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Carroll AW, Pyne SG. The History of the Glycosidase Inhibiting Hyacinthacine C-type Alkaloids: From Discovery to Synthesis. Curr Org Synth 2019; 16:498-522. [PMID: 31984928 PMCID: PMC7432187 DOI: 10.2174/1570179416666190126100312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/10/2019] [Accepted: 01/15/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND The inherent glycosidase inhibitory activity and potentially therapeutic value of the polyhydroxylated pyrrolizidine alkaloids containing a hydroxymethyl substituent at the C-3 position have been well documented. Belonging to this class, the naturally occurring hyacinthacine C-type alkaloids are of general interest among iminosugar researchers. Their selective micromolar α -glycosidase inhibitory ranges (10 - 100 μM) suggest that these azasugars are potential leads for treating type II diabetes. However, the structures of hyacinthacine C1, C3 and C4 are insecure with hyacinthacine C5 being recently corrected. OBJECTIVE This review presents the hyacinthacine C-type alkaloids: their first discovery to the most recent advancements on the structures, biological activities and total synthesis. CONCLUSION The hyacinthacine C-type alkaloids are of exponentially increasing interest and will undoubtedly continue to be reported as synthetic targets. They represent a challenging but rewarding synthetic feat for the community of those interested in accessing biologically active iminosugars. Since 2009, ten total syntheses have been employed towards accessing similarly related products but only three have assessed the glycosidase inhibitory activity of the final products. This suggests the need for an accessible and universal glycosidase inhibitory assay so to accurately determine the structure-activity relationship of how the hyacinthacine C-type alkaloids inhibit specific glycosidases. Confirming the correct structures of the hyacinthacine C-type alkaloids as well as accessing various analogues continues to strengthen the foundation towards a marketable treatment for type II diabetes and other glycosidase related illnesses.
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Affiliation(s)
- Anthony W. Carroll
- School of Chemistry, University of Wollongong, Wollongong, New South Wales, Wollongong, NSW 2522, Australia
| | - Stephen G. Pyne
- School of Chemistry, University of Wollongong, Wollongong, New South Wales, Wollongong, NSW 2522, Australia
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Gati W, Yamamoto H. A highly diastereoselective "super silyl" governed aldol reaction: synthesis of α,β-dioxyaldehydes and 1,2,3-triols. Chem Sci 2015; 7:394-399. [PMID: 29861990 PMCID: PMC5952264 DOI: 10.1039/c5sc03307a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 10/05/2015] [Indexed: 01/17/2023] Open
Abstract
“Super silyl” governed diastereoselective Mukaiyama aldol reaction for the construction of protected α,β-dioxyaldehydes and 1,2,3-triols via Lewis acid catalysis.
A highly diastereoselective approach for the synthesis of protected α,β-dioxyaldehydes derived from (Z)-tris(trimethylsilyl)silyl “super silyl” enol ethers is described. A general and highly syn-stereoselective aldol reaction directed by the “super silyl” group catalyzed by triflimide (HNTf2) is developed providing α,β-dioxyaldehydes and 1,2,3-triol fragments which can be a useful platform for the elaboration of natural and unnatural sugar derivatives.
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Affiliation(s)
- Wafa Gati
- Molecular Catalyst Research Center , Chubu University , 1200 Matsumoto-cho , Kasugai , Aichi 487-8501 , Japan . ;
| | - Hisashi Yamamoto
- Molecular Catalyst Research Center , Chubu University , 1200 Matsumoto-cho , Kasugai , Aichi 487-8501 , Japan . ;
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One-pot sequential azide–alkyne/intramolecular azomethine ylide 1,3-dipolar cycloaddition strategy for the synthesis of carbohydrate grafted macrocycles. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Abstract
This review of simple indolizidine and quinolizidine alkaloids (i.e., those in which the parent bicyclic systems are in general not embedded in polycyclic arrays) is an update of the previous coverage in Volume 55 of this series (2001). The present survey covers the literature from mid-1999 to the end of 2013; and in addition to aspects of the isolation, characterization, and biological activity of the alkaloids, much emphasis is placed on their total synthesis. A brief introduction to the topic is followed by an overview of relevant alkaloids from fungal and microbial sources, among them slaframine, cyclizidine, Steptomyces metabolites, and the pantocins. The important iminosugar alkaloids lentiginosine, steviamine, swainsonine, castanospermine, and related hydroxyindolizidines are dealt with in the subsequent section. The fourth and fifth sections cover metabolites from terrestrial plants. Pertinent plant alkaloids bearing alkyl, functionalized alkyl or alkenyl substituents include dendroprimine, anibamine, simple alkaloids belonging to the genera Prosopis, Elaeocarpus, Lycopodium, and Poranthera, and bicyclic alkaloids of the lupin family. Plant alkaloids bearing aryl or heteroaryl substituents include ipalbidine and analogs, secophenanthroindolizidine and secophenanthroquinolizidine alkaloids (among them septicine, julandine, and analogs), ficuseptine, lasubines, and other simple quinolizidines of the Lythraceae, the simple furyl-substituted Nuphar alkaloids, and a mixed quinolizidine-quinazoline alkaloid. The penultimate section of the review deals with the sizable group of simple indolizidine and quinolizidine alkaloids isolated from, or detected in, ants, mites, and terrestrial amphibians, and includes an overview of the "dietary hypothesis" for the origin of the amphibian metabolites. The final section surveys relevant alkaloids from marine sources, and includes clathryimines and analogs, stellettamides, the clavepictines and pictamine, and bis(quinolizidine) alkaloids.
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Markad PR, Rohokale RS, Pawar NJ, Dhavale DD. d-Glucose based synthesis of proline–serine C–C linked central and right hand core of a kaitocephalin-a glutamate receptor antagonist. RSC Adv 2015. [DOI: 10.1039/c5ra17442b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of the proline–serine core of kaitocephalin starting from d-glucose, utilizing the Jocic–Reeve and Corey–Link reaction sequence as key steps.
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Affiliation(s)
- Pramod R. Markad
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (Formerly University of Pune)
- Pune-411007
- India
| | - Rajendra S. Rohokale
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (Formerly University of Pune)
- Pune-411007
- India
| | - Nitin J. Pawar
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (Formerly University of Pune)
- Pune-411007
- India
| | - Dilip D. Dhavale
- Department of Chemistry
- Garware Research Centre
- Savitribai Phule Pune University (Formerly University of Pune)
- Pune-411007
- India
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Rohokale RS, Dhavale DD. Synthesis of (2S,3R)-3-amino-2-hydroxydecanoic acid and its enantiomer: a non-proteinogenic amino acid segment of the linear pentapeptide microginin. Beilstein J Org Chem 2014; 10:667-71. [PMID: 24778718 PMCID: PMC3999816 DOI: 10.3762/bjoc.10.59] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 02/10/2014] [Indexed: 11/23/2022] Open
Abstract
A directed manipulation of the functional groups at C3 and C4 of D-glucose was demonstrated to synthesize naturally occurring (2S,3R)-α-hydroxy-β-aminodecanoic acid (AHDA, 2a) and its enantiomer 2b. The enantiomer of 2a is the N-terminal part of the natural linear pentapeptide microginin, which is used as an antihypertensive agent.
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Affiliation(s)
- Rajendra S Rohokale
- Department of Chemistry, Garware Research Centre, University of Pune, Pune - 411 007, India
| | - Dilip D Dhavale
- Department of Chemistry, Garware Research Centre, University of Pune, Pune - 411 007, India
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Abstract
Our work on the application of the boronic acid Mannich reaction to the synthesis of pyrrolizidine alkaloids is described.
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Wang B, Zhang PP. Unexpected highly diastereoconvergent Grignard additions to d-xylofuranose-derived t-butanesulfinyl aldimines. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mane RS, Ghosh S, Singh S, Chopade BA, Dhavale DD. Synthesis of anomeric 1,5-anhydrosugars as conformationally locked selective α-mannosidase inhibitors. Bioorg Med Chem 2011; 19:6720-5. [DOI: 10.1016/j.bmc.2011.09.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 09/23/2011] [Accepted: 09/24/2011] [Indexed: 10/17/2022]
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Pal TK, Dey S, Pathak T. A General Route to Mono- and Disubstituted Divinyl Sulfones: Acyclic Michael Acceptors for the Synthesis of Polyfunctionalized Cyclic Sulfones. J Org Chem 2011; 76:3034-41. [DOI: 10.1021/jo101877r] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tarun Kumar Pal
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
| | - Santu Dey
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
| | - Tanmaya Pathak
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
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Lahiri R, Kokatla HP, Vankar YD. An improved method of ring closing metathesis in the presence of basic amines: application to the formal synthesis of (+)-lentiginosine and other piperidines and carbamino sugar analogs. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.12.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Sanap SP, Ghosh S, Jabgunde AM, Pinjari RV, Gejji SP, Singh S, Chopade BA, Dhavale DD. Synthesis, computational study and glycosidase inhibitory activity of polyhydroxylated conidine alkaloids--a bicyclic iminosugar. Org Biomol Chem 2010; 8:3307-15. [PMID: 20517582 DOI: 10.1039/c004690f] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New bicyclic conidine iminosugars 1d and 1e were synthesized from D-glucose. Thus, D-glucose was converted to sugar beta-amino acids 3a and 3b in good yields. Individual treatment of 3a/3b with the Mukaiyama reagent afforded sugar beta-lactams 4a/4b that on reduction with LiAlH(4)/AlCl(3) gave azetidines 5a/5b with a sugar appendage. Reductive aminocyclization of sugar azetidines 5a/5b afforded the corresponding conidine iminosugars 1d/1e. Based on the (1)H NMR and DFT calculation studies the conformation of 1d was assigned as half chair A2 and that of 1e as a boat B2. The glycosidase inhibitory activities of 1d and 1e such as alpha-mannosidase, alpha-glucosidase and alpha-galactosidase were studied. The alpha-amylase activity was compared with acarbose. Compound 1d was found to be a moderate inhibitor of glycosidases while 1e was noticed to be a good inhibitor of alpha-mannosidase and a moderate inhibitor of other glycosidases. These results were substantiated by molecular docking studies using WHAT IF software and the AUTODOCK 3.0 program.
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Affiliation(s)
- Shrihari P Sanap
- Garware Research Centre, Department of Chemistry, University of Pune, Pune-411007, India
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Stocker BL, Dangerfield EM, Win‐Mason AL, Haslett GW, Timmer MSM. Recent Developments in the Synthesis of Pyrrolidine‐Containing Iminosugars. European J Org Chem 2010. [DOI: 10.1002/ejoc.200901320] [Citation(s) in RCA: 153] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bridget L. Stocker
- Malaghan Institute of Medical Research, P. O. Box 7060, Wellington, New Zealand
| | - Emma M. Dangerfield
- Malaghan Institute of Medical Research, P. O. Box 7060, Wellington, New Zealand
- School of Chemical and Physical Sciences, Victoria University of Wellington, P. O. Box 600, Wellington, New Zealand, Fax: +64‐4‐463‐5241
| | - Anna L. Win‐Mason
- Malaghan Institute of Medical Research, P. O. Box 7060, Wellington, New Zealand
- School of Chemical and Physical Sciences, Victoria University of Wellington, P. O. Box 600, Wellington, New Zealand, Fax: +64‐4‐463‐5241
| | - Gregory W. Haslett
- Malaghan Institute of Medical Research, P. O. Box 7060, Wellington, New Zealand
- School of Chemical and Physical Sciences, Victoria University of Wellington, P. O. Box 600, Wellington, New Zealand, Fax: +64‐4‐463‐5241
| | - Mattie S. M. Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, P. O. Box 600, Wellington, New Zealand, Fax: +64‐4‐463‐5241
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Parmeggiani C, Martella D, Cardona F, Goti A. Total synthesis of (-)-uniflorine A. JOURNAL OF NATURAL PRODUCTS 2009; 72:2058-2060. [PMID: 19835391 DOI: 10.1021/np900435d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Total synthesis of (-)-uniflorine A (3) has been accomplished in nine steps and 11% overall yield from carbohydrate-based nitrone 5. The key steps of the synthetic strategy were a high regio- and complete stereoselective 1,3-dipolar cycloaddition of alkene 6 with nitrone 5, a Tamao-Fleming reaction for replacing the silicon substituent with a hydroxy group with retention of configuration, and a Mitsunobu reaction to establish the correct configuration of the target molecule at C-6.
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Affiliation(s)
- Camilla Parmeggiani
- Dipartimento di Chimica Organica Ugo Schiff, Laboratorio di Progettazione, Sintesi e Studio di Eterocicli Biologicamente Attivi (HeteroBioLab), Università di Firenze, via della Lastruccia 13, I-50019 Sesto Fiorentino (FI), Italy
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Jadhav VH, Bande OP, Pinjari RV, Gejji SP, Puranik VG, Dhavale DD. Synthesis and Conformational Study of Chiral Oxepines: The Baylis−Hillman Reaction and RCM Approach with Sugar Aldehyde. J Org Chem 2009; 74:6486-94. [DOI: 10.1021/jo900660q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | | | | | - Vedavati G. Puranik
- Center for Materials Characterization, National Chemical Laboratory, Pune-411 008, India
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Lo Re D, Franco F, Sánchez-Cantalejo F, Tamayo JA. Total Synthesis of 3-O-Benzyl-1,3,5-tri-epi-calystegine B2 from L-Sorbose. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801232] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Li X, Zhu Z, Duan K, Chen H, Li Z, Li Z, Zhang P. Efficient and structurally controlled synthesis of novel polyhydroxylated indolizidine derivatives with an amino group. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.01.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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C. Majumdar K, Muhuri S, Ul Islam R, Chattopadhyay B. Synthesis of Five- and Six-Membered Heterocyclic Compounds by the Application of the Metathesis Reactions. HETEROCYCLES 2009. [DOI: 10.3987/rev-08-646] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Lamberto M, Kilburn JD. Synthesis of indolizidines from dialkylated isocyanides: a novel radical cyclisation/N-alkylation/ring closing metathesis approach. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.08.088] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ritthiwigrom T, Pyne SG. Synthesis of (+)-Uniflorine A: A Structural Reassignment and a Configurational Assignment. Org Lett 2008; 10:2769-71. [DOI: 10.1021/ol8009144] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thunwadee Ritthiwigrom
- School of Chemistry, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Stephen G. Pyne
- School of Chemistry, University of Wollongong, Wollongong, New South Wales 2522, Australia
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Davis AS, Ritthiwigrom T, Pyne SG. Synthetic and spectroscopic studies on the structures of uniflorines A and B: structural revision to 1,2,6,7-tetrahydroxy-3-hydroxymethylpyrrolizidine alkaloids. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.110] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kalamkar NB, Kasture VM, Dhavale DD. Chiron Approach to the Synthesis of (2S,3R)-3-Hydroxypipecolic Acid and (2R,3R)-3-Hydroxy-2-hydroxymethylpiperidine from d-Glucose. J Org Chem 2008; 73:3619-22. [DOI: 10.1021/jo702749r] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Navnath B. Kalamkar
- Department of Chemistry, Garware Research Centre, University of Pune, Pune - 411 007, India
| | - Vijay M. Kasture
- Department of Chemistry, Garware Research Centre, University of Pune, Pune - 411 007, India
| | - Dilip D. Dhavale
- Department of Chemistry, Garware Research Centre, University of Pune, Pune - 411 007, India
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Abstract
We have demonstrated that the borono-Mannich reaction is a versatile and efficient reaction for the diastereoselective preparation of chiral 1,2-amino alcohols. These Mannich products are valuable starting materials as shown in this report by the synthesis of bioactive polyhydroxylated pyrrolizidine and indolizidine alkaloids. Initial studies, directed at the more complex Stemona alkaloids and using the borono-Mannich reaction on cyclic N-acyliminium ions, are encouraging, as demonstrated by the synthesis of the pyrido[1,2-a]azepine core structure of stemocurtisinol.
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Håkansson AE, van Ameijde J, Horne G, Nash RJ, Wormald MR, Kato A, Besra GS, Gurcha S, Fleet GW. Synthesis of the naringinase inhibitors l-swainsonine and related 6-C-methyl-l-swainsonine analogues: (6R)-C-methyl-l-swainsonine is a more potent inhibitor of l-rhamnosidase by an order of magnitude than l-swainsonine. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.10.142] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ajish Kumar KS, Chaudhari VD, Dhavale DD. Efficient synthesis of (+)-1,8,8a-tri-epi-swainsonine, (+)-1,2-di-epi-lentiginosine, (+)-9a-epi-homocastanospermine and (−)-9-deoxy-9a-epi-homocastanospermine from a d-glucose-derived aziridine carboxylate, and study of their glycosidase inhibitory activities. Org Biomol Chem 2008; 6:703-11. [DOI: 10.1039/b712753g] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bonanni M, Marradi M, Cardona F, Cicchi S, Goti A. Synthesis of densely functionalized enantiopure indolizidines by ring-closing metathesis (RCM) of hydroxylamines from carbohydrate-derived nitrones. Beilstein J Org Chem 2007; 3:44. [PMID: 18076753 PMCID: PMC2151072 DOI: 10.1186/1860-5397-3-44] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 12/12/2007] [Indexed: 11/13/2022] Open
Abstract
Background Indolizidine alkaloids widely occur in nature and display interesting biological activity. This is the reason for which their total synthesis as well as the synthesis of non-natural analogues still attracts the attention of many research groups. To establish new straightforward accesses to these molecules is therefore highly desirable. Results The ring closing metathesis (RCM) of enantiopure hydroxylamines bearing suitable unsaturated groups cleanly afforded piperidine derivatives in good yields. Further cyclization and deprotection of the hydroxy groups gave novel highly functionalized indolizidines. The synthesis of a pyrroloazepine analogue is also described. Conclusion We have developed a new straightforward methodology for the synthesis of densely functionalized indolizidines and pyrroloazepine analogues in 6 steps and 30–60% overall yields from enantiopure hydroxylamines obtained straightforwardly from carbohydrate-derived nitrones.
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Affiliation(s)
- Marco Bonanni
- Dipartimento di Chimica Organica "Ugo Schiff", Laboratorio di Progettazione, Sintesi e Studio di Eterocicli Biologicamente Attivi (HeteroBioLab), Università di Firenze, via della Lastruccia 13, I-50019 Sesto Fiorentino (Firenze), Italy.
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Intra-molecular nitrone–olefin cycloaddition of d-glucose derived allylic alcohol: synthesis of new aminocyclohexitols. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.09.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ajish Kumar KS, Chaudhari VD, Puranik VG, Dhavale DD. Synthesis and Glycosidase Inhibitory Studies of Pentahydroxyindolizidines:D-Glucose-Derived Aziridine-2-carboxylate Approach. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700461] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Compain P. Olefin Metathesis of Amine-Containing Systems: Beyond the Current Consensus. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200700161] [Citation(s) in RCA: 144] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bande OP, Jadhav VH, Puranik VG, Dhavale DD. 1,3-Dipolar cycloaddition reaction of a d-galactose derived nitrone with allyl alcohol: synthesis of polyhydroxylated perhydroazaazulene alkaloids. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.05.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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