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Hosomi H, Akatsuka A, Dan S, Iwasaki H, Nambu H, Kojima N. Synthesis of Acetogenin Analogs Comprising Pyrimidine Moieties Linked by Amine Bonds and Their Inhibitory Activity against Human Cancer Cell Lines. Chem Pharm Bull (Tokyo) 2022; 70:823-826. [DOI: 10.1248/cpb.c22-00574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Akinobu Akatsuka
- Cancer Chemotherapy Center, Japanese Foundation for Cancer Research
| | - Shingo Dan
- Cancer Chemotherapy Center, Japanese Foundation for Cancer Research
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Ohta K, Fushimi T, Okamura M, Akatsuka A, Dan S, Iwasaki H, Yamashita M, Kojima N. Structure-antitumor activity relationship of hybrid acetogenins focusing on connecting groups between heterocycles and the linker moiety. RSC Adv 2022; 12:15728-15739. [PMID: 35685710 PMCID: PMC9131733 DOI: 10.1039/d2ra02399g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/17/2022] [Indexed: 11/30/2022] Open
Abstract
We studied hybrid molecules of annonaceous acetogenins and mitochondrial complex I-inhibiting insecticides to develop a novel anticancer agent. A structure–antitumor activity relationship study focusing on the connecting groups between the heterocycles and the linker moiety bearing the tetrahydrofuran moiety was conducted. Eleven hybrid acetogenins with 1-methylpyrazole instead of γ-lactone were synthesized and their growth inhibitory activities against 39 human cancer cell lines were evaluated. The nitrogen atom at the 2′-position of the linker moiety was essential for inhibiting cancer growth. The 1-methylpyrazole-5-sulfonamide analog showed potent growth inhibition of NCI-H23, a human lung cancer cell line, in a xenograft mouse assay without critical toxicity. Hence, the results of this study may pave the way for the development of novel anticancer agents, with both selective and broad anticancer activities. The in vivo active 1-methylpyrazole-5-sulfonamide analog of acetogenins was obtained by the structure–antitumor activity relationship, focusing on the connecting groups between the heterocycle and the linker.![]()
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Affiliation(s)
- Kaito Ohta
- Kyoto Pharmaceutical University 1 Misasagi-Shichono-cho, Yamashina-ku Kyoto 607-8412 Japan
| | - Tetsuya Fushimi
- Graduate School of Pharmaceutical Sciences, Osaka University 1-6 Yamadaoka Suita Osaka 565-0871 Japan
| | - Mutsumi Okamura
- Cancer Chemotherapy Center, Japanese Foundation for Cancer Research 3-8-1 Ariake-ku Tokyo 135-8550 Japan
| | - Akinobu Akatsuka
- Cancer Chemotherapy Center, Japanese Foundation for Cancer Research 3-8-1 Ariake-ku Tokyo 135-8550 Japan
| | - Shingo Dan
- Cancer Chemotherapy Center, Japanese Foundation for Cancer Research 3-8-1 Ariake-ku Tokyo 135-8550 Japan
| | - Hiroki Iwasaki
- Kyoto Pharmaceutical University 1 Misasagi-Shichono-cho, Yamashina-ku Kyoto 607-8412 Japan
| | - Masayuki Yamashita
- Kyoto Pharmaceutical University 1 Misasagi-Shichono-cho, Yamashina-ku Kyoto 607-8412 Japan
| | - Naoto Kojima
- Kyoto Pharmaceutical University 1 Misasagi-Shichono-cho, Yamashina-ku Kyoto 607-8412 Japan
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Nájera C, Foubelo F, Sansano JM, Yus M. Stereodivergent routes in organic synthesis: marine natural products, lactones, other natural products, heterocycles and unnatural compounds. Org Biomol Chem 2020; 18:1279-1336. [PMID: 32025682 DOI: 10.1039/c9ob02597a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantio- and diastereodivergent routes to marine-origin natural products with different sizes of cyclic ethers and lactones have been used in order to assign stereochemical features. Kainoid amino acids such as isodomoic acids have been synthesized using diastereodivergent routes. The bis(indole) alkaloid dragmacidin F has been prepared by enantiodivergent strategies as well as furanoterpenes and the tetracyclic agelastatin A. Natural products containing five-membered lactones like quercus lactones, muricatacins, goniofufuranones, methylenolactocins and frenolicin B have been synthesized using stereodivergent routes. Macrolides are very abundant lactones and have been mainly prepared from the corresponding seco-acids by lactonization, such as lasiodiplodin, zaeralanes, macrosphelides and haloprins, or by ring-closing metathesis, such as aspercyclides, microcarpalides, macrolides FD-891 and 892, and tetradic-5-en-9-olides. Other natural products including cyclic ethers (such as sesamin, asarinin, acetogenins, centrolobines and nabilones), alcohols (such as sulcatol), esters (such as methyl jasmonates), polycyclic precursors of fredericamycin, amino alcohols (such as ambroxol and sphingosines), isoprostanes, isofurans, polyketide precursors of anachelins, brevicomins, gummiferol, shikimic acid and the related compounds, and the pheromone disparlure have been synthesized stereodivergently. Heterocyclic systems such as epoxides, theobroxides and bromoxones, oxetan-3-ones, 5- to 8-membered cyclic ethers, azetidones, γ-lactams, oxazolidinones, bis(oxazolines), dihydropyridoisoindolines and octahydroisoquinolines have been prepared following stereodivergent routes. Stereodivergent routes to unnatural compounds such as alkenes, dienes, allenes, cyclopropanes, alcohols, aldols, amines, amino alcohols, β-amino acids, carboxylic acids, lactones, nitriles and α-amino nitriles have been considered as well.
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Affiliation(s)
- Carmen Nájera
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain.
| | - Francisco Foubelo
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain. and Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - José M Sansano
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain. and Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante, Apdo. 99, E-03080 Alicante, Spain.
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Kojima N, Hayashi H, Iwasaki H, Yamashita M. Syntheses of C2'-Fluorinated Analogs of Solamin. Chem Pharm Bull (Tokyo) 2020; 68:675-678. [PMID: 32612003 DOI: 10.1248/cpb.c20-00223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The details of the total syntheses of C2'-fluorinated analogs of solamin, an antitumor annonaceous acetogenin, are described. Fluorine was enantioselectively introduced at the C2'-position by organocatalytic α-fluorination of the aldehyde according to a previously reported method. C2'-fluorinated solamin and its C2'-diastereomer were synthesized by the Sonogashira coupling of a tetrahydrofuran fragment and fluorine-containing γ-lactone fragments.
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Affiliation(s)
| | - Hiromi Hayashi
- Graduate School of Pharmaceutical Sciences, Osaka University
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5
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Matsumoto T, Akatsuka A, Dan S, Iwasaki H, Yamashita M, Kojima N. Synthesis and cancer cell growth inhibition effects of acetogenin analogs bearing ethylene glycol units for enhancing the water solubility. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered. The diastereodivergent synthesis of alkenes from alkynes is also included. Finally, stereodivergent intramolecular and intermolecular cycloadditions and other cyclizations are also reported.
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Affiliation(s)
- Irina P Beletskaya
- Chemistry Department , M. V. Lomonosov Moscow State University , Leninskie Gory 1 , 119992 Moscow , Russia
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
| | - Miguel Yus
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , E-03080 Alicante , Spain
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Convergent synthesis of stereoisomers of THF ring moiety of acetogenin thiophene analogue and their antiproliferative activities against human cancer cell lines. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Highly efficient microwave assisted synthesis of polyfunctional 1,3-dioxolanes from γ -hydroxypropynals. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Kojima N, Suga Y, Matsumoto T, Tanaka T, Akatsuka A, Yamori T, Dan S, Iwasaki H, Yamashita M. Synthesis of dansyl-labeled probe of thiophene analogue of annonaceous acetogenins for visualization of cell distribution and growth inhibitory activity toward human cancer cell lines. Bioorg Med Chem 2015; 23:1276-83. [DOI: 10.1016/j.bmc.2015.01.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 01/20/2015] [Accepted: 01/21/2015] [Indexed: 10/24/2022]
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10
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Kojima N, Fushimi T, Tatsukawa T, Tanaka T, Okamura M, Akatsuka A, Yamori T, Dan S, Iwasaki H, Yamashita M. Thiophene-3-carboxamide analogue of annonaceous acetogenins as antitumor drug lead. Eur J Med Chem 2014; 86:684-9. [DOI: 10.1016/j.ejmech.2014.09.026] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 11/29/2022]
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11
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Kojima N, Fushimi T, Tatsukawa T, Yoshimitsu T, Tanaka T, Yamori T, Dan S, Iwasaki H, Yamashita M. Structure–activity relationships of hybrid annonaceous acetogenins: Powerful growth inhibitory effects of their connecting groups between heterocycle and hydrophobic carbon chain bearing THF ring on human cancer cell lines. Eur J Med Chem 2013; 63:833-9. [DOI: 10.1016/j.ejmech.2013.03.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Revised: 03/01/2013] [Accepted: 03/04/2013] [Indexed: 11/30/2022]
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12
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Liu CW, Yeh TC, Chen CH, Yu CC, Chen CS, Hou DR, Guh JH. Total synthesis of 14,21-diepi-squamocin-K. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Critical role of a methyl group on the γ-lactone ring of annonaceous acetogenins in the potent inhibition of mitochondrial complex I. Bioorg Med Chem Lett 2013; 23:1217-9. [PMID: 23375227 DOI: 10.1016/j.bmcl.2013.01.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 12/28/2012] [Accepted: 01/04/2013] [Indexed: 11/20/2022]
Abstract
C34-epi and C34-epi-C35-trifluoro analogues of solamin, a mono-THF annonaceous acetogenin, were synthesized. Their inhibitory activity, along with previously synthesized analogues (C35-fluoro, C35-difluoro, and C35-trifluorosolamins), against bovine mitochondrial NADH-ubiquinone oxidoreductase (complex I) was determined. The present study revealed that the methyl group on the γ-lactone moiety is critical to the potent inhibition of complex I by natural acetogenins.
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Synthesis of bis-tetrahydrofuran core of salzmanolin using intramolecular oxymercuration reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0702-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Design and synthesis of C35-fluorinated solamins and their growth inhibitory activities against human cancer cell lines. Bioorg Med Chem Lett 2011; 21:5745-9. [DOI: 10.1016/j.bmcl.2011.08.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 07/29/2011] [Accepted: 08/02/2011] [Indexed: 11/21/2022]
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16
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Kojima N, Morioka T, Urabe D, Yano M, Suga Y, Maezaki N, Ohashi-Kobayashi A, Fujimoto Y, Maeda M, Yamori T, Yoshimitsu T, Tanaka T. Convergent synthesis of fluorescence-labeled probes of Annonaceous acetogenins and visualization of their cell distribution. Bioorg Med Chem 2010; 18:8630-41. [DOI: 10.1016/j.bmc.2010.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 10/01/2010] [Accepted: 10/02/2010] [Indexed: 10/18/2022]
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17
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Chen CH, Kuan TC, Lu KJ, Hou DR. Asymmetric synthesis of bis-tetrahydrofuran cores in annonaceous acetogenins. Org Biomol Chem 2010; 8:3624-6. [DOI: 10.1039/c004672h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Kojima N, Tanaka T. Medicinal chemistry of Annonaceous acetogenins: design, synthesis, and biological evaluation of novel analogues. Molecules 2009; 14:3621-61. [PMID: 19783948 PMCID: PMC6254973 DOI: 10.3390/molecules14093621] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2009] [Revised: 08/31/2009] [Accepted: 09/11/2009] [Indexed: 11/16/2022] Open
Abstract
Most Annonaceous acetogenins are characterized by between one and three THF ring(s) with one or two flanking hydroxyl group(s) in the center of a C32/34 fatty acid, and the terminal carboxylic acid is combined with a 2-propanol unit to form an alpha,beta-unsaturated gamma-lactone. While many studies have addressed the properties and synthesis of natural acetogenins due to their attractive biological activities and unique structural features, a number of analogues have also been described. This review covers the design, synthesis, and biological evaluation of acetogenin analogues.
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Affiliation(s)
- Naoto Kojima
- Authors to whom correspondence should be addressed; E-Mails: (N.K.); (T.T.); Tel.: +81-6-6879-8210; Fax: +81-6-6879-8214
| | - Tetsuaki Tanaka
- Authors to whom correspondence should be addressed; E-Mails: (N.K.); (T.T.); Tel.: +81-6-6879-8210; Fax: +81-6-6879-8214
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Tanaka T, Kojima N, Morioka T, Yano M, Suga Y, Maezaki N. Convergent Synthesis of Fluorescence Labeled Solamin. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(d)45] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Synthesis of C4-fluorinated solamins and their growth inhibitory activity against human cancer cell lines. Bioorg Med Chem Lett 2008; 18:6451-3. [DOI: 10.1016/j.bmcl.2008.10.069] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Revised: 10/08/2008] [Accepted: 10/16/2008] [Indexed: 11/24/2022]
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21
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Kojima N, Fushimi T, Maezaki N, Tanaka T, Yamori T. Synthesis of hybrid acetogenins, α,β-unsaturated-γ-lactone-free nitrogen-containing heterocyclic analogues, and their cytotoxicity against human cancer cell lines. Bioorg Med Chem Lett 2008; 18:1637-41. [DOI: 10.1016/j.bmcl.2008.01.057] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Revised: 01/09/2008] [Accepted: 01/15/2008] [Indexed: 10/22/2022]
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22
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Guillarme S, Plé K, Banchet A, Liard A, Haudrechy A. Alkynylation of chiral aldehydes: alkoxy-, amino-, and thio-substituted aldehydes. Chem Rev 2007; 106:2355-403. [PMID: 16771453 DOI: 10.1021/cr0509915] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stéphane Guillarme
- Laboratoire de Glycosynthèse, UMR 6519, UFR Sciences Exactes et Naturelles, Bât. 18, BP 1039, 51687 Reims Cedex 2, France
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23
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Molander GA, Sommers EM, Neufeldt SR. Palladium(0)-catalyzed synthesis of chiral ene-allenes using alkenyl trifluoroborates. J Org Chem 2006; 71:1563-8. [PMID: 16468806 PMCID: PMC2504514 DOI: 10.1021/jo052201x] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Enantioenriched allenes serve as chiral transfer reagents, making them attractive synthetic targets. Herein, the synthesis of enantioenriched allenes utilizing a Pd(0)-catalyzed cross-coupling reaction of propargylic carbonates and phosphates with alkenyl trifluoroborates is reported. Di-, tri-, and tetrasubstituted allenes were synthesized in moderate to high optical yields. Several racemic allenes possessing various functional groups were also synthesized.
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Affiliation(s)
- Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA.
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Marshall JA, Sabatini JJ. An Outside-In Approach to Adjacent Bistetrahydrofuran Annonaceous Acetogenins with C2 Core Symmetry. Total Synthesis of Asimicin and a C32 Analogue. Org Lett 2006; 8:3557-60. [PMID: 16869659 DOI: 10.1021/ol061352z] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] A synthesis of the Annonaceous acetogenin asimicin and a side-chain analogue has been achieved by a highly convergent route in which Grubbs cross-metathesis plays a key role.
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Affiliation(s)
- James A Marshall
- Department of Chemistry, P.O. Box 400319, University of Virginia, Charlottesville, Virginia 22904, USA.
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Tominaga H, Maezaki N, Yanai M, Kojima N, Urabe D, Ueki R, Tanaka T. First Total Synthesis of Longimicin D. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500850] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Maezaki N, Tominaga H, Kojima N, Yanai M, Urabe D, Ueki R, Tanaka T, Yamori T. Total Synthesis of Murisolins and Evaluation of Tumor-Growth Inhibitory Activity. Chemistry 2005; 11:6237-45. [PMID: 16075441 DOI: 10.1002/chem.200500462] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Convergent total syntheses of murisolin (1), natural 16,19-cis-murisolin 2, and unnatural 16,19-cis-murisolin 3 were accomplished by asymmetric alkynylation of alpha-tetrahydrofuranic aldehyde with a diyne and Sonogashira coupling with a gamma-lactone segment as the key steps. Stereoisomers of alpha-tetrahydrofuranic aldehyde were synthesized with high optical purity and the asymmetric alkynylation of these with 1,6-heptadiyne proceeded in good yield and with high diastereoselectivity. The cell-growth inhibition profile and COMPARE analysis of the synthetic compounds 1-3 were also investigated.
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Affiliation(s)
- Naoyoshi Maezaki
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
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Mertz E, Tinsley JM, Roush WR. [3 + 2]-Annulation Reactions of Chiral Allylsilanes and Chiral Aldehydes. Studies on the Synthesis of Bis-tetrahydrofuran Substructures of Annonaceous Acetogenins. J Org Chem 2005; 70:8035-46. [PMID: 16277325 DOI: 10.1021/jo0511290] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[Structure: See text] Double asymmetric [3 + 2]-annulation reactions of chiral beta-silyloxyallylsilanes with chiral 2-tetrahydrofuranyl carboxaldehydes have been studied, leading to the stereocontrolled synthesis of six diastereomeric bis-tetrahydrofuran structures corresponding to the core subunits of members of the Annonaceous acetogenin family of natural products. Transition-state models are proposed to account for the stereoselectivity of the double-stereodifferentiating [3 + 2]-annulation reactions.
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Affiliation(s)
- Eric Mertz
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, USA
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Kirkham JE, Courtney TD, Lee V, Baldwin JE. Asymmetric synthesis of cytotoxic sponge metabolites R-strongylodiols A and B and an analogue. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.05.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Das S, Li LS, Abraham S, Chen Z, Sinha SC. A Bidirectional Approach to the Synthesis of a Complete Library of Adjacent-Bis-THF Annonaceous Acetogenins. J Org Chem 2005; 70:5922-31. [PMID: 16018687 DOI: 10.1021/jo050697c] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Thirty-six stereoisomers of bifunctional adjacent bis-THF (tetrahydrofuran) lactones have been synthesized, which can afford a complete library of the adjacent bis-THF Annonaceous acetogenins. The bis-THF lactones were synthesized, starting from the enantioselectively pure 8,9:12,13-(E,E and Z,E)-16-benzyloxy-5-hydroxy-hexadeca-1,4-olide, in a highly distereoselective manner using oxidative reactions, including rhenium(VII) oxides-mediated oxidative cyclization, Shi's asymmetric epoxidation, and Sharpless asymmetric dihydroxylation reactions. Using the nonsymmetrical bis-THF lactones, syntheses of two nonnatural acetogenins were achieved.
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Affiliation(s)
- Sanjib Das
- The Skaggs Institute for Chemical Biology and the Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
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Abstract
Systematic synthesis of mono- and bis-THF ring cores, synthetic intermediates of antitumor annonaceous acetogenins, has been achieved by asymmetric alkynylation and subsequent stereodivergent THF ring formation as key steps. The asymmetric alkynylation of alpha-oxyaldehyde and alpha-tetrahydrofuranic aldehyde with (S)-3-butyne-1,2-diol derivatives gave good yield with very high diastereoselectivity. These adducts were converted into mono- and bis-THF cores via two kinds of one-pot THF ring formation, respectively. In addition, the total synthesis of murisolin, which shows cytotoxic activity against human tumor cell lines with potency from 10(5) to 10(6) times that of adriamycin, was also achieved.
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Affiliation(s)
- Naoto Kojima
- Graduate School of Pharmaceutical Sciences, Osaka University, Suite, Osaka 565-0871, Japan.
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