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Synthesis of Deuterium-Labeled Vitamin D Metabolites as Internal Standards for LC-MS Analysis. Molecules 2022; 27:molecules27082427. [PMID: 35458625 PMCID: PMC9025501 DOI: 10.3390/molecules27082427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 01/27/2023] Open
Abstract
Blood levels of the vitamin D3 (D3) metabolites 25-hydroxyvitamin D3 (25(OH)D3), 24R,25-dihydroxyvitamin D3, and 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) are recognized indicators for the diagnosis of bone metabolism-related diseases, D3 deficiency-related diseases, and hypercalcemia, and are generally measured by liquid-chromatography tandem mass spectrometry (LC-MS/MS) using an isotope dilution method. However, other D3 metabolites, such as 20-hydroxyvitamin D3 and lactone D3, also show interesting biological activities and stable isotope-labeled derivatives are required for LC-MS/MS analysis of their concentrations in serum. Here, we describe a versatile synthesis of deuterium-labeled D3 metabolites using A-ring synthons containing three deuterium atoms. Deuterium-labeled 25(OH)D3 (2), 25(OH)D3-23,26-lactone (6), and 1,25(OH)2D3-23,26-lactone (7) were synthesized, and successfully applied as internal standards for the measurement of these compounds in pooled human serum. This is the first quantification of 1,25(OH)2D3-23,26-lactone (7) in human serum.
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2
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Yan S, Wu L, Li S, Guo W. Triflic Acid Adsorbed on Silica Gel as an Efficient Catalyst for O-Isopropylidenation of Sugar Derivatives. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Tracy JS, Kalnmals CA, Toste FD. Beyond Allylic Alkylation: Applications of Trost Chemistry in Complex Molecule Synthesis. Isr J Chem 2021. [DOI: 10.1002/ijch.202000103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jacob S. Tracy
- Dept. of Chemistry University of California, Berkeley MC 1460 Berkeley CA 94720 USA
| | | | - F. Dean Toste
- Dept. of Chemistry University of California, Berkeley MC 1460 Berkeley CA 94720 USA
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4
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Kumar Manda SL, Tripathi S, Ghoshal A, Ambule MD, Srivastava AK, Panda G. A Comparative Synthetic Strategy Perspective on α-Amino Acid- and Non-Amino Acid-Derived Synthons towards Total Syntheses of Selected Natural Macrolides. Chemistry 2020; 26:5131-5156. [PMID: 31846112 DOI: 10.1002/chem.201904564] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/19/2019] [Indexed: 12/29/2022]
Abstract
Macrocyclic alkaloids (macrolides) and cyclopeptides have an immense range of applications in drug discovery research because of their natural abundance and potential biological and physicochemical properties. Presently, more than 100 approved drugs or clinical drug candidates contain macrocyclic scaffolds as the biologically active component. This review provides an interesting perspective about the use of amino acid-derived chiral pools versus other methods derived from miscellaneous synthons towards the total synthesis of non-peptidic macrolides. The synthetic routes and the key strategies involved in the total syntheses of ten natural macrolides have been discussed. Both the amino acid-derived and non-amino acid-derived synthetic routes have been illustrated to present a comparative study between the two approaches.
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Affiliation(s)
- Srinivas Lavanya Kumar Manda
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow, 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110025, India
| | - Shashank Tripathi
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow, 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110025, India
| | - Anirban Ghoshal
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow, 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110025, India
| | - Mayur D Ambule
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow, 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110025, India
| | - Ajay Kumar Srivastava
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow, 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110025, India
| | - Gautam Panda
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow, 226031, India.,Chemical Sciences Division, Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110025, India
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5
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Oishi T, Koge T, Ebine M. Synthesis of an Analog of Amphidinol 3 Corresponding to the C31–C67 Section. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Synthesis of the phorboxazoles—potent, architecturally novel marine natural products. J Antibiot (Tokyo) 2016; 69:220-52. [DOI: 10.1038/ja.2016.8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/14/2016] [Accepted: 01/19/2016] [Indexed: 11/08/2022]
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7
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Natori Y, Imahori T, Yoshimura Y. Development of Stereoselective Synthesis of Biologically Active Nitrogen-heterocyclic Compounds: Applications for Syntheses of Natural Product and Organocatalyst. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.335] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yoshihiro Natori
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University
| | | | - Yuichi Yoshimura
- Faculty of Pharmaceutical Sciences, Tohoku Pharmaceutical University
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8
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Gattu R, Basha RS, Bagdi PR, Khan AT. One-pot three-component regioselective synthesis of C1-functionalised 3-arylbenzo[f]quinoline. RSC Adv 2016. [DOI: 10.1039/c5ra23413a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient method for regioselective synthesis of C1-functionalised 3-arylbenzo[f]quinoline has been demonstrated using β-ketoester, 2-naphthylamine and aromatic aldehyde by employing camphorsulfonic acid as the catalyst in acetonitrile at 70 °C.
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Affiliation(s)
- Radhakrishna Gattu
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781 039
- India
| | - R. Sidick Basha
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781 039
- India
| | - Prasanta Ray Bagdi
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781 039
- India
| | - Abu T. Khan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781 039
- India
- Vice-Chancellor
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9
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Bagi N, Stefanovszky R, Kaizer J, Speier G. The preparation of annulated 1,3-oxazoles from 1,3,2-oxazaphospholes and aldehydes. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1607-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Raju KB, Kumar BN, Kumar BS, Nagaiah K. Towards Stereoselective Synthesis of the C(31)-C(39) and C(20)-C(27) Fragments of Phorboxazole A. Helv Chim Acta 2015. [DOI: 10.1002/hlca.201400279] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Godin F, Mochirian P, St-Pierre G, Guindon Y. Total synthesis of zincophorin methyl ester. Stereocontrol of 1,2-induction using sterically hindered enoxysilanes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.11.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Chen QH, Kingston DGI. Zampanolide and dactylolide: cytotoxic tubulin-assembly agents and promising anticancer leads. Nat Prod Rep 2014; 31:1202-26. [PMID: 24945566 PMCID: PMC4126874 DOI: 10.1039/c4np00024b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Indexed: 12/21/2022]
Abstract
Zampanolide is a marine natural macrolide and a recent addition to the family of microtubule-stabilizing cytotoxic agents. Zampanolide exhibits unique effects on tubulin assembly and is more potent than paclitaxel against several multi-drug resistant cancer cell lines. A high-resolution crystal structure of αβ-tubulin in complex with zampanolide explains how taxane-site microtubule-stabilizing agents promote microtubule assemble and stability. This review provides an overview of current developments of zampanolide and its related but less potent analogue dactylolide, covering their natural sources and isolation, structure and conformation, cytotoxic potential, structure-activity studies, mechanism of action, and syntheses.
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Affiliation(s)
- Qiao-Hong Chen
- Department of Chemistry , California State University, Fresno , 2555 E. San Ramon Avenue, M/S SB70 , Fresno , CA 93740 , USA . ; Fax: +1 559 2784402 ; Tel: +1 559 2782394
| | - David G. I. Kingston
- Department of Chemistry and Virginia Tech Center for Drug Discovery , M/C 0212, Virginia Tech , Blacksburg , VA 24061 , USA . ; Fax: +1 540 2313255 ; Tel: +1 540 2316570
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13
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Rong YW, Zhang QH, Wang W, Li BL. A Simple and Clean Method for O-Isopropylidenation of Carbohydrates. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.7.2165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Dayaker G, Durand T, Balas L. A Versatile and Stereocontrolled Total Synthesis of Dihydroxylated Docosatrienes Containing a ConjugatedE,E,Z-Triene. Chemistry 2014; 20:2879-87. [DOI: 10.1002/chem.201304526] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Indexed: 11/11/2022]
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15
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Chatterjee B, Bera S, Mondal D. Julia–Kocienski olefination: a key reaction for the synthesis of macrolides. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2013.09.027] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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17
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Kamptmann SB, Brückner R. Stereocontrolled Synthesis of a Cn-Cn+7Building Block (“Eastern Moiety”) for the Unnatural Enantiomers of Important Polyol,Polyene Antibiotics Based on a Ring-Closing Metathesis and an Aldol Addition of a Lactone Enolate. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300183] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Prudhvi Raju N, Jagan Mohan Reddy B, Anjibabu R, Muralikrishna K, Subba Reddy B. A simple and expeditious synthesis of 2,3,6-trisubstituted tetrahydropyrans through (3,5)-oxonium-ene cyclization using molecular iodine. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Rajapaksa NS, McGowan MA, Rienzo M, Jacobsen EN. Enantioselective total synthesis of (+)-reserpine. Org Lett 2013; 15:706-9. [PMID: 23331099 DOI: 10.1021/ol400046n] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A catalytic, enantioselective synthesis of (+)-reserpine is reported. The route features a highly diastereoselective, chiral catalyst-controlled formal aza-Diels-Alder reaction between a 6-methoxytryptamine-derived dihydro-β-carboline and an enantioenriched α-substituted enone to form a key tetracyclic intermediate. This approach addresses the challenge of setting the C3 stereogenic center by using catalyst control. Elaboration of the tetracycle to (+)-reserpine includes an intramolecular aldol cyclization and a highly diastereoselective hydrogenation of a sterically hindered enoate.
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Affiliation(s)
- Naomi S Rajapaksa
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA
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20
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Clarke PA, Ermanis K. Synthesis of the C20–C32 Tetrahydropyran Core of the Phorboxazoles and the C22 Epimer via a Stereodivergent Michael Reaction. Org Lett 2012; 14:5550-3. [DOI: 10.1021/ol3026523] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul A. Clarke
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Kristaps Ermanis
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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21
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Kuntiyong P, Lee TH, Kranemann CL, White JD. Total synthesis of the marine toxin phorboxazole A using palladium(II)-mediated intramolecular alkoxycarbonylation for tetrahydropyran synthesis. Org Biomol Chem 2012; 10:7884-99. [PMID: 22910851 DOI: 10.1039/c2ob25766a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potent antitumor agent phorboxazole A was synthesized from six subunits comprising C1-C2 (115), C3-C8 (98), C9-C19 (74), C20-C32 (52), C33-C41 (84) and C42-C46 (85). Tetrahydropyrans B and C containing cis-2,6-disubstitution were fabricated via palladium(II)-mediated intramolecular alkoxycarbonylation which, in the case of tetrahydropyran C, was carried out with catalytic palladium(II) and p-benzoquinone as the stoichiometric re-oxidant. Tetrahydropyran D was obtained by a stereoselective tin(IV)-catalyzed coupling of a C9 aldehyde with an allylsilane, and the C19-C20 connection was made using a completely stereoselective Wittig-Schlosser (E) olefination. Coupling of the oxazole C32 methyl substituent with the intact C33-C46 δ-lactone 3was accompanied by elimination of the vinyl bromide to a terminal alkyne, but the C32-C33 linkage was implemented successfully with 83 and C33-C41 lactone 84. The C42-C46 segment of the side chain was then appended via Julia-Kocienski olefination. The macrolide portion of phorboxazole A was completed by means of an Ando-Still-Gennari intramolecular (Z)-selective olefination at C2-C3 which required placement of a (dimethoxyphosphinyl)acetate moiety at C24. Final deprotection led to phorboxazole A via a route in which the longest linear sequence is 37 steps and the overall yield is 0.36%.
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Affiliation(s)
- Punlop Kuntiyong
- Department of Chemistry, Oregon State University, Corvallis, Oregon, USA
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22
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Reddy BS, Anjum SR, Reddy GM, Yadav J. A novel tandem ene/Prins cyclization for the synthesis of octahydropyrano[2,3-c]pyrrole derivatives. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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23
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Fuwa H. Total Synthesis of Tetrahydropyran-Containing Natural Products Exploiting Intramolecular Oxa-Conjugate Cyclization. HETEROCYCLES 2012. [DOI: 10.3987/rev-12-730] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Takahata H, Natori Y, Kikuchi S, Yoshimura Y, Kato A, Adachi I. ASYMMETRIC SYNTHESIS OF 1-ALKYL-2-DEOXYIMINOFURANOSES VIA THE IRIDIUM-CATALYZED INTRAMOLECULAR CYCLIZATION OF AN ALLYLIC CARBONATE. HETEROCYCLES 2012. [DOI: 10.3987/com-12-s(n)99] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Haleema S, Sasi PV, Ibnusaud I, Polavarapu PL, Kagan HB. Enantiomerically pure compounds related to chiral hydroxy acids derived from renewable resources. RSC Adv 2012. [DOI: 10.1039/c2ra21205f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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26
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Fuwa H, Ichinokawa N, Noto K, Sasaki M. Stereoselective Synthesis of 2,6-Cis-Substituted Tetrahydropyrans: Brønsted Acid-Catalyzed Intramolecular Oxa-Conjugate Cyclization of α,β-Unsaturated Ester Surrogates. J Org Chem 2011; 77:2588-607. [DOI: 10.1021/jo202179s] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Haruhiko Fuwa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Naoki Ichinokawa
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Kenkichi Noto
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
| | - Makoto Sasaki
- Graduate
School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577,
Japan
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VO(acac)(2)/H(2)O(2)/NaI: a mild and efficient combination for the cleavage of dithioacetal derivatives of sugars. Carbohydr Res 2011; 346:2629-32. [PMID: 21982463 DOI: 10.1016/j.carres.2011.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 09/06/2011] [Accepted: 09/07/2011] [Indexed: 11/20/2022]
Abstract
A wide variety of dithioacetal derivatives of sugars can be cleaved easily into the corresponding open-chain aldehydo sugars using an efficient combination of VO(acac)(2)/H(2)O(2)/NaI at 0-5°C. Some of the salient features of this protocol are mild reaction conditions, good yields, short reaction times, easy work-up procedures, and non-involvement of toxic chemicals.
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Robertson J, North C, Sadig JE. Asymmetric synthesis of the C(6–18) bis(tetrahydropyran)spiroacetal fragment of the lituarines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.116] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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A new strategy for the synthesis of substituted dihydropyrones and tetrahydropyrones via palladium-catalyzed coupling of thioesters. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.114] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Tetrabutylammonium tribromide (TBATB): a mild and efficient catalyst for O-isopropylidenation of carbohydrates. Carbohydr Res 2011; 346:673-7. [DOI: 10.1016/j.carres.2010.12.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 12/20/2010] [Accepted: 12/21/2010] [Indexed: 11/23/2022]
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31
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Fuwa H, Noto K, Sasaki M. Biosynthesis-Inspired Intramolecular Oxa-Conjugate Cyclization of α,β-Unsaturated Thioesters: Stereoselective Synthesis of 2,6-cis-Substituted Tetrahydropyrans. Org Lett 2011; 13:1820-3. [DOI: 10.1021/ol200333p] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haruhiko Fuwa
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Kenkichi Noto
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Makoto Sasaki
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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Clarke PA, Santos S, Mistry N, Burroughs L, Humphries AC. The Asymmetric Maitland−Japp Reaction and Its Application to the Construction of the C1−C19 Bis-pyran Unit of Phorboxazole B. Org Lett 2011; 13:624-7. [DOI: 10.1021/ol102860r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul A. Clarke
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Soraia Santos
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Nimesh Mistry
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Laurence Burroughs
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Alexander C. Humphries
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
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33
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Wang B, Hansen TM, Weyer L, Wu D, Wang T, Christmann M, Lu Y, Ying L, Engler MM, Cink RD, Lee CS, Ahmed F, Forsyth CJ. Total Synthesis of Phorboxazole A via de Novo Oxazole Formation: Convergent Total Synthesis. J Am Chem Soc 2010; 133:1506-16. [DOI: 10.1021/ja1089099] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Wang B, Hansen TM, Wang T, Wu D, Weyer L, Ying L, Engler MM, Sanville M, Leitheiser C, Christmann M, Lu Y, Chen J, Zunker N, Cink RD, Ahmed F, Lee CS, Forsyth CJ. Total Synthesis of Phorboxazole A via de Novo Oxazole Formation: Strategy and Component Assembly. J Am Chem Soc 2010; 133:1484-505. [DOI: 10.1021/ja108906e] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Díaz-Oltra S, Angulo-Pachón CA, Murga J, Falomir E, Carda M, Marco JA. Synthesis and biological properties of the cytotoxic 14-membered macrolides aspergillide A and B. Chemistry 2010; 17:675-88. [PMID: 21207589 DOI: 10.1002/chem.201001682] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Revised: 09/03/2010] [Indexed: 11/07/2022]
Abstract
Total, stereoselective syntheses of the naturally occurring, cytotoxic macrolides aspergillide A and B are described. Olefin metatheses and asymmetric allylations were key steps in the synthetic sequences. Cytotoxicity assays against several tumor cell lines have been performed for the two aspergillides and some of the intermediates or side products of the synthetic sequence. One of these intermediates has been found markedly active against the human leukemia cancer cell line HL-60, with an IC(50) value comparable with that of the clinical drug fludarabine.
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Affiliation(s)
- Santiago Díaz-Oltra
- Depart. de Q. Inorgánica y Orgánica, Univ. Jaume I, Avda. Sos Baynat s/n, 12071 Castellón, Spain
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Bromodimethylsulfonium bromide (BDMS) mediated dithioacetalization of carbohydrates under solvent-free conditions. Carbohydr Res 2010; 345:2139-45. [DOI: 10.1016/j.carres.2010.07.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 07/26/2010] [Accepted: 07/29/2010] [Indexed: 11/23/2022]
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Yun SY, Hansen EC, Volchkov I, Cho EJ, Lo WY, Lee D. Total synthesis of (-)-dactylolide. Angew Chem Int Ed Engl 2010; 49:4261-3. [PMID: 20458725 DOI: 10.1002/anie.201001681] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sang Young Yun
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
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38
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Synthetic studies on the phorboxazoles: a short synthesis of an epi-C23 tetrahydropyran core. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Yun S, Hansen E, Volchkov I, Cho E, Lo W, Lee D. Total Synthesis of (−)-Dactylolide. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201001681] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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Ando K, Narumiya K, Takada H, Teruya T. Z-Selective Intramolecular Horner−Wadsworth−Emmons Reaction for the Synthesis of Macrocyclic Lactones. Org Lett 2010; 12:1460-3. [DOI: 10.1021/ol100071d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kaori Ando
- Department of Chemistry, Fuculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan, and College of Education, University of the Ryukyus, Nishihara-cho, Okinawa 903-0213, Japan
| | - Kenji Narumiya
- Department of Chemistry, Fuculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan, and College of Education, University of the Ryukyus, Nishihara-cho, Okinawa 903-0213, Japan
| | - Hirokazu Takada
- Department of Chemistry, Fuculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan, and College of Education, University of the Ryukyus, Nishihara-cho, Okinawa 903-0213, Japan
| | - Taiji Teruya
- Department of Chemistry, Fuculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan, and College of Education, University of the Ryukyus, Nishihara-cho, Okinawa 903-0213, Japan
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Díaz-Oltra S, Angulo-Pachón CA, Murga J, Carda M, Marco JA. Stereoselective Synthesis of the Cytotoxic 14-Membered Macrolide Aspergillide A. J Org Chem 2010; 75:1775-8. [DOI: 10.1021/jo9027038] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Santiago Díaz-Oltra
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, E-12071 Castellón, Spain
| | - César A. Angulo-Pachón
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, E-12071 Castellón, Spain
| | - Juan Murga
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, E-12071 Castellón, Spain
| | - Miguel Carda
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, E-12071 Castellón, Spain
| | - J. Alberto Marco
- Departamento de Química Orgánica, Universitat de Valencia, E-46100 Burjassot, Valencia, Spain
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Khan AT, Musawwer Khan M. A simple and convenient synthetic protocol for O-isopropylidenation of sugars using bromodimethylsulfonium bromide (BDMS) as a catalyst. Carbohydr Res 2010; 345:154-9. [DOI: 10.1016/j.carres.2009.09.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2009] [Revised: 09/11/2009] [Accepted: 09/15/2009] [Indexed: 10/20/2022]
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43
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Yu X, Cao Z, Zhang J. Organocatalytic hetero [4+2] cycloaddition reactions of 2-(1-alkynyl)-2-alkene-1-ones: metal-free access to highly substituted 4H-pyrans. Org Biomol Chem 2010; 8:5059-61. [DOI: 10.1039/c0ob00334d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Houghton SR, Furst L, Boddy CN. Biomimetic transannular oxa-conjugate addition approach to the 2,6-disubstituted dihydropyran of laulimalide yields an unprecedented transannular oxetane. J Org Chem 2009; 74:1454-63. [PMID: 19159194 DOI: 10.1021/jo8023494] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
2,6-Disubstituted dihydropyrans are a common feature in many bioactive polyketides, including the anticancer marine polyketide laulimalide. While much of the uncharacterized biosynthetic pathway for laulimalide can be confidently postulated, the biosynthetic origins of the trans 2,6-disubstituted dihydropyran cannot. We hypothesize that a transannular oxa-conjugate addition in a macrocyclic laulimalide precursor could be the origin of the 2,6-dihydropyran. To test this hypothesis, we constructed a model containing the key functional groups for oxa-conjugate addition-mediated dihydropyran formation. Under acid-mediated conditions, the model under went regiospecific oxa-conjugate addition producing a stable trans oxetane as the only regioisomer. The desired, more stable dihydropyran was not detected. This unprecedented regiospecificity is unexpected due to the ring strain of the oxetane and the anticipated facile ring opening retro-oxa-conjugate addition. The oxetane is stable to acid and basic conditions, as are a number of literature acyclic oxetanes that could undergo similar retro-oxa-conjugate addition. While the source of the oxetane kinetic stability is yet to be characterized, it may enable general oxetane construction via oxa-conjugate addition. The more stable dihydropyran regioisomer could not be generated due to poor geometrical orbital alignment and hard-soft incompatibility between the hard oxygen nucleophile and the soft activated polyenoate electrophile. These factors disfavor the breaking of conjugation by oxa-conjugate addition. Based on these results we propose that dihydropyran formation does not occur on completed polyketide macrocycles as we had proposed but rather during polyketide biosynthesis on the growing polyketide chain.
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Affiliation(s)
- Stephen R Houghton
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, USA
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45
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Yamamoto Y. Silver-Catalyzed Csp−H and Csp−Si Bond Transformations and Related Processes. Chem Rev 2008; 108:3199-222. [DOI: 10.1021/cr078359u] [Citation(s) in RCA: 196] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoshihiko Yamamoto
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookatyama, Meguro-ku, Tokyo 152-8552, Japan
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46
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Synthesis of six-membered oxygenated heterocycles through carbon–oxygen bond-forming reactions. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.11.092] [Citation(s) in RCA: 212] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Smith AB, Razler TM, Ciavarri JP, Hirose T, Ishikawa T, Meis RM. A Second-Generation Total Synthesis of (+)-Phorboxazole A. J Org Chem 2008; 73:1192-200. [DOI: 10.1021/jo7018152] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amos B. Smith
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Thomas M. Razler
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Jeffrey P. Ciavarri
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tomoyasu Hirose
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tomoyasu Ishikawa
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Regina M. Meis
- Department of Chemistry, The Penn Center for Molecular Discovery, and Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104
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48
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Linder J, Blake AJ, Moody CJ. Total synthesis of siphonazole and its O-methyl derivative, structurally unusual bis-oxazole natural products. Org Biomol Chem 2008; 6:3908-16. [DOI: 10.1039/b810855b] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kartika R, Taylor RE. Electrophile-Induced Ether Transfer: Stereoselective Synthesis of 2,4,6-Trisubstituted Tetrahydropyrans. Angew Chem Int Ed Engl 2007; 46:6874-7. [PMID: 17674386 DOI: 10.1002/anie.200702018] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rendy Kartika
- Department of Chemistry and Biochemistry and the Walther Cancer Research Center, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN 46556-5670, USA
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50
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Kartika R, Taylor R. Electrophile-Induced Ether Transfer: Stereoselective Synthesis of 2,4,6-Trisubstituted Tetrahydropyrans. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200702018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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