine could be achieved from functionalized pyroglutamates 15 or 16.
Collapse
|
2
|
|
3
|
Brambilla M, Davies SG, Fletcher AM, Roberts PM, Thomson JE. Asymmetric syntheses of the 1-hydroxymethyl-2-hydroxy substituted pyrrolizidines (−)-macronecine, (−)-petasinecine, (−)-1- epi -macronecine, (+)-1- epi -petasinecine and (+)-2- epi -rosmarinecine. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
Martinez ST, Belouezzane C, Pinto AC, Glasnov T. Synthetic Strategies towards the Azabicyclo[3.3.0]-Octane Core of Natural Pyrrolizidine Alkaloids. An Overview. ORG PREP PROCED INT 2016. [DOI: 10.1080/00304948.2016.1165058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
5
|
Brambilla M, Davies SG, Fletcher AM, Thomson JE. Asymmetric and enantiospecific syntheses of 1-hydroxymethyl pyrrolizidine alkaloids. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.02.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
6
|
Miller B, Mao S, Rosenker KMG, Pierce JG, Wipf P. Synthesis of a library of tricyclic azepinoisoindolinones. Beilstein J Org Chem 2012; 8:1091-7. [PMID: 23019435 PMCID: PMC3458725 DOI: 10.3762/bjoc.8.120] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 06/26/2012] [Indexed: 11/23/2022] Open
Abstract
Hydrozirconation of 1-hexyne, the addition to in situ prepared N-acyliminium species, and ring-closing metathesis (RCM) were key steps in the preparation of a tricyclic isoindolinone scaffold. An unusual alkene isomerization process during the RCM was identified and studied in some detail. Chemical diversification for library synthesis was achieved by a subsequent alkene epoxidation and zinc-mediated aminolysis reaction. The resulting library products provided selective hits among a large number of high-throughput screens reported in PubChem, thus illustrating the utility of the novel scaffold.
Collapse
Affiliation(s)
- Bettina Miller
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Shuli Mao
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Kara M George Rosenker
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Joshua G Pierce
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| | - Peter Wipf
- Center for Chemical Methodologies & Library Development (CMLD), Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA 15260, USA
| |
Collapse
|
7
|
Sun MR, Lu HT, Wang YZ, Yang H, Liu HM. Highly efficient formal synthesis of cephalotaxine, using the Stevens rearrangement--acid lactonization sequence as a key transformation. J Org Chem 2010; 74:2213-6. [PMID: 19170601 DOI: 10.1021/jo8025252] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cephalotaxine (1), the major alkaloid isolated from Cephalotaxus species, has attracted considerable attention due to the promising antitumor activity of several of its derivatives and its unique structural features. Herein we describe a highly efficient formal synthesis of 1 employing the [2,3]-Stevens rearrangement-acid lactonization sequence as a key transformation from readily available (3,4-dimethoxyphenyl)acetic acid, methyl prolinate, and allyl bromide.
Collapse
Affiliation(s)
- Mo-ran Sun
- New Drug Research & Development Center, School of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450001, China
| | | | | | | | | |
Collapse
|
8
|
Mo F, Li F, Qiu D, Wang J. Enantioselective synthesis of condensed and transannular ring skeletons containing pyrrolidine moiety. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.12.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Ritthiwigrom T, Willis AC, Pyne SG. Total Synthesis of Uniflorine A, Casuarine, Australine, 3-epi-Australine, and 3,7-Di-epi-australine from a Common Precursor. J Org Chem 2009; 75:815-24. [DOI: 10.1021/jo902355p] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Thunwadee Ritthiwigrom
- School of Chemistry, University of Wollongong, Wollongong, New South Wales, 2522, Australia
| | - Anthony C. Willis
- Research School of Chemistry, Australian National University, Canberra, ACT, 0200, Australia
| | - Stephen G. Pyne
- School of Chemistry, University of Wollongong, Wollongong, New South Wales, 2522, Australia
| |
Collapse
|
10
|
Synthesis of pyrrolizidine alkaloids via 1,3-dipolar cycloaddition involving cyclic nitrones and unsaturated lactones. Carbohydr Res 2008; 343:2215-20. [DOI: 10.1016/j.carres.2008.04.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Accepted: 04/21/2008] [Indexed: 11/17/2022]
|
11
|
Cyclization of N-Allyl-5-allyl-5-hydroxylactams to 8a-Hydroxy-1,5,8,8a-tetrahydro-2H-indolizin-3-ones Using Grubbs' Catalyst. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.4.755] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
12
|
Pierce JG, Waller DL, Wipf P. Synthesis of Functionalized Isoindolinones: Addition of In Situ Generated Organoalanes to Acyliminium Ions. J Organomet Chem 2007; 692:4618-4629. [PMID: 19684878 DOI: 10.1016/j.jorganchem.2007.05.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Addition of in situ generated di- or trisubstituted alkenylalanes to N-acyliminium ions provides rapid access to functionalized isoindolinones. Subsequent ring closing metathesis leads to tricyclic products. These transformations proceed under mild conditions and allow for the convergent synthesis of biologically significant scaffolds from readily available starting materials.
Collapse
Affiliation(s)
- Joshua G Pierce
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, U.S.A
| | | | | |
Collapse
|
13
|
Mori M, Wakamatsu H, Sato Y, Fujita R. Ruthenium-catalyzed ROM-RCM of Cyclopentene-yne. Concise Synthesis of a Pyrrolizidine Derivative. HETEROCYCLES 2006. [DOI: 10.3987/com-05-s(t)21] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
14
|
Δ3-Aryl/heteroaryl substituted heterocycles via sequential Pd-catalysed termolecular cascade/ring closing metathesis (RCM). Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.08.078] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
|
16
|
Chippindale AM, Davies SG, Iwamoto K, Parkin RM, Smethurst CA, Smith AD, Rodriguez-Solla H. Asymmetric synthesis of cyclic β-amino acids and cyclic amines via sequential diastereoselective conjugate addition and ring closing metathesis. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00411-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
17
|
Chapter 1 Recent advances in the synthesis of heterocycles via ring-closing metathesis. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0959-6380(03)80003-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
18
|
Herndon JW. The chemistry of the carbontransition metal double and triple bond: annual survey covering the year 2000. Coord Chem Rev 2002. [DOI: 10.1016/s0010-8545(01)00445-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
19
|
Behr JB, Erard A, Guillerm G. A Facile and Rapid Route to a New Series of Pyrrolizidines Structurally Related to (+)-Alexine and (+)-Australine. European J Org Chem 2002. [DOI: 10.1002/1099-0690(200204)2002:7<1256::aid-ejoc1256>3.0.co;2-r] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
20
|
Vicario JL, Badía D, Carrillo L. Stereocontrolled Mannich reaction with enolizable imines using (S,S)-(+)-pseudoephedrine as chiral auxiliary. Asymmetric synthesis of alpha,beta-disubstituted beta-aminoesters and beta-lactams. J Org Chem 2001; 66:9030-2. [PMID: 11749640 DOI: 10.1021/jo010697m] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J L Vicario
- Departamento de Química Orgánica II, Facultad de Ciencias, Universidad del País Vasco/Euskal Herriko Unibertsitatea, P.O. Box 644, E-48080 Bilbao, Spain.
| | | | | |
Collapse
|