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Loh J, Asad N, Samarakoon TB, Hanson PR. Modular, One-Pot, Sequential Aziridine Ring Opening-S(N)Ar Strategy to 7-, 10-, and 11-Membered Benzo-Fused Sultams. J Org Chem 2015; 80:9926-41. [PMID: 26446396 PMCID: PMC4943336 DOI: 10.1021/acs.joc.5b01429] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Indexed: 12/12/2022]
Abstract
The generation of common and stereochemically rich medium-sized benzo-fused sultams via complementary pairing of heretofore-unknown (o-fluoroaryl)sulfonyl aziridine building blocks with an array of amino alcohols/amines in a modular one-pot, sequential protocol using an aziridine ring opening and intramolecular nucleophilic aromatic substitution is reported. The strategy employs a variety of amino alcohols/amines and proceeds with 6 + 4/6 + 5 and 6 + 1 cycloetherification pathways in a highly chemo- and regioselective fashion to obtain skeletally and structurally diverse, polycyclic, 10- to 11- and 7-membered benzo-fused sultams for broad-scale screening.
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Affiliation(s)
- Joanna
K. Loh
- Department of Chemistry, University
of Kansas, 1251 Wescoe
Hall Drive, Lawrence, Kansas 66045, United
States
- Center
for Chemical Methodologies
and Library Development (KU-CMLD), Delbert M. Shankel Structural Biology
Center, The University of Kansas, 2034 Becker Drive, Lawrence, Kansas 66047, United States
| | - Naeem Asad
- Department of Chemistry, University
of Kansas, 1251 Wescoe
Hall Drive, Lawrence, Kansas 66045, United
States
- Center
for Chemical Methodologies
and Library Development (KU-CMLD), Delbert M. Shankel Structural Biology
Center, The University of Kansas, 2034 Becker Drive, Lawrence, Kansas 66047, United States
| | - Thiwanka B. Samarakoon
- Department of Chemistry, University
of Kansas, 1251 Wescoe
Hall Drive, Lawrence, Kansas 66045, United
States
- Center
for Chemical Methodologies
and Library Development (KU-CMLD), Delbert M. Shankel Structural Biology
Center, The University of Kansas, 2034 Becker Drive, Lawrence, Kansas 66047, United States
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Reuter C, Opitz R, Soicke A, Dohmen S, Barone M, Chiha S, Klein MT, Neudörfl JM, Kühne R, Schmalz HG. Design and Stereoselective Synthesis of ProM-2: A Spirocyclic Diproline Mimetic with Polyproline Type II (PPII) Helix Conformation. Chemistry 2015; 21:8464-70. [DOI: 10.1002/chem.201406493] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/11/2015] [Indexed: 11/08/2022]
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Lesma G, Cecchi R, Cagnotto A, Gobbi M, Meneghetti F, Musolino M, Sacchetti A, Silvani A. Tetrahydro-β-carboline-based spirocyclic lactam as type II' β-turn: application to the synthesis and biological evaluation of somatostatine mimetics. J Org Chem 2013; 78:2600-10. [PMID: 23409740 DOI: 10.1021/jo302737j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The synthesis of novel spirocyclic lactams, embodying D-tryptophan (Trp) amino acid as the central core and acting as peptidomimetics, is presented. It relies on the strategic combination of Seebach's self-reproduction of chirality chemistry and Pictet-Spengler condensation as key steps. Investigation of the conformational behavior by molecular modeling, X-ray crystallography, and NMR and IR spectroscopies suggests very stable and highly predictable type II' β-turn conformations for all compounds. Relying on this feature, we also pursued their application to two potential mimetics of the hormone somatostatin, a pharmaceutically relevant natural peptide, which contains a Trp-based type II' β-turn pharmacophore.
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Affiliation(s)
- Giordano Lesma
- Dipartimento di Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milano, Italy
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Reuter C, Huy P, Neudörfl JM, Kühne R, Schmalz HG. Exercises in Pyrrolidine Chemistry: Gram Scale Synthesis of a Pro-Pro Dipeptide Mimetic with a Polyproline Type II Helix Conformation. Chemistry 2011; 17:12037-44. [DOI: 10.1002/chem.201101704] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Indexed: 01/29/2023]
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Carreras J, Avenoza A, Busto JH, Peregrina JM. Ring-Rearrangement Metathesis of 1-Substituted 7-Azanorbornenes as an Entry to 1-Azaspiro[4.5]decane systems. J Org Chem 2011; 76:3381-91. [PMID: 21463002 DOI: 10.1021/jo200321t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Javier Carreras
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, U.A.-C.S.I.C., E-26006 Logroño, Spain
| | - Alberto Avenoza
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, U.A.-C.S.I.C., E-26006 Logroño, Spain
| | - Jesús H. Busto
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, U.A.-C.S.I.C., E-26006 Logroño, Spain
| | - Jesús M. Peregrina
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, U.A.-C.S.I.C., E-26006 Logroño, Spain
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Sacchetti A, Silvani A, Lesma G, Pilati T. Phe-Ala-Based Diazaspirocyclic Lactam as Nucleator of Type II′ β-Turn. J Org Chem 2011; 76:833-9. [DOI: 10.1021/jo1019927] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Alessandro Sacchetti
- Politecnico di Milano, Dipartimento di Chimica, Materiali ed Ingegneria Chimica ‘Giulio Natta’, via Mancinelli 7, 20131 Milano, Italy
| | - Alessandra Silvani
- Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, via G. Venezian 21, 20133 Milano, Italy
| | - Giordano Lesma
- Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, via G. Venezian 21, 20133 Milano, Italy
| | - Tullio Pilati
- Istituto di Scienze e Tecnologie Molecolari − CNR, Via Golgi 19, 20133 Milano, Italy
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Cristina Bellucci M, Marcelli T, Scaglioni L, Volonterio A. Synthesis of diverse spiroisoxazolidinohydantoins by totally regio- and diasteroselective 1,3-dipolar cycloadditions. RSC Adv 2011. [DOI: 10.1039/c1ra00573a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Hassan HMA. Recent applications of ring-closing metathesis in the synthesis of lactams and macrolactams. Chem Commun (Camb) 2010; 46:9100-6. [DOI: 10.1039/c0cc03122d] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2008. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.07.018] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Tetrahydroisoquinoline-Based Spirocyclic Lactam as a Type II′ β-Turn Inducing Peptide Mimetic. J Org Chem 2009; 74:8098-105. [DOI: 10.1021/jo901480d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Fustero S, Mateu N, Albert L, Aceña JL. Straightforward Stereoselective Access to Cyclic Peptidomimetics. J Org Chem 2009; 74:4429-32. [DOI: 10.1021/jo900679c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - Natalia Mateu
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - Laia Albert
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
| | - José Luis Aceña
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Spain, and Laboratorio de Moléculas Orgánicas, Centro de Investigación Príncipe Felipe, E-46012 Valencia, Spain
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