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Maity PK, Tunge JA. Assisted Tandem Catalytic Conversion of Acrylates into Adipic Esters. ChemCatChem 2018. [DOI: 10.1002/cctc.201800525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pradip K. Maity
- Department of Chemistry University of Kansas 1251 Wescoe Hall Drive Lawrence, Kansas USA
| | - Jon A. Tunge
- Department of Chemistry University of Kansas 1251 Wescoe Hall Drive Lawrence, Kansas USA
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2
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Hügel HM, Smith AT, Rizzacasa MA. Macrolactam analogues of macrolide natural products. Org Biomol Chem 2016; 14:11301-11316. [DOI: 10.1039/c6ob02149b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The chemical modification of macrolide natural products into aza- or lactam analogues is a strategy employed to improve their metabolic stability and biological activity.
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Affiliation(s)
- Helmut M. Hügel
- School of Science & Biomedical and Health Innovations Enabling Capability Platform
- RMIT University
- Melbourne
- Australia
| | - Andrew T. Smith
- Griffith Sciences
- Gold Coast campus
- Griffith University
- Australia
| | - Mark A. Rizzacasa
- School of Chemistry
- the Bio21 Institute
- The University of Melbourne
- Australia
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Wahyu Lestari W, Zaake-Hertling H, Lönnecke P, Hey-Hawkins E. 4, 4′- and 5, 5′-Functionalized (S)- and (R)-2, 2′-Bis(diphenylphosphanyl)-1, 1′-binaphthyl Oxide Derivatives. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300278] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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4
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Noyori R. Facts are the Enemy of Truth-Reflections on Serendipitous Discovery and Unforeseen Developments in Asymmetric Catalysis. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201205537] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Noyori R. Fakten sind der Feind der Wahrheit - Betrachtungen über Zufallsentdeckungen und ungeahnte Entwicklungen der asymmetrischen Katalyse. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205537] [Citation(s) in RCA: 14] [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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6
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Stereoselective hydrogenation of methyl acetoacetate over structurally different chiral ruthenium complexes. REACTION KINETICS MECHANISMS AND CATALYSIS 2010. [DOI: 10.1007/s11144-010-0256-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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7
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Grandbois A, Mayer MÈ, Bédard M, Collins S, Michel T. Synthesis ofC1-Symmetric BINOLs Employing N-Heterocyclic Carbene-Copper Complexes. Chemistry 2009; 15:9655-9. [DOI: 10.1002/chem.200901295] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Guo QX, Wu ZJ, Luo ZB, Liu QZ, Ye JL, Luo SW, Cun LF, Gong LZ. Highly enantioselective oxidative couplings of 2-naphthols catalyzed by chiral bimetallic oxovanadium complexes with either oxygen or air as oxidant. J Am Chem Soc 2007; 129:13927-38. [PMID: 17956093 DOI: 10.1021/ja074322f] [Citation(s) in RCA: 232] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The chiral bimetallic oxovanadium complexes have been designed for the enantioselective oxidative coupling of 2-naphthols bearing various substituents at C6 and/or C7. The chirality transferring from the amino acid to the axis of the biphenyl in oxovanadium complexes 2 was found to occur with the use of UV and CD spectra and DFT calculation. The homo-coupling reaction with oxygen as the oxidant was promoted by 5 mol % of an oxovanadium complex derived from L-isoleucine and achiral biphenol to afford binaphthols in nearly quantitative yields with high enantioselectivities of up to 98% ee. An oxovanadium complex derived from L-isoleucine and H8-binaphthol is highly efficient at catalyzing the air-oxidized coupling of 2-naphthols with excellent enantioselectivities of up to 97% ee. 51V NMR study shows that the oxovanadium complexes have two vanadium(V) species. Kinetic studies, the cross-coupling reaction, and HRMS spectral studies on the reaction have been carried out and illustrate that two vanadium(V) species are both involved in catalysis and that the coupling reaction undergoes a radical-radical mechanism in an intramolecular manner. Quantum mechanical calculations rationalize the importance of the cooperative effects of the axial chirality matching S-amino acids on the stereocontrol of the oxidative coupling reaction. The application of the transformation in the preparation of chiral ligands and conjugated polymers confirms the importance of the current process in organic synthesis.
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Affiliation(s)
- Qi-Xiang Guo
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
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Alame M, Jahjah M, Berthod M, Lemaire M, Meille V, de Bellefon C. New 5,5′-disubstituted BINAP derivatives: Syntheses and pressure and electronic effects in Rh asymmetric hydrogenation. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.12.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Bosse K, Marineau J, Nason DM, Fliri AJ, Segelstein BE, Desai K, Volkmann RA. Expanding the medicinal chemistry toolbox: stereospecific generation of methyl group-containing propylene linkers. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Koy C, Michalik M, Oehme G, Fischer C, Tillack A, Baudisch H, Kempe R. SYNTHESIS OF NEW ALKYL DERIVATIVES OF 2,2′-DIHYDROXY-1,1′-BINAPHTHYL. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426509908031631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Cornelia Koy
- a Institut für Organische Katalyseforschung an der Universität Rostock e. V , Buchbinderstr. 5/6, D-18055, Rostock, Germany
| | - Manfred Michalik
- a Institut für Organische Katalyseforschung an der Universität Rostock e. V , Buchbinderstr. 5/6, D-18055, Rostock, Germany
| | - Günther Oehme
- a Institut für Organische Katalyseforschung an der Universität Rostock e. V , Buchbinderstr. 5/6, D-18055, Rostock, Germany
| | - Christine Fischer
- a Institut für Organische Katalyseforschung an der Universität Rostock e. V , Buchbinderstr. 5/6, D-18055, Rostock, Germany
| | - Annegret Tillack
- a Institut für Organische Katalyseforschung an der Universität Rostock e. V , Buchbinderstr. 5/6, D-18055, Rostock, Germany
| | - Hannelore Baudisch
- a Institut für Organische Katalyseforschung an der Universität Rostock e. V , Buchbinderstr. 5/6, D-18055, Rostock, Germany
| | - Rhett Kempe
- a Institut für Organische Katalyseforschung an der Universität Rostock e. V , Buchbinderstr. 5/6, D-18055, Rostock, Germany
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Daley CJ, Wiles JA, Bergens SH. Substrate effects on the mechanism of enantioselective hydrogenation using ruthenium bis(phosphine) complexes as catalyst: A mechanistic investigation of the hydrogenation of α,β-unsaturated acids and esters based on deuterium labeling studies. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.10.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Matsushita M, Kamata K, Yamaguchi K, Mizuno N. Heterogeneously catalyzed aerobic oxidative biaryl coupling of 2-naphthols and substituted phenols in water. J Am Chem Soc 2005; 127:6632-40. [PMID: 15869284 DOI: 10.1021/ja050436k] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The oxidative coupling reaction can efficiently be promoted by supported ruthenium catalyst Ru(OH)x/Al2O3. A variety of 2-naphthols and substituted phenols can be converted to the corresponding biaryl compounds in moderate to excellent yields using molecular oxygen as a sole oxidant in water without any additives. The catalysis is truly heterogeneous in nature, and Ru(OH)x/Al2O3 can easily be recovered after the reaction. The catalyst can be recycled seven times with the maintenance of the catalytic performance, and the total turnover number reaches up to 160. The results of competitive coupling reactions suggest that the present oxidative biaryl coupling reaction proceeds via the homolytic coupling of two radical species and the Ru(OH)x/Al2O3 catalyst acts as an one-electron oxidant. Two radical species are coupled to give the corresponding biaryl product, and the one-electron reduced catalyst is reoxidized by molecular oxygen. The amounts of O(2) uptake and H(2)O formation were almost one-quarter and one-half the amount of substrate consumed, respectively, supporting the reaction mechanism. The kinetic data and kinetic isotope effect show that the reoxidation of the reduced catalyst is the rate-limiting step for the coupling reaction.
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Affiliation(s)
- Mitsunori Matsushita
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Liu D, Zhang X. Practical P-Chiral Phosphane Ligand for Rh-Catalyzed Asymmetric Hydrogenation. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400690] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Rojo I, Teixidor F, Viñas C, Kivekäs R, Sillanpää R. Synthesis and Coordinating Ability of an Anionic Cobaltabisdicarbollide Ligand Geometrically Analogous to BINAP. Chemistry 2004; 10:5376-85. [PMID: 15378730 DOI: 10.1002/chem.200400361] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The anionic chelating ligand [1,1'-(PPh2)2-3,3'-Co(1,2-C2B9H10)2]- has been synthesized from [3,3'-Co(1,2-C2B9H11)2]- in very good yield in a one-pot process with an easy work-up procedure. The coordinating ability of this ligand has been studied with Group 11 metal ions (Ag, Au) and with transition-metal ions (Pd, Rh). The two dicarbollide halves of the [1,1'-(PPh2)2-3,3'-Co(1,2-C2B9H10)2]- ligand can swing about one axis in a manner analogous to the constituent parts of BINAP and ferrocenyl phosphine derivatives. All these ligands function as hinges, with the most important property in relation to the coordination requirements of the metal being the PP distance. [1,1'-(PPh2)2-3,3'-Co(1,2-C2B9H10)2]-, BINAP, ferrocenyl phosphine derivatives, and other hinge ligands present a range of different PP separations, and consequently different coordination spheres and dispositions around metal cations. To account for these differences, the equation Dphi2 = D02 + 4 R2cos2(90-phi/2) has been developed. It relates the PP distance (Dphi) in a complex with the minimum PP distance (D0) that is characteristic of the hinge-type ligand.
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Affiliation(s)
- Isabel Rojo
- Institut de Ciència de Materials de Barcelona (C.S.I.C.), Campus de la U.A.B. 08193 Bellaterra, Spain
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Wiles JA, Daley CJA, Hamilton RJ, Leong CG, Bergens SH. An Alternate Route to the Active Chiral Hydrogenation Catalysts [Ru(bisphosphine)(H)(solvent)3]+: Synthesis, Characterization, and Catalytic Evaluation. Organometallics 2004. [DOI: 10.1021/om049740x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jason A. Wiles
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | | | - Robin J. Hamilton
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Carolyn G. Leong
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Steven H. Bergens
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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Reactions of alkylalane diolates with water synthesis, characterisation and ε-caprolactone polymerisation activity of novel alane benzopinacolates. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.05.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Fu Y, Guo XX, Zhu SF, Hu AG, Xie JH, Zhou QL. Rhodium-Catalyzed Asymmetric Hydrogenation of Functionalized Olefins Using Monodentate Spiro Phosphoramidite Ligands. J Org Chem 2004; 69:4648-55. [PMID: 15230585 DOI: 10.1021/jo049655z] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Novel chiral monodentate phosphorus ligands, SIPHOS, were conveniently synthesized from 1,1'-spirobiindane-7,7'-diol. The Rh complexes of SIPHOS can catalyze the hydrogenation of alpha-dehydroamino esters in mild conditions, providing alpha-amino acid derivatives in up to 99% ee. Enamides and beta-dehydroamino esters can also be hydrogenated in good to excellent enantioselectivities (up to 99% and 94% ee, respectively). The SIPHOS ligand with smaller alkyl groups on the N-atom afforded higher enantioselectivity. The X-ray analysis of single crystal showed that the structure of Rh/SIPHOS catalyst is [Rh(COD)((S)-SIPHOS-Me)(2)](+), which clarified the configuration of the catalyst with the monodentate chiral phosphorus ligand in Rh-catalyzed asymmetric hydrogenation. A positive nonlinear effect in the relationship of the optical purities of ligand and product was observed in the hydrogenation of dehydroamino acid derivatives. The kinetic study of hydrogenation showed that the reaction is zero order in the concentration of substrate and first order in the concentration of Rh catalyst and the hydrogenation pressure. The rate of hydrogenation decreased when the Rh/L ratio changed from 1:1 to 1:4.
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Affiliation(s)
- Yu Fu
- State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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Hersh WH, Xu P, Simpson CK, Grob J, Bickford B, Hamdani MS, Wood T, Rheingold AL. Synthesis and Structural Characterization of Trivalent Amino Acid Derived Chiral Phosphorus Compounds. J Org Chem 2004; 69:2153-63. [PMID: 15058965 DOI: 10.1021/jo035508+] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of the N-toluenesulfonyl derivatives of (S)-alanine, phenylalanine, and valine (4-6) with PhPCl(2) gave in high yield the 4-methyl, benzyl, and isopropyl derivatives (7-9) of 2-phenyl-1-p-toluenesulfonyl-1,3,2-oxazaphospholidin-5-one. The ratios of the (2S,4S)/(2R,4S) diastereomers (cis/trans isomers) were 1:1, 2:1, and 10:1 for the methyl, benzyl, and isopropyl derivatives 7a,b, 8a,b, and 9a,b, respectively. For 7a,b, both isomers could be crystallized, but for the others only the major isomers were isolable. The X-ray crystal structure of 9a shows that the isopropyl and phenyl groups are mutually cis and that the tolyl moiety is oriented s-trans to both the isopropyl and phenyl groups. Reaction of 6 with Cl(2)PCH(2)CH(2)PCl(2) (10) gave a 56:38:7 mixture of the cis/cis, cis/trans, and trans/trans diphosphorus heterocycles 11a-c. The major isomer could be crystallized and isolated free of the other diastereomers. Reaction of 6 with EtPCl(2) gave a 6:1 mixture of cis/trans isomers of the ethyl-substituted heterocycles 12a,b as an inseparable oil but allowed confirmation of the structure of 11a. Slow epimerization at phosphorus may occur by inversion but more likely by ring opening/closure, since 7b, 9a, and 11a give rise upon standing in solution to mixtures containing starting material and 7a, 9b, and 11b, respectively, along with the free amino acid derivatives 4 and 6. The NMR spectra, and in particular the coupling constants between the alpha-hydrogen atom of the amino acid moiety and phosphorus, were used to establish the identities of the cis and trans isomers. Reaction of 9a with (THF)W(CO)(5) gave the phosphorus-ligated adduct (9a)W(CO)(5) (13), and the IR spectrum of this complex shows that 9a is a strongly electron-withdrawing ligand. The geometry of the sulfonamide moiety is discussed in detail, as are the (1)H NMR coupling constants. The data are consistent with the presence of little steric interaction between the cis isopropyl and phosphorus substituent in 9a, 11a, and 12a and orientation of the tolyl moiety s-cis to the isopropyl group in 9b, 12b, and 13.
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Affiliation(s)
- William H Hersh
- Department of Chemistry and Biochemistry, Queens College and the Graduate Center of the City University of New York, Flushing, NY 11367-1597, USA.
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Tang W, Zhang X. New chiral phosphorus ligands for enantioselective hydrogenation. Chem Rev 2003; 103:3029-70. [PMID: 12914491 DOI: 10.1021/cr020049i] [Citation(s) in RCA: 1938] [Impact Index Per Article: 92.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenjun Tang
- Department of Chemistry, 152 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Duprat de Paule S, Jeulin S, Ratovelomanana-Vidal V, Genêt JP, Champion N, Deschaux G, Dellis P. SYNPHOS: a New Atropisomeric Diphosphine Ligand. From Laboratory-scale Synthesis to Scale-up Development. Org Process Res Dev 2003. [DOI: 10.1021/op034016w] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sébastien Duprat de Paule
- Laboratoire de Synthèse Sélective Organique et Produits Naturels, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and SYNKEM S.A.S., 47 rue de Longvic, 21301 Chenôve Cedex, France
| | - Séverine Jeulin
- Laboratoire de Synthèse Sélective Organique et Produits Naturels, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and SYNKEM S.A.S., 47 rue de Longvic, 21301 Chenôve Cedex, France
| | - Virginie Ratovelomanana-Vidal
- Laboratoire de Synthèse Sélective Organique et Produits Naturels, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and SYNKEM S.A.S., 47 rue de Longvic, 21301 Chenôve Cedex, France
| | - Jean-Pierre Genêt
- Laboratoire de Synthèse Sélective Organique et Produits Naturels, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and SYNKEM S.A.S., 47 rue de Longvic, 21301 Chenôve Cedex, France
| | - Nicolas Champion
- Laboratoire de Synthèse Sélective Organique et Produits Naturels, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and SYNKEM S.A.S., 47 rue de Longvic, 21301 Chenôve Cedex, France
| | - Gilles Deschaux
- Laboratoire de Synthèse Sélective Organique et Produits Naturels, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and SYNKEM S.A.S., 47 rue de Longvic, 21301 Chenôve Cedex, France
| | - Philippe Dellis
- Laboratoire de Synthèse Sélective Organique et Produits Naturels, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and SYNKEM S.A.S., 47 rue de Longvic, 21301 Chenôve Cedex, France
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Asymmetric catalysis by 1,1′-binaphthyl compounds with conformation-defined 3,3′-aryl substituents. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00967-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Diastereocontrolled synthesis of an enantiopure 4,4-disubstituted cyclohex-2-en-ol: a new route to (+)-quebrachamine. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(01)02075-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Stachel SJ, Lee CB, Spassova M, Chappell MD, Bornmann WG, Danishefsky SJ, Chou TC, Guan Y. On the interactivity of complex synthesis and tumor pharmacology in the drug discovery process: total synthesis and comparative in vivo evaluations of the 15-aza epothilones. J Org Chem 2001; 66:4369-78. [PMID: 11397179 DOI: 10.1021/jo010275c] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The total syntheses of 12,13,15-desoxy-15(S)-aza-epothilone B (aza-dEpoB; dEpoB-lactam) and 12,13,15-desoxy-15(R)-aza-epothilone B (15-epi-aza-dEpoB; 15-epi-dEpoB-lactam) have been accomplished via a highly convergent strategy. We have also successfully oxidized 12,13,15-desoxy-15(S)-aza-epothilone B to aza-epothilone B (aza-EpoB; EpoB-lactam). Aza-epothilone B has been advanced to phase I clinical trials by the Bristol-Myers Squibb group. Our synthesis is efficient and was amenable to the production of significant quantities of these lactams. Using our fully synthetically derived lactams, in vitro and in vivo studies were conducted in comparison with advanced clinical candidates, 12,13-desoxyepothilone B and 12,13-desoxyepothilone F, also derived by total synthesis.
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Affiliation(s)
- S J Stachel
- Laboratories for Bioorganic Chemistry, Preclinical Pharmacology, and the Preparative Synthesis Core Facility, The Sloan-Kettering Institute for Cancer, Research, 1275 York Avenue, New York, New York 10021, USA
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Lee CB, Wu Z, Zhang F, Chappell MD, Stachel SJ, Chou TC, Guan Y, Danishefsky SJ. Insights into long-range structural effects on the stereochemistry of aldol condensations: a practical total synthesis of desoxyepothilone F. J Am Chem Soc 2001; 123:5249-59. [PMID: 11457387 DOI: 10.1021/ja010039j] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A processable total synthesis of a potent antitumor agent, desoxyepothilone F (dEpoF, 21-hydroxy-12,13-desoxyepothilone B, 21-hydroxyepothilone D), has been accomplished. The route is highly convergent. The new technology has also been applied to a total synthesis of 12,13-desoxyepothilone (dEpoB). The crucial point of departure from previous syntheses of dEpoB and dEpoF involves presentation of the C1-C11 sector for Suzuki coupling with C3 in reduced form. Hitherto, the required S stereochemistry at C3 had been implemented via reduction of a keto function after Suzuki coupling. Whereas that chemistry worked quite well in a synthesis of dEpoB, it was not transferable to a high-yielding synthesis of dEpoF. The reduction of the keto group at C3 via a Noyori protocol after Suzuki coupling had proved to be very difficult. In our current approach, two consecutive aldol reactions are used to fashion the acyl sector. In the first aldol condensation, C6 becomes attached to C7. Following protection at C7, a two-carbon acetate equivalent is used to join C2 and C3 with very high asymmetric induction at C3. Only after this center has been implemented is the Suzuki reaction conducted. This major advance allowed us to synthesize dEpoF in a straightforward fashion. These findings found ready application in the total synthesis of dEpoB. Another part of the study involved analysis of the factors associated with aldol condensations joining C6 to C7. In the work described herein, the consequences of the status of C3 in promoting the C6-C7 aldol coupling are probed in detail. Dramatic stereochemical long-range effects uncovered during the study are described, and a working model to explain these effects has emerged.
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Affiliation(s)
- C B Lee
- Contribution from The Laboratories for Bioorganic Chemistry, and Preclinical Pharmacology, The Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, USA
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Noyori R, Ohkuma T. Asymmetrische Katalyse mit hinsichtlich Struktur und Funktion gezielt entworfenen Molekülen: die chemo- und stereoselektive Hydrierung von Ketonen. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20010105)113:1<40::aid-ange40>3.0.co;2-k] [Citation(s) in RCA: 359] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Noyori R, Ohkuma T. Asymmetric Catalysis by Architectural and Functional Molecular Engineering: Practical Chemo- and Stereoselective Hydrogenation of Ketones. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3773(20010105)40:1%3c40::aid-anie40%3e3.0.co%3b2-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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31
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Noyori R, Ohkuma T. Asymmetric Catalysis by Architectural and Functional Molecular Engineering: Practical Chemo- and Stereoselective Hydrogenation of Ketones. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3773(20010105)40:1<40::aid-anie40>3.0.co;2-5] [Citation(s) in RCA: 1570] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Mosquera MEG, Ruiz J, Riera V, Garcia-Granda S, Salvadó MA. Complexes of Ruthenium(II) with Unsymmetrical Diphosphines and Diphosphinomethanides. A Way to Synthesize Chiral Metallodiphosphines. Organometallics 2000. [DOI: 10.1021/om000097y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nifantiev EE, Grachev MK, Burmistrov SY. Amides of trivalent phosphorus acids as phosphorylating reagents for proton-donating nucleophiles. Chem Rev 2000; 100:3755-800. [PMID: 11749327 DOI: 10.1021/cr9601371] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- E E Nifantiev
- V. I. Lenin Moscow State Pedagocical University, Chemistry Department, Nesvizhskii per., 3, 119021 Moscow, Russian Federation
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Lee CB, Chou TC, Zhang XG, Wang ZG, Kuduk SD, Chappell MD, Stachel SJ, Danishefsky SJ. Total synthesis and antitumor activity of 12,13-desoxyepothilone F: an unexpected solvolysis problem at C15, mediated by remote substitution at C21. J Org Chem 2000; 65:6525-33. [PMID: 11052097 DOI: 10.1021/jo000617z] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new epothilone analogue, 12,13-desoxyepothilone F (dEpoF, 21-hydroxy-12,13-desoxyepothilone B, 21-hydroxyepothilone D), was synthesized and evaluated for antitumor potential. A convergent strategy employed for the semipractical synthesis of 12,13-desoxyepothilone B (dEpoB) has been utilized to yield an amount of dEpoF sufficient for relevant biological studies. The results from an in vitro assay reveal that this new analogue is highly active against various tumor cell lines with a potency comparable to that of dEpoB. In particular, the growth of resistant tumor cells is inhibited by dEpoF at concentrations where paclitaxel (Taxol) is basically ineffective. A preliminary assessment of its in vivo activity is also promising. The new analogue, containing an additional hydroxyl group at C21, exhibits advantages over other epothilones in terms of water solubility, and can serve as a readily functionalizable handle to produce other useful compounds for pertinent biological studies.
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Affiliation(s)
- C B Lee
- The Laboratory for Bioorganic Chemistry, The Sloan-Kettering Institute for Cancer Research, New York, New York 10021, USA
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35
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Yu HB, Hu QS, Pu L. The First Optically Active BINOL−BINAP Copolymer Catalyst: Highly Stereoselective Tandem Asymmetric Reactions. J Am Chem Soc 2000. [DOI: 10.1021/ja000778k] [Citation(s) in RCA: 122] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hong-Bin Yu
- Department of Chemistry, University of Virginia Charlottesville, Virginia 22901
| | - Qiao-Sheng Hu
- Department of Chemistry, University of Virginia Charlottesville, Virginia 22901
| | - Lin Pu
- Department of Chemistry, University of Virginia Charlottesville, Virginia 22901
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36
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Chappell MD, Stachel SJ, Lee CB, Danishefsky SJ. En route to a plant scale synthesis of the promising antitumor agent 12,13-desoxyepothilone B. Org Lett 2000; 2:1633-6. [PMID: 10841497 DOI: 10.1021/ol0059302] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction--see text] Efficient and processable syntheses of key building blocks of the antitumor agent 12,13-desoxyepothilone B (dEpoB) by catalytic asymmetric induction are herein described.
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Affiliation(s)
- M D Chappell
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, New York, NY 10021, USA
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37
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Ratovelomanana-Vidal V, Genêt JP. Synthetic applications of the ruthenium-catalyzed hydrogenation via dynamic kinetic resolution. CAN J CHEM 2000. [DOI: 10.1139/v00-071] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This review summarizes some recent work in the field of homogeneous ruthenium-catalyzed hydrogenation via dynamic kinetic resolution. The hydrogenation reaction of various α-substituted β-oxo esters using chiral ruthenium(II) catalysts is presented as well as the synthesis of some key intermediates of pharmaceutical interest.Key words: dynamic kinetic resolution, ruthenium, hydrogenation, α-substituted β-keto ester.
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38
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Stachel SJ, Chappell MD, Lee CB, Danishefsky SJ, Chou TC, He L, Horwitz SB. On the total synthesis and preliminary biological evaluations of 15(R) and 15(S) aza-dEpoB: a Mitsunobu inversion at C15 in pre-epothilone fragments. Org Lett 2000; 2:1637-9. [PMID: 10841498 DOI: 10.1021/ol005932m] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction-see text] The syntheses of two epothilone analogues, 15(S)-aza-12,13-desoxyepothilone B and the epimeric 15(R)-aza-12,13-desoxyepothilone B, are described. A Mitsunobu inversion was utilized for elaboration of pre-epothilone fragments to the corresponding macrolactam. Tubulin binding and cytotoxicity profiles of these analogues are presented.
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Affiliation(s)
- S J Stachel
- Laboratories for Bioorganic Chemistryand Biochemical Pharmacology, Sloan-Kettering Institute for Cancer Research, New York, NY 10021, USA
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39
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Sperrle M, Consiglio G. Palladium-catalyzed enantioselective multiple carbonylation of 1-olefins. Synthesis of optically active 2-oxo-pentanedioates and butanedioates. Inorganica Chim Acta 2000. [DOI: 10.1016/s0020-1693(99)00543-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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40
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Yu HB, Hu QS, Pu L. Synthesis of a rigid and optically active poly(BINAP) and its application in asymmetric catalysis. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(00)00041-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Breeden S, Wills M. ESPHOS and SEMI-ESPHOS: A New Family of Mono- and Bidentate Diazaphospholidine Ligands for Asymmetric Catalysis. J Org Chem 1999. [DOI: 10.1021/jo9912101] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Simon Breeden
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Martin Wills
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
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42
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Danishefsky SJ. Complex Target-Oriented Synthesis in the Drug Discovery Process: A Case History in the dEpoB Series. J Org Chem 1999. [DOI: 10.1021/jo991006d] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Wills M, Gamble M, Palmer M, Smith A, Studley J, Kenny J. Novel catalysts for asymmetric reduction of carbonyl groups. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1169(99)00062-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Harris CR, Kuduk SD, Balog A, Savin K, Glunz PW, Danishefsky SJ. New Chemical Synthesis of the Promising Cancer Chemotherapeutic Agent 12,13-Desoxyepothilone B: Discovery of a Surprising Long-Range Effect on the Diastereoselectivity of an Aldol Condensation. J Am Chem Soc 1999. [DOI: 10.1021/ja991189l] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christina R. Harris
- Contribution from the Laboratory for Bioorganic Chemistry, The Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Scott D. Kuduk
- Contribution from the Laboratory for Bioorganic Chemistry, The Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Aaron Balog
- Contribution from the Laboratory for Bioorganic Chemistry, The Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Ken Savin
- Contribution from the Laboratory for Bioorganic Chemistry, The Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Peter W. Glunz
- Contribution from the Laboratory for Bioorganic Chemistry, The Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
| | - Samuel J. Danishefsky
- Contribution from the Laboratory for Bioorganic Chemistry, The Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10021, and the Department of Chemistry, Columbia University, Havemeyer Hall, New York, New York 10027
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Ratovelomanana-Vidal V, Genêt JP. Enantioselective ruthenium-mediated hydrogenation: developments and applications. J Organomet Chem 1998. [DOI: 10.1016/s0022-328x(98)00680-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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48
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Wiles JA, Bergens SH. Mechanistic Investigations of an Enantioselective Hydrogenation Catalyzed by a Ruthenium−BINAP Complex. 1. Stoichiometric and Catalytic Labeling Studies. Organometallics 1998. [DOI: 10.1021/om980113f] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jason A. Wiles
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2
| | - Steven H. Bergens
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2
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49
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Hersh WH, Xu P, Simpson CK, Wood T, Rheingold AL. A Chiral N-Sulfonylphosphoramide: Synthesis and X-ray Crystal Structure of a 1,3,2-Oxazaphospholidin-5-one, a Trivalent Electron-Withdrawing Amino Acid-Derived Phosphorus Compound, and Synthesis of Its W(CO)(5) Adduct. Inorg Chem 1998; 37:384-385. [PMID: 11670284 DOI: 10.1021/ic9713801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William H. Hersh
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
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50
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Ager DJ, Laneman SA. Reductions of 1,3-dicarbonyl systems with ruthenium-biarylbisphosphine catalysts. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0957-4166(97)00455-2] [Citation(s) in RCA: 122] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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