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Chen TH, Ando A, Shamoto O, Fuse S. Effect of Brønsted Acids on the Activation of Mixed Anhydride/Mixed Carbonic Anhydride and C-Terminal-Free N-Methylated Peptide Synthesis in a Micro-Flow Reactor. Chemistry 2024; 30:e202401402. [PMID: 38719730 DOI: 10.1002/chem.202401402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Indexed: 06/19/2024]
Abstract
Amidations employing mixed (carbonic) anhydrides have long been favoured in peptide synthesis because of their cost-effectiveness and less waste generation. Despite their long history, no study has compared the effects of additives on the activation of mixed anhydrides and carbonic anhydrides. In this study, we investigated the amidation of mixed (carbonic) anhydride in the presence of a base and/or Brønsted acids. The use of NMI⋅HCl significantly improved the conversion of the mixed carbonic anhydride, while expediting nucleophilic attacks on the desired carbonyl group. In contrast, in the case of mixed anhydrides, neither the conversion nor the desired nucleophilic attack improved significantly. We developed a C-terminus-free N-methylated peptide synthesis method using mixed carbonic anhydrides in a micro-flow reactor. Fourteen N-alkylated peptides were synthesized in moderate to high yields (55-99 %) without severe racemization (<1 %). Additionally, a significant enhancement in the amidation between mixed carbonic anhydrides and bis-TMS-protected N-methyl amino acids with the inclusion of NMI⋅HCl was observed for the first time. In addition, we observed unexpected C-terminal epimerization of the C-terminus-free N-methyl peptides.
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Affiliation(s)
- Ting-Ho Chen
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Akira Ando
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Otoka Shamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Shinichiro Fuse
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
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2
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Kurasaki H, Nagaya A, Kobayashi Y, Matsuda A, Matsumoto M, Morimoto K, Taguri T, Takeuchi H, Handa M, Cary DR, Nishizawa N, Masuya K. Isostearyl Mixed Anhydrides for the Preparation of N-Methylated Peptides Using C-Terminally Unprotected N-Methylamino Acids. Org Lett 2020; 22:8039-8043. [DOI: 10.1021/acs.orglett.0c02984] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Haruaki Kurasaki
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
| | - Akihiro Nagaya
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi, Chiba 274-8507, Japan
| | - Yutaka Kobayashi
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
| | - Ayumu Matsuda
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
| | - Masatoshi Matsumoto
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
| | - Koki Morimoto
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
| | - Tomonori Taguri
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
| | - Hisayuki Takeuchi
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi, Chiba 274-8507, Japan
| | - Michiharu Handa
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi, Chiba 274-8507, Japan
| | - Douglas R. Cary
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
| | - Naoki Nishizawa
- Chemical Research Laboratories, Nissan Chemical Corporation, 2-10-1, Tsuboi-Nishi, Funabashi, Chiba 274-8507, Japan
| | - Keiichi Masuya
- PeptiDream, Inc. 3-25-23 Tonomachi, Kawasaki-ku Kawasaki, Kanagawa 210-0821, Japan
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3
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Fuse S, Masuda K, Otake Y, Nakamura H. Peptide‐Chain Elongation Using Unprotected Amino Acids in a Micro‐Flow Reactor. Chemistry 2019; 25:15091-15097. [DOI: 10.1002/chem.201903531] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/28/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Shinichiro Fuse
- Laboratory for Chemistry and Life Science, Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Koshiro Masuda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
- School of Life Science and Technology Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Yuma Otake
- Laboratory for Chemistry and Life Science, Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
- School of Life Science and Technology Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
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4
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Khaybullin RN, Panda SS, Mirzai S, Toneff E, Asiri AM, Hall CD, Katritzky AR. Arginine thioacid in synthesis of arginine conjugates and peptides. RSC Adv 2014. [DOI: 10.1039/c4ra04897k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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5
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Ha K, Lebedyeva I, Li Z, Martin K, Williams B, Faby E, Nasajpour A, Pillai GG, Al-Youbi AO, Katritzky AR. Conformationally Assisted Lactamizations for the Synthesis of Symmetrical and Unsymmetrical Bis-2,5-diketopiperazines. J Org Chem 2013; 78:8510-23. [DOI: 10.1021/jo401235k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Khanh Ha
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Iryna Lebedyeva
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Zhiliang Li
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Kristin Martin
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Byron Williams
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Eric Faby
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Amir Nasajpour
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Girinath G. Pillai
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Institute of Chemistry, University of Tartu, Tartu 50411, Estonia
| | - Abdulrahman O. Al-Youbi
- Chemistry Department, Faculty
of Science, King Abdulaziz University,
Jeddah, 21589 Saudi Arabia
| | - Alan R. Katritzky
- Center for Heterocyclic
Compounds,
Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
- Chemistry Department, Faculty
of Science, King Abdulaziz University,
Jeddah, 21589 Saudi Arabia
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6
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Verardo G, Gorassini A. α-N
-Protected dipeptide acids: a simple and efficient synthesis via the easily accessible mixed anhydride method using free amino acids in DMSO and tetrabutylammonium hydroxide. J Pept Sci 2013; 19:315-24. [DOI: 10.1002/psc.2503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 01/02/2013] [Accepted: 01/02/2013] [Indexed: 11/07/2022]
Affiliation(s)
- G. Verardo
- Dipartimento di Chimica, Fisica e Ambiente; Università di Udine; Via del Cotonificio 108 I-33100 Udine Italy
| | - A. Gorassini
- Dipartimento di Storia e Tutela dei Beni Culturali; Università di Udine; Palazzo Caiselli, Vicolo Florio 2 I-33100 Udine Italy
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7
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Roodbeen R, Pedersen SL, Hosseini M, Jensen KJ. Microwave Heating in the Solid-Phase Synthesis ofN-Methylated Peptides: When Is Room Temperature Better? European J Org Chem 2012. [DOI: 10.1002/ejoc.201201050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Affiliation(s)
- Ayman El-Faham
- Institute for Research in Biomedicine, Barcelona, Spain.
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