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Králová P, Soural M. Reagent-Based Diversity-Oriented Synthesis of Triazolo[1,5- a][1,4]diazepine Derivatives from Polymer-Supported Homoazidoalanine. J Org Chem 2021; 86:7963-7974. [PMID: 34060832 DOI: 10.1021/acs.joc.1c00293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, we report the synthesis of skeletally different triazolo[1,5-a][1,4]diazepines starting from immobilized homoazidoalanine. After sulfonylation with 2/4-nitrobenzenesulfonyl chlorides and Mitsunobu alkylation with various alkynols, the corresponding N-substituted nitrobenzenesulfonamides were obtained. Their catalyst-free Huisgen cycloaddition provided immobilized and functionalized triazolo[1,5-a][1,4]diazepines as the key intermediates for further modification. Using the concept of diversity-oriented, reagent-based synthesis, the key intermediates were subsequently converted to heterocycles bearing [5 + 7 + 5], [5 + 7 + 6], and [5 + 7 + 7] scaffolds. Furthermore, the synthesis of spirocyclic triazolodiazepines was developed.
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Affiliation(s)
- Petra Králová
- Department of Organic Chemistry, Faculty of Science, Palacký University, Olomouc 779 00, Czech Republic
| | - Miroslav Soural
- Department of Organic Chemistry, Faculty of Science, Palacký University, Olomouc 779 00, Czech Republic.,Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 5, Olomouc 779 00, Czech Republic
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2
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Kriegelsteinová P, Lemrová B, Ručilová V, Soural M. Copper‐Free Solid‐Phase Synthesis of Triazolo[1,5‐
a
][1,4]diazepin‐6‐ones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Patricia Kriegelsteinová
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
| | - Barbora Lemrová
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
| | - Veronika Ručilová
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
| | - Miroslav Soural
- Department of Organic Chemistry Faculty of Science Palacký University 771 46 Olomouc Czech Republic
- Institute of Molecular and Translational Medicine Faculty of Medicine and Dentistry Palacký University Hněvotínská 5 779 00 Olomouc Czech Republic
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Treitler DS, Marriott AS, Chadwick J, Quirk E. Mutagenic Impurities in 1-Hydroxybenzotriazole (HOBt). Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00376] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel S. Treitler
- Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Andrew S. Marriott
- Bristol-Myers Squibb, Reeds Lane, Moreton, Wirral CH46 1QW, United Kingdom
| | - James Chadwick
- Bristol-Myers Squibb, Reeds Lane, Moreton, Wirral CH46 1QW, United Kingdom
| | - Emma Quirk
- Bristol-Myers Squibb, Reeds Lane, Moreton, Wirral CH46 1QW, United Kingdom
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4
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Goldschmidt Gőz V, Nagy A, Farkas V, Keszei E, Perczel A. Unwanted hydrolysis or α/β-peptide bond formation: how long should the rate-limiting coupling step take? RSC Adv 2019; 9:30720-30728. [PMID: 35529379 PMCID: PMC9072530 DOI: 10.1039/c9ra06124j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/29/2019] [Indexed: 12/30/2022] Open
Abstract
Nowadays, in Solid Phase Peptide Synthesis (SPPS), being either manual, automated, continuous flow or microwave-assisted, the reaction with various coupling reagents takes place via in situ active ester formation. In this study, the formation and stability of these key active esters were investigated with time-resolved 1H NMR by using the common PyBOP/DIEA and HOBt/DIC coupling reagents for both α- and β-amino acids. Parallel to the amide bond formation, the hydrolysis of the α/β-active esters, a side reaction that is a considerable efficacy limiting factor, was studied. Based on the chemical nature/constitution of the active esters, three amino acid categories were determined: (i) the rapidly hydrolyzing ones (t < 6 h) with smaller (Ala) or even longer side chains (Arg) holding a large protecting group; (ii) branched amino acids (Ile, Thr) with slowly hydrolyzing (6 < t < 24 h) propensities, and (iii) non-hydrolyzing ones, such as the hard-to-couple β-amino acids or β-sugar amino acid derivatives, stable for longer times (t > 24 h) in solution. The current insight into the kinetics of this key hydrolysis side reaction serves as a guide to optimize the coupling conditions of α- and β-amino acids, thereby saving time and minimizing the amounts of reagents and amino acids to be used – all key factors of more environmentally friendly chemistry. Parallel to the amide bond formation, the hydrolysis of the active esters of α/β-amino acids, as an unwanted side reaction limiting coupling efficacy, is studied.![]()
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Affiliation(s)
| | - Adrienn Nagy
- Laboratory of Structural Chemistry and Biology
- Institute of Chemistry
- Eötvös Loránd University
- 1117 Budapest
- Hungary
| | - Viktor Farkas
- MTA-ELTE Protein Modeling Research Group
- 1117 Budapest
- Hungary
| | - Ernő Keszei
- Chemical Kinetics Laboratory
- Institute of Chemistry
- Eötvös Loránd University
- 1117 Budapest
- Hungary
| | - András Perczel
- MTA-ELTE Protein Modeling Research Group
- 1117 Budapest
- Hungary
- Laboratory of Structural Chemistry and Biology
- Institute of Chemistry
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5
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Sun W, Gu H, Lin X. Synthesis and Application of Hexamethyl-1,1′-spirobiindane-Based Phosphine-Oxazoline Ligands in Ni-Catalyzed Asymmetric Arylation of Cyclic Aldimines. J Org Chem 2018; 83:4034-4043. [DOI: 10.1021/acs.joc.8b00422] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Weiye Sun
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Haorui Gu
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
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Ohyabu N, Kakiya K, Yokoi Y, Hinou H, Nishimura SI. Convergent Solid-Phase Synthesis of Macromolecular MUC1 Models Truly Mimicking Serum Glycoprotein Biomarkers of Interstitial Lung Diseases. J Am Chem Soc 2016; 138:8392-5. [DOI: 10.1021/jacs.6b04973] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Naoki Ohyabu
- Shionogi & Company, Ltd., 3-1-1 Futaba-cho, Toyonaka-shi, Osaka 561-0825, Japan
- Graduate School of Life Science and Faculty of Advanced
Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
| | - Kiyoshi Kakiya
- Shionogi & Company, Ltd., 2-1-3 Kuiseterashima, Amagasaki 660-0813, Japan
| | - Yasuhiro Yokoi
- Graduate School of Life Science and Faculty of Advanced
Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
| | - Hiroshi Hinou
- Graduate School of Life Science and Faculty of Advanced
Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
- Medicinal Chemistry Pharmaceuticals, Co., Ltd., N21, W12, Kita-ku, Sapporo 001-0022, Japan
| | - Shin-Ichiro Nishimura
- Graduate School of Life Science and Faculty of Advanced
Life Science, Hokkaido University, N21, W11, Kita-ku, Sapporo 001-0021, Japan
- Medicinal Chemistry Pharmaceuticals, Co., Ltd., N21, W12, Kita-ku, Sapporo 001-0022, Japan
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Ngo TH, Berndt H, Wilsdorf M, Lentz D, Reissig HU. Linear and cyclic hybrids of alternating thiophene-amino acid units: synthesis and effects of chirality on conformation and molecular packing. Chemistry 2013; 19:15155-65. [PMID: 24105938 DOI: 10.1002/chem.201302143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Indexed: 12/21/2022]
Abstract
The dipeptide isostere 5-aminothiophene carboxylic acid has been combined with L-phenylalanine moieties to provide linear and cyclic hybrid oligopeptides. A suitable protecting group strategy and appropriate coupling methods have been developed to guarantee a high degree of enantiopurity of the resulting amides. Cyclic tetraamides have been efficiently obtained by macrocyclization of the linear derivatives. In the case of racemized cyclization precursors, two diastereomeric macrocycles (S,S/R,R and meso) have been isolated. Their crystal structures show clear effects of the stereogenic centers on the ring conformations and molecular packing.
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Affiliation(s)
- Thien H Ngo
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany), Fax: (+49) 30-838-55367 http://www.bcp.fu-berlin.de/chemie/oc/reissig
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Cherkupally P, Acosta GA, Nieto-Rodriguez L, Spengler J, Rodriguez H, Khattab SN, El-Faham A, Shamis M, Luxembourg Y, Prohens R, Subiros-Funosas R, Albericio F. K-Oxyma: a Strong Acylation-Promoting, 2-CTC Resin-Friendly Coupling Additive. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300777] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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9
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Teruya K, Tanaka T, Kawakami T, Akaji K, Aimoto S. Epimerization in peptide thioester condensation. J Pept Sci 2012; 18:669-77. [DOI: 10.1002/psc.2452] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 08/06/2012] [Accepted: 08/17/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Kenta Teruya
- Institute for Protein Research; Osaka University; 3-2, Yamadaoka Suita Osaka 565-0871 Japan
- Department of Chemistry, Graduate School of Medical Science; Kyoto Prefectural University of Medicine; Kita-ku Kyoto 603-8334 Japan
| | - Takeyuki Tanaka
- Department of Life Science, Graduate School of Science and Technology; Kobe University; 1-1 Rokkodai-cho Nada-ku Kobe 657-8501 Japan
| | - Toru Kawakami
- Institute for Protein Research; Osaka University; 3-2, Yamadaoka Suita Osaka 565-0871 Japan
| | - Kenichi Akaji
- Institute for Protein Research; Osaka University; 3-2, Yamadaoka Suita Osaka 565-0871 Japan
- Department of Medicinal Chemistry; Kyoto Pharmaceutical University; Yamashina-ku Kyoto 607-8412 Japan
| | - Saburo Aimoto
- Institute for Protein Research; Osaka University; 3-2, Yamadaoka Suita Osaka 565-0871 Japan
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Tian J, Gao WC, Zhou DM, Zhang C. Recyclable Hypervalent Iodine(III) Reagent Iodosodilactone as an Efficient Coupling Reagent for Direct Esterification, Amidation, and Peptide Coupling. Org Lett 2012; 14:3020-3. [DOI: 10.1021/ol301085v] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jun Tian
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. of China
| | - Wen-Chao Gao
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. of China
| | - Dong-Mei Zhou
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. of China
| | - Chi Zhang
- State Key Laboratory of Elemento-Organic Chemistry, The Research Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. of China
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11
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T3P (propylphosphonic anhydride) mediated conversion of Nα-protected amino/peptide acids into thioacids. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.01.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Design, synthesis and biological evaluation of peptidyl-vinylaminophosphonates as novel cysteine protease inhibitors. Bioorg Med Chem 2011; 19:7129-35. [DOI: 10.1016/j.bmc.2011.09.058] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 09/28/2011] [Accepted: 09/29/2011] [Indexed: 11/20/2022]
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13
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Subirós-Funosas R, El-Faham A, Albericio F. Aspartimide formation in peptide chemistry: occurrence, prevention strategies and the role of N-hydroxylamines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.046] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Brink BD, DeFrancisco JR, Hillner JA, Linton BR. Curtin–Hammett and Steric Effects in HOBt Acylation Regiochemistry. J Org Chem 2011; 76:5258-63. [DOI: 10.1021/jo200346r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benjamin D. Brink
- Department of Chemistry, College of the Holy Cross, One College Street, Worcester, Massachusetts 01610, United States
| | - Justin R. DeFrancisco
- Department of Chemistry, College of the Holy Cross, One College Street, Worcester, Massachusetts 01610, United States
| | - Julie A. Hillner
- Department of Chemistry, College of the Holy Cross, One College Street, Worcester, Massachusetts 01610, United States
| | - Brian R. Linton
- Department of Chemistry, College of the Holy Cross, One College Street, Worcester, Massachusetts 01610, United States
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Matsushita K, Okamoto C, Yoshimoto M, Harada K, Kubo M, Fukuyama Y, Hioki H. Novel alkoxyamine linker to load ketones for solid-phase synthesis: application of the synthesis of 1,4-benzodiazepine-2-ones. JOURNAL OF COMBINATORIAL CHEMISTRY 2010; 12:311-4. [PMID: 20205451 DOI: 10.1021/cc9001795] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kimihito Matsushita
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
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Zhang ZQ, Huang RD, Xu YQ, Yu LQ, Jiao ZW, Zhu QL, Hu CW. Three complexes based on ligands 1-hydroxybenzotriazole and 1,4-benzenedicarboxylic acid: Synthesis, structures and luminescence properties. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.09.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Wang H, Matsuhashi H, Doan BD, Goodman SN, Ouyang X, Clark WM. Large-scale synthesis of SB-462795, a cathepsin K inhibitor: the RCM-based approaches. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.06.022] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Zhang ZQ, Huang RD, Dong LJ, Xu YQ, Yu LQ, Jiao ZW, Hu CW. Synthesis, structures, luminescence/magnetic properties of complexes of the M/1-hydroxybenzotriazole, M=cobalt, nickel, silver, zinc and copper. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.01.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gasser G, Neukamm MA, Ewers A, Brosch O, Weyhermüller T, Metzler-Nolte N. Synthesis and characterization of dicobalthexacarbonyl-alkyne derivatives of amino acids, peptides, and peptide nucleic acid (PNA) monomers. Inorg Chem 2009; 48:3157-66. [PMID: 19326929 DOI: 10.1021/ic900013r] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of Co(2)(CO)(8) with alkyne-containing amino acids [1a: phenylalanine (Phe) and 1b: methionine (Met)], two suitably alkyne-functionalized derivatives of the neuropeptide enkephalin (Enk) [3: Ac-Enk-Prop and 5: Ac-Enk(Pgl)-NH(2) (Ac--Acetyl; Pgl--propargylglycine; Prop--propargylamine)], a thymine Peptide Nucleic Acid (T-PNA) monomer (7), and a PNA-like monomer (9) derivative gave the respective dicobalthexacarbonyl bioconjugates in very good yields. Two different sites for labeling of the biomolecules were successfully used: The organometallic moiety was reacted with the C-terminus of alkyne-containing amino acids, peptide or PNA thymine monomers, and alternatively the organometallic compound was complexed to an internal site in the peptide or PNA. To this end, a simple glycine was replaced by propargylglycine in peptides, and a new alkyne-containing PNA-like monomer, in which an alkyne chain replaces the nucleobase, was used for PNA chemistry. For the synthesis of the two alkyne-containing enkephalin derivatives 3 and 5, two different resins, namely sulfamylbutyryl and Rink amid, were used as they allow to selectively insert, on the solid phase, an alkyne moiety at the C-terminus and on a side-chain of a peptide sequence, respectively. The identity and constitution of all cobalt complexes were confirmed by different analytical methods (IR, FAB, ESI-MS, and NMR). Most notably, IR spectroscopy shows intensive bands in the 2100-2000 cm(-1) region because of the Co(2)(CO)(6) moiety. In both (1)H NMR spectra of the dicobalthexacarbonyl PNA monomer derivatives 8 and 10, all signals are doubled because of the cis-trans isomerism about the central amide bond. The X-ray structure of a dicobalthexacarbonyl phenylalanine derivative (2a) confirms the proposed composition of the bioconjugates and shows that, as anticipated, the alkyne group of 2a is no longer linear upon complexation in comparison to the alkyne group of the bioconjugate precursor 1a, as indicated by a C-C[triple bond]C angle of about 143 degrees in 2a. Moreover, the C[triple bond]C bond of 1a was elongated by about 0.15 A upon Co(2) coordination.
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Affiliation(s)
- Gilles Gasser
- Lehrstuhl für Anorganische Chemie I-Bioanorganische Chemie, Fakultät für Chemie and Biochemie, Ruhr-Universität Bochum, D-44801 Bochum, Germany
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Wu FC, Da CS, Du ZX, Guo QP, Li WP, Yi L, Jia YN, Ma X. N-Primary-Amine-Terminal β-Turn Tetrapeptides as Organocatalysts for Highly Enantioselective Aldol Reaction. J Org Chem 2009; 74:4812-8. [DOI: 10.1021/jo9005766] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Feng-Chun Wu
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
| | - Chao-Shan Da
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
| | - Zhi-Xue Du
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
| | - Qi-Peng Guo
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
| | - Wei-Ping Li
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
| | - Lei Yi
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
| | - Ya-Ning Jia
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
| | - Xiao Ma
- Institute of Biochemistry & Molecular Biology, School of Life Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China, and Department of Biology, Shantou University, Shantou 515063, China
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Kawakami T, Aimoto S. The use of a cysteinyl prolyl ester (CPE) autoactivating unit in peptide ligation reactions. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.03.008] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Trudelle Y, Birr C. Synthesis of the sequential polypeptide poly[Cys(Acm)-Ser-Phe-Glu-Glu] as a model for hydrolytic enzymes. INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH 2009; 7:403-10. [PMID: 1184289 DOI: 10.1111/j.1399-3011.1975.tb02460.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
To construct a possible model of hydrolytic enzymes, the sequential polypeptide H[Cys(Acm)-Ser-Phe-Glu-Glu]nOH, n = 3-110, was prepared by polycondensation of H-Cys(Acm)-Ser(But)-Phe-Glu(OBut)-Glu(OBut)-O Su/1-hydroxybenzotriazole. In a solid state the polypeptide material showed beta-conformation both before and after cleavage of t-butyl protecting groups. The pentapeptide unit was synthetized by the Merrifield method utilizing modifications as follows: Gel phase synthesis on less than 0.5% cross-linked copolystyrene (quasi dissolved state). Centrifugal reactor. Ddz-amino acids, deprotected by 5% trifluoroacetic acid/dichloromethane/15 min. 3-Nitrophthalic anhydride to suppress formation of false sequences. Continuous photometric control of the completion of all operations during synthesis and transesterfication, yielding Ddz-Cys(Acm)-Ser(But)-Phe-Glu-(OBut)-Glu(OBut)-OMe (0.827 g; 53%, m.p. 180-182 degrees).
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27
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Valeur E, Bradley M. Amide bond formation: beyond the myth of coupling reagents. Chem Soc Rev 2009; 38:606-31. [DOI: 10.1039/b701677h] [Citation(s) in RCA: 1529] [Impact Index Per Article: 101.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Vale N, Matos J, Moreira R, Gomes P. Amino acids as selective acylating agents: regioselective N1-acylation of imidazolidin-4-one derivatives of the antimalarial drug primaquine. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.09.058] [Citation(s) in RCA: 10] [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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29
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Sureshbabu VV, Sudarshan NS, Chenna Krishna G. HOBt·DCHA-Mediated Synthesis of Sterically Hindered Peptides employing Fmoc-Amino Acid Chlorides in Both Solution-Phase and Solid Phase Methods. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910802219536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Vommina V. Sureshbabu
- a Department of Studies in Chemistry , Central College Campus, Bangalore University , Bangalore, India
| | | | - G. Chenna Krishna
- a Department of Studies in Chemistry , Central College Campus, Bangalore University , Bangalore, India
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Gomes P, Araújo MJ, Marques EF, Falcão S, Brito RO. Straightforward Method for the Preparation of Lysine-Based Double-Chained Anionic Surfactants. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910801997827] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Paula Gomes
- a CIQUP, Department of Chemistry, Faculty of Sciences , University of Porto , Porto, Portugal
| | - Maria João Araújo
- a CIQUP, Department of Chemistry, Faculty of Sciences , University of Porto , Porto, Portugal
| | - Eduardo F. Marques
- a CIQUP, Department of Chemistry, Faculty of Sciences , University of Porto , Porto, Portugal
| | - Soraia Falcão
- a CIQUP, Department of Chemistry, Faculty of Sciences , University of Porto , Porto, Portugal
| | - Rodrigo O. Brito
- a CIQUP, Department of Chemistry, Faculty of Sciences , University of Porto , Porto, Portugal
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32
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Coin I, Schmieder P, Bienert M, Beyermann M. The depsipeptide technique applied to peptide segment condensation: scope and limitations. J Pept Sci 2008; 14:299-306. [PMID: 17935259 DOI: 10.1002/psc.928] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A promising application of the depsipeptide technique has recently been proposed to provide ideal conditions for segment condensation, in that coupling of peptides bearing a C-terminal depsipeptide unit occurs without giving rise to epimerization at the activated amino acid. This is due to the low tendency of the activated depsipeptide units, in contrast to the corresponding peptide segments, to form optically labile oxazolones. In this work we demonstrate that coupling of depsipeptides via base-assisted activation using HBTU occurs not only without loss of configuration, but even much faster than the coupling of the corresponding all-amide segments. Nevertheless, when the coupling of long depsipeptide segments proceeds slowly, we uncovered the occurrence of beta-elimination at the activated depsipeptide unit, in an extent dependent on the presence of base in the system and on the type of the solvent. Beta-elimination was completely suppressed by using carbodiimide/HOBt activation in a non-polar solvent (DCM), and in more polar media it was limited by substituting TMP for DIEA during HBTU activation, or using particular solvent mixtures (such as DMSO/toluene) for activation via carbodiimide. Finally, we show the application of C-terminal pseudoprolines, in comparison with that of depsipeptide units, to segment coupling.
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Affiliation(s)
- Irene Coin
- Leibniz-Institut für Molekulare Pharmakologie, Robert-Rössle-Str. 10, 13125 Berlin, Germany.
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Shiina I, Ushiyama H, Yamada YK, Kawakita YI, Nakata K. 4-(Dimethylamino)pyridineN-oxide (DMAPO): An Effective Nucleophilic Catalyst in the Peptide Coupling Reaction with 2-Methyl-6-nitrobenzoic Anhydride. Chem Asian J 2008; 3:454-61. [DOI: 10.1002/asia.200700305] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Katritzky AR, Khashab NM, Yoshioka M, Haase DN, Wilson KR, Johnson JV, Chung A, Haskell-Luevano C. Microwave-Assisted Solid-Phase Peptide Synthesis Utilizing N-Fmoc-Protected (α-aminoacyl)benzotriazoles. Chem Biol Drug Des 2007; 70:465-8. [DOI: 10.1111/j.1747-0285.2007.00584.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Bakibaev AA, Shtrykova VV. Isoureas: synthesis, properties, and applications. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1995v064n10abeh000185] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Vora HU, Rovis T. Nucleophilic carbene and HOAt relay catalysis in an amide bond coupling: an orthogonal peptide bond forming reaction. J Am Chem Soc 2007; 129:13796-7. [PMID: 17929821 DOI: 10.1021/ja0764052] [Citation(s) in RCA: 297] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Harit U Vora
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA
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37
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A new type of ligand derived from N-terminal protected dipeptides in enantioselective addition of phenylacetylene to aromatic ketones at room temperature. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.03.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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38
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Paul BJ, Littler BJ, Jos F, Vogt PF, Pines SH. A Practical Synthesis of the Pseudotripeptide RC-1291. Org Process Res Dev 2006. [DOI: 10.1021/op0502506] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bernhard J. Paul
- Albany Molecular Research, Inc., 21 Corporate Circle, P.O. Box 15098, Albany, New York 12212-5098, U.S.A
| | - Benjamin J. Littler
- Albany Molecular Research, Inc., 21 Corporate Circle, P.O. Box 15098, Albany, New York 12212-5098, U.S.A
| | - Frederic Jos
- Albany Molecular Research, Inc., 21 Corporate Circle, P.O. Box 15098, Albany, New York 12212-5098, U.S.A
| | - Paul F. Vogt
- Albany Molecular Research, Inc., 21 Corporate Circle, P.O. Box 15098, Albany, New York 12212-5098, U.S.A
| | - Seemon H. Pines
- Sapphire Therapeutics, Inc., 1031 US Highway 22, Suite 303, Bridgewater, New Jersey 08807, U.S.A
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39
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Synthetic investigations of (1,3′)-bistetrahydroisoquinolines: towards pentacyclic analogues of piperazine core alkaloids. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.12.056] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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40
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Abstract
Use of excess quantity of additives such as 1-hydroxybenzotriazole, 1-hydroxy-7-azabenzotriazole, or 3,4-dihydro-3-hydroxy-4-oxo-1,2,3-benzotriazine could retard carbodiimide-mediated peptide coupling or aminolysis of the active esters in organic solvents generally employed in peptide chemistry. Solubility test and infrared spectroscopic data suggested that the amine components interacted with the additives to form some aggregates, which were less reactive toward acylation. The use of 0.1 equimolar additives against carboxyl components or carbodiimides was advantageous for rapid and efficient coupling reaction, especially when the carboxyl components were amino acids carrying urethane type N-protecting groups.
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Affiliation(s)
- Sukekatsu Nozaki
- Faculty of Pharmaceutical Sciences, Josai University, Sakado, Saitama, 350-0295, Japan.
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41
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Larroque AL, Dubois J, Thoret S, Aubert G, Guénard D, Guéritte F. Novel C2-C3' N-peptide linked macrocyclic taxoids. Part 1: Synthesis and biological activities of docetaxel analogues with a peptide side chain at C3'. Bioorg Med Chem Lett 2005; 15:4722-6. [PMID: 16165352 DOI: 10.1016/j.bmcl.2005.07.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2005] [Revised: 07/20/2005] [Accepted: 07/26/2005] [Indexed: 10/25/2022]
Abstract
A series of novel docetaxel analogues possessing a peptide side chain at the C3'-N position was synthesized. These compounds were designed to mimic a region of the alpha-tubulin loop that is equivalent to the paclitaxel binding pocket in beta-tubulin. Eight new peptidic taxoids were obtained and evaluated as inhibitors of microtubule disassembly, as well as for their cytotoxicity.
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Affiliation(s)
- Anne-Laure Larroque
- Institut de Chimie des Substanes Naturelles, CNRS, 1 avenue de la Terrasse, 91198 Gif sur Yvette Cedex, France
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Sawatzki P, Damm I, Pierstorff B, Hupfer H, Sandhoff K, Kolter T. Site-Specific Cleavage-A Model System for the Identification of Lipid-Modified Glutamate Residues in Proteins. Chembiochem 2004; 6:178-85. [PMID: 15593111 DOI: 10.1002/cbic.200400189] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Numerous proteins are modified post-translationally after their biosynthesis at the ribosomes of the cell. One such modification, only poorly characterized to date, is the formation of lipid esters of glutamate side chains in the skin proteins of land-living mammals; here a subset of very long chain fatty acids, ceramides and/or glucosylceramides, are bound through their omega-hydroxy groups to structural proteins of the so-called "cornified envelope" in the outermost layer of the skin, the stratum corneum. We report an approach for the identification of proteins containing ester-modified glutamic acid residues and the determination of their positions within the peptide sequence, designed for mass spectrometric investigation of human skin proteins.
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Affiliation(s)
- Peter Sawatzki
- Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk Strasse 1, 53121 Bonn, Germany
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43
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Neubert K, Jakubke HD. Untersuchungen über die Knüpfung der Arg-Arg-Bindung unter Verwendung verschiedener Kupplungsmethoden. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/prac.19783200206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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Jakubke HD, Klessen C, Neubert K. Über die Verwendung von Dicyclohexylcarbodiimid/3-Hydroxy-4-oxo-3,4-dihydro-chinazolin für die Synthese des C-terminalen Hexapeptidamids von Substanz P. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/prac.19773190414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Däppen R, Rihs G, Mayer CW. Investigation of the chiral recognition by “Brush-Type” phases in liquid chromatography using crystal structure analyses of diastereomeric 1:1 complexes of a π-donor and a π-acceptor derivative of leucine. Chirality 2004. [DOI: 10.1002/chir.530020310] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Gomes P, Araújo MJ, Rodrigues M, Vale N, Azevedo Z, Iley J, Chambel P, Morais J, Moreira R. Synthesis of imidazolidin-4-one and 1H-imidazo[2,1-a]isoindole-2,5(3H,9bH)-dione derivatives of primaquine: scope and limitations. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.04.077] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Abstract
The known but long-neglected compound HODhat was shown to be in certain situations a useful peptide coupling additive. Uronium and phosphonium salts with HODhat built into the system were also useful stand-alone coupling reagents. Comparisons with related additives and coupling reagents showed that the new systems were sometimes more and sometimes less effective than previously described systems in the case of stepwise and segment couplings. Applications to assembly of the model decapeptide ACP showed that HDATU was far more effective than HDTU and more effective than HATU under some conditions.
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Affiliation(s)
- Louis A Carpino
- Department of Chemistry, Box 34510, University of Massachusetts, Amherst, Massachusetts 01003-4510, USA.
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48
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Gomes P, Gomes JR, Rodrigues M, Moreira R. Amino acids as selective sulfonamide acylating agents. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01206-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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49
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Korematsu A, Furuzono T, Kishida A. Synthesis of a novel block copolymer containing aromatic polyamide and fluoroethylene segments. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pola.10872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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50
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Bahbouhi B, Chazal N, Seidah NG, Chiva C, Kogan M, Albericio F, Giralt E, Bahraoui E. Effects of L- and D-REKR amino acid-containing peptides on HIV and SIV envelope glycoprotein precursor maturation and HIV and SIV replication. Biochem J 2002; 366:863-72. [PMID: 12071862 PMCID: PMC1222836 DOI: 10.1042/bj20020052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2002] [Revised: 05/23/2002] [Accepted: 06/18/2002] [Indexed: 11/17/2022]
Abstract
The aim of the present study was to evaluate the capacity of synthetic l- and d-peptides encompassing the HIV-1(BRU) gp160 REKR cleavage site to interfere with HIV and simian immuno-deficiency virus (SIV) replication and maturation of the envelope glycoprotein (Env) precursors. To facilitate their penetration into cells, a decanoyl (dec) group was added at the N-terminus. The sequences synthesized included dec5d or dec5l (decREKRV), dec9d or dec9l (decRVVQREKRV) and dec14d or dec14l (TKAKRRVVQREKRV). The peptide dec14d was also prepared with a chloromethane (cmk) group as C-terminus. Because l-peptides exhibit significant cytotoxicity starting at 35 microM, further characterization was conducted mostly with d-peptides, which exhibited no cytotoxicity at concentrations higher than 70 microM. The data show that only dec14d and dec14dcmk could inhibit HIV-1(BRU), HIV-2(ROD) and SIV(mac251) replication and their syncytium-inducing capacities. Whereas peptides dec5d and dec9d were inactive, dec14dcmk was at least twice as active as peptide dec14d. At the molecular level, our data show a direct correlation between anti-viral activity and the ability of the peptides to interfere with maturation of the Env precursors. Furthermore, we show that when tested in vitro the dec14d peptide inhibited PC7 with an inhibition constant K(i)=4.6 microM, whereas the peptide dec14l preferentially inhibited furin with a K(i)=28 microM. The fact that PC7 and furin are the major prohormone convertases reported to be expressed in T4 lymphocytes, the principal cell targets of HIV, suggests that they are involved in the maturation of HIV and SIV Env precursors.
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Affiliation(s)
- Bouchaib Bahbouhi
- Laboratoire d'Immuno-Virologie, EA 30-38 Université Paul Sabatier, UFR/SVT, 118 route de Narbonne 31062 Toulouse, France.
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