1
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Choi J, Nawachi A, Saito N, Kondo Y, Morimoto H, Ohshima T. Evaluation of functional group compatibility and development of reaction-accelerating additives in ammonium salt-accelerated hydrazinolysis of amides. Front Chem 2024; 12:1378746. [PMID: 38841334 PMCID: PMC11150581 DOI: 10.3389/fchem.2024.1378746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 03/01/2024] [Indexed: 06/07/2024] Open
Abstract
Functional group compatibility in an amide bond cleavage reaction with hydrazine was evaluated for 26 functional groups in the functional group evaluation (FGE) kit. Accurate and rapid evaluation of the compatibility of functional groups, such as nitrogen-containing heterocycles important in drug discovery research, will enhance the application of this reaction in drug discovery research. These data will be used for predictive studies of organic synthesis methods based on machine learning. In addition, these studies led to discoveries such as the unexpected positive additive effects of carboxylic acids, indicating that the FGE kit can propel serendipitous discoveries.
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Affiliation(s)
- Jeesoo Choi
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Anna Nawachi
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Natsuki Saito
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuta Kondo
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Morimoto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu Institute of Technology, Fukuoka, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
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2
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Shukla PM, Pratap A, Maji B. DIBAL-H-mediated N-deacetylation of tertiary amides: synthesis of synthetically valuable secondary amines. Org Biomol Chem 2024; 22:501-505. [PMID: 38165251 DOI: 10.1039/d3ob01660a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
A rapid DIBAL-H-mediated N-deacetylation of tertiary amides is described under mild conditions, affording synthetically valuable secondary amines in good to excellent yields.
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Affiliation(s)
- Pushpendra Mani Shukla
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak-484886, Madhya Pradesh, India.
| | - Aniruddh Pratap
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak-484886, Madhya Pradesh, India.
| | - Biswajit Maji
- Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak-484886, Madhya Pradesh, India.
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3
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Urbiña-Alvarez J, Rincón-Carvajal S, Gamba-Sánchez D. Ammonia surrogates in the synthesis of primary amines. Org Biomol Chem 2023; 21:7036-7051. [PMID: 37575051 DOI: 10.1039/d3ob01202f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Primary amines are derivatives of ammonia in which one hydrogen atom is replaced by an alkyl or aryl group. Ammonia serves as the primary nitrogen source in amination reactions, and its utilization in solution or as a pure gas has witnessed notable advancements. However, the use of gaseous ammonia remains problematic in academic laboratory settings, while employing aqueous ammonia poses challenges in highly water-sensitive transformations. Consequently, the search for alternative sources of ammonia has garnered considerable attention among the organic chemistry community. This comprehensive literature review focuses on the use of ammonia surrogates in amination reactions, irrespective of the resulting intermediate. The review emphasizes the formation of the C-N bond and underscores the importance of generating intermediate products that can be readily transformed into primary amines through well-established reactions.
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Affiliation(s)
- Julia Urbiña-Alvarez
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
| | - Sergio Rincón-Carvajal
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
| | - Diego Gamba-Sánchez
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
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4
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Yamasaki R, Okada Y, Iizumi H, Ito A, Fukuda K, Okamoto I. Structure and Additive-free Transamidation of Planar N-Cyano Amides. J Org Chem 2023; 88:5704-5712. [PMID: 37094254 DOI: 10.1021/acs.joc.3c00172] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
Although transamidation of amides generally requires metals, additives, or harsh conditions, we present here a facile transamidation of N-cyano amides with various amines at ambient temperature without any additive. N-cyano amides preferred the trans conformation and have a reduced double bond character revealed by crystal analysis. The DFT study indicates that the transamidation reaction proceeds through the direct attack of amine on the amide carbonyl since the LUMO (or LUMO+1) is located at the carbonyl moiety.
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Affiliation(s)
- Ryu Yamasaki
- Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yuko Okada
- Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Hiromi Iizumi
- Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Ai Ito
- Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Kazuo Fukuda
- Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Iwao Okamoto
- Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan
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5
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Morimoto H. [Development of Unactivated Bond Cleavage Reactions Under Mild Conditions Based on Stabilization of Addition Intermediates]. YAKUGAKU ZASSHI 2023; 143:1005-1012. [PMID: 38044106 DOI: 10.1248/yakushi.23-00150] [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] [Indexed: 12/05/2023]
Abstract
Cleavage of unactivated bonds, such as amides, often requires challenging reaction conditions with strong acids and bases, and the tolerance of functional groups is limited. Therefore, the development of cleavage reactions for unactivated bonds under mild reaction conditions is essential. Herein, I report our recent developments in the cleavage of unactivated bonds under mild conditions. We achieved cleavage of unactivated amides, carbamates, ureas, and esters, as well as chemoselective cleavage of directing groups. Furthermore, we conducted mechanistic studies and found that these reactions proceed through the stabilization of addition intermediates.
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6
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Synthesis, odor characteristics and thermal behaviors of pyrrole esters. JOURNAL OF SAUDI CHEMICAL SOCIETY 2023. [DOI: 10.1016/j.jscs.2023.101600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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7
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Phan Thi P, Dang TA, Vu BD, Phan DC. Simple and Economical Process for Producing Amantadine Hydrochloride. ACS OMEGA 2022; 7:4787-4790. [PMID: 35187298 PMCID: PMC8851435 DOI: 10.1021/acsomega.1c04652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
A simple and economical process for producing amantadine hydrochloride (1) on a 250 g scale, an antiviral and anti-Parkinson drug, has been developed. Several methods for the preparation of 1 through intermediate N-(1-adamantyl)-acetamide (4) in four or three steps were reported. These procedures started with adamantine (2) or 1-bromoadamantane (3), acetonitrile, and sulfuric acid by using the Ritter-type reaction to obtain N-(1-adamantyl)-acetamide, which was deacetylated to afford 1-amino-adamantane (5) and then the salt formed with anhydrous HCl gives 1 with the overall yield of 1 being 50-58%. In this article, a two-step procedure for the synthesis of 1 from 1-bromadamantane (3) and formamide via N-(1-adamantyl)-formamide (6) in two steps with an overall yield of 88% was reported. In this procedure, the preparation of 6 from 3 is a key step with a yield of 94%, followed by the hydrolysis of 6 with an aq. solution of HCl to give 1 in high yield (93%). The procedure was also carried out under optimal conditions established to reduce the use of toxic reagents or solvents and was carried out in one pot to make it more environmentally friendly. The procedure can be considered as more suitable for the large-scale production of 1. The structures of product 1 and intermediate 6 were confirmed by IR, MS, 1H NMR, 13C NMR.
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Affiliation(s)
- Phuong
Dung Phan Thi
- Hanoi
University of Pharmacy, No. 13, Le Thanh Tong Str, Hoan Kiem District, Hanoi 11021, Vietnam
| | - Tuan Anh Dang
- National
Institute of Medicinal Materials, No. 3B Quang Trung, Hoan Kiem District, Hanoi 11006, Vietnam
| | - Binh Duong Vu
- Vietnam
Military Medical University, No. 160, Phung Hung Str, Phuc La Ward, Ha Dong District, Hanoi 12108, Vietnam
| | - Dinh Chau Phan
- School
of Chemical Engineering, Hanoi University
of Science and Technology, No. 1, Dai Co Viet Str, Bach Khoa Ward, Hai Ba Trung District, Hanoi 11615, Vietnam
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8
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Han Q, Xu K, Tian F, Huang S, Zeng C. A Practical Transamidation Strategy for the N-Deacylation of Amides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202112007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Lan CB, Auclair K. Ammonium Chloride‐Promoted Rapid Synthesis of Monosubstituted Ureas under Microwave Irradiation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chunling Blue Lan
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
| | - Karine Auclair
- Department of Chemistry McGill University 801 Sherbrooke Street West Montreal QC H3A 0B8 Canada
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10
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Higuchi K, Kawasaki T, Kouko T, Miyazawa H, Hikita H, Totsuka H. Intramolecular Transamidation-Cyclization of N-(α-Oxoacetyl) Diamine: Influence of Solvent, Acidity and Substituents. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Xin HL, Pang B, Choi J, Akkad W, Morimoto H, Ohshima T. C-C Bond Cleavage of Unactivated 2-Acylimidazoles. J Org Chem 2020; 85:11592-11606. [PMID: 32819091 DOI: 10.1021/acs.joc.0c01458] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
2-Acylimidazoles are widely used as post-transformable carboxylic acid equivalents in chemoselective and enantioselective reactions. Their transformations, however, require pretreatment with highly reactive, toxic methylating reagents to facilitate C-C bond cleavage. Here, we demonstrate that such pretreatment can be avoided and the C-C bond cleaved under neutral conditions without the use of additional reagents or catalysts. The scope of the reaction, including the use of products reported in the literature as substrates, and some mechanistic insights are described.
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Affiliation(s)
- Hai-Long Xin
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Bo Pang
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Jeesoo Choi
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Walaa Akkad
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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12
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Szostak M, Li G. Non-Classical Amide Bond Formation: Transamidation and Amidation of Activated Amides and Esters by Selective N–C/O–C Cleavage. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707101] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In the past several years, tremendous advances have been made in non-classical routes for amide bond formation that involve transamidation and amidation reactions of activated amides and esters. These new methods enable the formation of extremely valuable amide bonds via transition-metal-catalyzed, transition-metal-free, or metal-free pathways by exploiting chemoselective acyl C–X (X = N, O) cleavage under mild conditions. In a broadest sense, these reactions overcome the formidable challenge of activating C–N/C–O bonds of amides or esters by rationally tackling nN → π*C=O delocalization in amides and nO → π*C=O donation in esters. In this account, we summarize the recent remarkable advances in the development of new methods for the synthesis of amides with a focus on (1) transition-metal/NHC-catalyzed C–N/C–O bond activation, (2) transition-metal-free highly selective cleavage of C–N/C–O bonds, (3) the development of new acyl-transfer reagents, and (4) other emerging methods.1 Introduction2 Transamidation of Amides2.1 Transamidation by Metal–NHC Catalysis (Pd–NHC, Ni–NHC)2.2 Transition-Metal-Free Transamidation via Tetrahedral Intermediates2.3 Reductive Transamidation2.4 New Acyl-Transfer Reagents2.5 Tandem Transamidations3 Amidation of Esters3.1 Amidation of Esters by Metal–NHC Catalysis (Pd–NHC, Ni–NHC)3.2 Transition-Metal-Free Amidation of Esters via Tetrahedral Intermediates3.3 Reductive Amidation of Esters4 Transamidations of Amides by Other Mechanisms5 Conclusions and Outlook
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13
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Ohshima T, Morimoto H, Akkad W, Deguchi T. Mechanistic Studies of Nickel(II)-Catalyzed Direct Alcoholysis of 8-Aminoquinoline Amides. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)30] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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14
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Ghosh T, Jana S, Dash J. KOtBu-Promoted Transition-Metal-Free Transamidation of Primary and Tertiary Amides with Amines. Org Lett 2019; 21:6690-6694. [DOI: 10.1021/acs.orglett.9b02306] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tridev Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Snehasish Jana
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
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15
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Tan Z, Li Z, Ma Y, Qin J, Yu C. Potassium tert
-Butoxide Prompted Highly Efficient Transamidation and Its Coordination Radical Mechanism. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900666] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Zhiyong Tan
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients; Collaborative Innovation Center of Yangtze River Delta Region, Green Pharmaceuticals; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Zhenhua Li
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education; College of Pharmaceutical Sciences; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Yao Ma
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education; College of Pharmaceutical Sciences; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Jinjing Qin
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients; Collaborative Innovation Center of Yangtze River Delta Region, Green Pharmaceuticals; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Chuanming Yu
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients; Collaborative Innovation Center of Yangtze River Delta Region, Green Pharmaceuticals; Zhejiang University of Technology; 310014 Hangzhou P. R. China
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16
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Noshita M, Shimizu Y, Morimoto H, Akai S, Hamashima Y, Ohneda N, Odajima H, Ohshima T. Ammonium Salt-Accelerated Hydrazinolysis of Unactivated Amides: Mechanistic Investigation and Application to a Microwave Flow Process. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00424] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Megumi Noshita
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuhei Shimizu
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita 567-0871, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical Sciences, University of Shizuoka, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Noriyuki Ohneda
- SAIDA FDS Inc., 143-10 Isshiki, Yaizu, Shizuoka 425-0054, Japan
| | - Hiromichi Odajima
- Pacific Microwave Technologies Corp., Seattle, Washington 98116, United States
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
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17
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Zhang C, Zhang G, Luo S, Wang C, Li H. Base-catalyzed selective esterification of alcohols with unactivated esters. Org Biomol Chem 2019; 16:8467-8471. [PMID: 30371718 DOI: 10.1039/c8ob02411a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical and efficient base-catalyzed esterification has been developed for the facile synthesis of a broad range of esters from simple alcohols with unactivated tert-butyl esters. This protocol could be conducted at mild conditions, providing esters in high to excellent yields with good functional tolerance. Mechanistic studies provided evidence of an exchange of the tert-butyl alkoxide metal with the alcohol, producing a new alkoxide to participate in the transesterification reaction.
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Affiliation(s)
- Chunyan Zhang
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
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18
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Yao W, Li R, Yang J, Hao F. Hydride-catalyzed selectively reductive cleavage of unactivated tertiary amides using hydrosilane. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00924h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first hydride-catalyzed reductive cleavage of tertiary amides using the hydrosilane as reducing reagent has been developed. This transition-metal-free process may offer a versatile alternative to current systems for the selective reductive cleavage of amides.
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Affiliation(s)
- Wubing Yao
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
| | - Rongrong Li
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
| | - Jianguo Yang
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
| | - Feiyue Hao
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- China
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19
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Yin J, Zhang J, Cai C, Deng GJ, Gong H. Catalyst-Free Transamidation of Aromatic Amines with Formamide Derivatives and Tertiary Amides with Aliphatic Amines. Org Lett 2018; 21:387-392. [DOI: 10.1021/acs.orglett.8b03542] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jiawen Yin
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jingyu Zhang
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Changqun Cai
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Hang Gong
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province; The Key Laboratory of Environmentally Friendly Chemistry and Application of the Ministry of Education College of Chemistry, Xiangtan University, Xiangtan 411105, China
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20
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Improving Soluble Expression of Tyrosine Decarboxylase from Lactobacillus brevis for Tyramine Synthesis with High Total Turnover Number. Appl Biochem Biotechnol 2018; 188:436-449. [PMID: 30520007 DOI: 10.1007/s12010-018-2925-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 05/30/2018] [Indexed: 01/13/2023]
Abstract
The soluble expression of tyrosine decarboxylase (TDC) in heterologous host is often challenging. Here, acidic condition was found to be favorable for improving the soluble expression of TDC from Lactobacillus brevis in Escherichia coli, while addition of carbohydrates (such as glucose, arabinose, and fructose) was vital for decreasing the insoluble fraction. By simple pH control and addition of glucose, the specific activity of TDC in crude extract was enhanced to 46.3 U mg-1, 3.67-fold of that produced from LB medium. Optimization of the reaction conditions revealed that Tween-80 was effective in improving the tyramine production catalyzed by TDC, especially at high tyrosine loadings. As much as 400 mM tyrosine could be completely converted into tyramine with a substrate to catalyst ratio of 29.0 g g-1 and total turnover number of 23,300. This study provides efficient strategies for the highly soluble expression of TDC and biocatalytic production of tyramine.
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21
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Hassan HMA. A Highly Efficient Ga(OTf)3/KI-Catalysed Transformation of aryl azides to aryl amines using low catalyst loading. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15404076150031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A highly proficient transformation of aryl azides to aryl amines under Ga(OTf)3/KI catalysis is described.
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Affiliation(s)
- Hani Mutlak A. Hassan
- King Fahd Medical Research Center, King Abdulaziz University, PO Box 80216, Jeddah 21589, Kingdom of Saudi Arabia
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22
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Jing J, Bankefors J, Bonneaud C, Sawen E, Gerfaud T, Westin J, El-Bazbouz G, Kandelin L, Rousseau A, Olsson J, Karlsson A, Nord L, Bouix-Peter C, Helander Kenne A, Boiteau JG, Tomas L, Hennequin L, Harris CS. Rapid and Selective Cleavage of Amide Groups at Neutral pH: Applications from Hyaluronic Acid to Small Molecules. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jing Jing
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
| | - Johan Bankefors
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | - Céline Bonneaud
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
| | - Elin Sawen
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | - Thibaud Gerfaud
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
| | - Jonatan Westin
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | | | - Lina Kandelin
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | - Antoine Rousseau
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
| | - Johan Olsson
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | - Anders Karlsson
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | - Lars Nord
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | | | - Anne Helander Kenne
- Research Chemistry; Nestlé Skin Health; Seminariegatan 21 752 28 Uppsala Sweden
| | - Jean-Guy Boiteau
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
| | - Loic Tomas
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
| | - Laurent Hennequin
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
| | - Craig S. Harris
- Research Chemistry; Nestlé Skin Health; 06902 Sophia-Antipolis France
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23
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Zhou X, Zhang G, Gao B, Huang H. Palladium-Catalyzed Hydrocarbonylative C–N Coupling of Alkenes with Amides. Org Lett 2018; 20:2208-2212. [DOI: 10.1021/acs.orglett.8b00538] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xibing Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, 230026, People’s Republic of China
| | - Guoying Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, 230026, People’s Republic of China
| | - Bao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, 230026, People’s Republic of China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, 230026, People’s Republic of China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People’s Republic of China
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24
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Yoo M, Jung KY. Deacetylation of Unactivated Amide Bonds in Heterocyclic Systems Using t
-BuOK. ChemistrySelect 2018. [DOI: 10.1002/slct.201702289] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Minjin Yoo
- Department of Medicinal Chemistry and Pharmacology; University of Science & Technology; 217 Gajeong-ro, Yuseong-gu Daejeon 34113 Republic of Korea
| | - Kwan-Young Jung
- Bio & Drug Discovery Division; Korea Research Institute of Chemical Technology; 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
- Department of Medicinal Chemistry and Pharmacology; University of Science & Technology; 217 Gajeong-ro, Yuseong-gu Daejeon 34113 Republic of Korea
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25
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Liu Y, Achtenhagen M, Liu R, Szostak M. Transamidation of N-acyl-glutarimides with amines. Org Biomol Chem 2018; 16:1322-1329. [DOI: 10.1039/c7ob02874a] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Herein, we report a new method for transamidation of N-acyl-glutarimides with amines under mild, metal-free conditions that relies on amide bond twist to weaken amidic resonance.
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Affiliation(s)
- Yongmei Liu
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
- Department of Chemistry
| | | | - Ruzhang Liu
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
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26
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Xu SC, Zhu SJ, Wang J, Bi LW, Chen YX, Lu YJ, Gu Y, Zhao ZD. Design, synthesis and evaluation of novel cis - p -menthane type Schiff base compounds as effective herbicides. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Liu Y, Chen Y, Yao Y, Luo K, Zhang S, Gu Z. Confined Pool-Buried Water-Soluble Nanoparticles from Reverse Micelles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5275-5282. [PMID: 28505441 DOI: 10.1021/acs.langmuir.7b00890] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
With the special nature of confined water pools, reverse micelles (RMs) have shown potential for a wide range of applications. However, the inherent water insolubility of RMs hinders their further application prospect especially for applications related to biology. We present herein the first successful transformation of water-insoluble RMs into water-soluble nanoparticles without changing the confined aqueous interiors by hydrolysis/aminolysis of arm-cleavable interfacial cross-linked reverse micelles formed from diester surfactant 1. The unique properties exhibited by the aqueous interiors of the resulting pool-buried water-soluble nanoparticles (PWNPs) were demonstrated both by the template synthesis of gold nanoparticles in the absence of external reductants and by the fluorescence enhancement of encapsulated thioflavin T (ThT). Importantly, the unique potential for PWNPs in biological applications was exemplified by the use of ThT@PWNPs and "cell targeted" ThT@PWNPs as effective optical imaging agents of living cells. This work conceptually overcomes the application bottleneck of RMs and opens an entry to a new class of functional materials.
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Affiliation(s)
- Yong Liu
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Ying Chen
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Yongchao Yao
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Kui Luo
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Shiyong Zhang
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials and ‡College of Chemistry, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
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28
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Deguchi T, Xin HL, Morimoto H, Ohshima T. Direct Catalytic Alcoholysis of Unactivated 8-Aminoquinoline Amides. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00442] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Toru Deguchi
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, Japan, 812-8582
| | - Hai-Long Xin
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, Japan, 812-8582
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, Japan, 812-8582
| | - Takashi Ohshima
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, Japan, 812-8582
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29
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Noshita M, Shimizu Y, Morimoto H, Ohshima T. Diethylenetriamine-Mediated Direct Cleavage of Unactivated Carbamates and Ureas. Org Lett 2016; 18:6062-6065. [DOI: 10.1021/acs.orglett.6b03016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Megumi Noshita
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuhei Shimizu
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical
Sciences, Kyushu University, Fukuoka 812-8582, Japan
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30
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Tf2O-TMDS combination for the direct reductive transformation of secondary amides to aldimines, aldehydes, and/or amines. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0224-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Zhang H, Wei Y, Lu Y, Wu S, Liu Q, Liu J, Jiao Q. Three-step biocatalytic reaction using whole cells for efficient production of tyramine from keratin acid hydrolysis wastewater. Appl Microbiol Biotechnol 2016; 100:1691-1700. [PMID: 26476652 DOI: 10.1007/s00253-015-7054-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 08/19/2015] [Accepted: 09/29/2015] [Indexed: 11/27/2022]
Abstract
Tyramine has been paid more attention in recent years as a significant metabolite of tyrosine and catecholamine drug and an intermediate of medicinal material and some drugs. In this study, an effective, green, and three-step biocatalytic synthesis method for production of tyramine starting from serine in keratin acid hydrolysis wastewater was developed and investigated. Serine deaminase from Escherichia coli was first combined with tyrosine phenol-lyase from Citrobacter koseri, to convert L-serine to L-tyrosine. L-Tyrosine can then be decarboxylated to tyramine by tyrosinede carboxylase from Lactobacillus brevis. All these enzymes originated from recombinant whole cells. Serine deaminaseand tyrosine phenol-lyase could efficiently convert L-serine in wastewater to L-tyrosine at pH 8.0, 37 °C, and Triton X-100 of 0.04% when tyrosine phenol-lyase and its corresponding substrates were sequentially added. Tyrosine conversion rate reached 98 % by L-tyrosine decarboxylase. In scale-up study, the conversion yield of L-serine in wastewater to tyrosine was up to 89 %. L-Tyrosine was decarboxylated to tyramine with a high yield 94 %. Tyramine hydrochloride was obtained with a total yield 84 %. This study has provided an efficient way of recycling keratin acid hydrolysis wastewater to produce tyramine.
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Affiliation(s)
- Hongjuan Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China.,State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210093, China
| | - Yu Wei
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210093, China
| | - Yang Lu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210093, China
| | - Siping Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210093, China
| | - Qian Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210093, China
| | - Junzhong Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210093, China.
| | - Qingcai Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, Nanjing, 210093, China.
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32
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Huang PQ, Huang YH, Xiao KJ. Metal-Free Intermolecular Coupling of Arenes with Secondary Amides: Chemoselective Synthesis of Aromatic Ketimines and Ketones, and N-Deacylation of Secondary Amides. J Org Chem 2016; 81:9020-9027. [PMID: 27603045 DOI: 10.1021/acs.joc.6b01647] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The direct transformation of common secondary amides into aromatic ketimines and aromatic ketones with C-C bond formation is described. The reaction can also be used for N-deacylation of secondary amides to release amines. This method consists of in situ amide activation with triflic anhydride and intermolecular capture of the resulting highly electrophilic nitrilium intermediate with an arene. The reaction is applicable to various kinds of secondary amides (electrophiles), but only electron-rich and moderately electron-rich arenes can be used as nucleophiles. Thanks to the use of bench stable arenes instead of reactive and basic organometallics as nucleophiles, the reaction proceeded with high chemoselectivity at the secondary amido group in the presence of a series of sensitive functional groups such as aldehyde, ketone, ester, cyano, nitro, and tertiary amido groups. The reaction can be viewed as a Friedel-Crafts-type reaction using secondary amides as acylating agents or as an intermolecular version of the Bischler-Napieralski reaction.
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Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, Fujian 361005, P. R. China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, P. R. China
| | - Ying-Hong Huang
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, Fujian 361005, P. R. China
| | - Kai-Jiong Xiao
- Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, Fujian 361005, P. R. China
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33
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Yamada K, Karuo Y, Tsukada Y, Kunishima M. Mild Amide-Cleavage Reaction Mediated by Electrophilic Benzylation. Chemistry 2016; 22:14042-14047. [PMID: 27529837 DOI: 10.1002/chem.201603120] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Indexed: 11/11/2022]
Abstract
An extremely mild method for amide-cleavage by using the triazine-based benzylating reagent 4-(4,6-diphenoxy-1,3,5-triazin-2-yl)-4-benzylmorpholinium trifluoromethanesulfonate (DPT-BM), which spontaneously releases benzyl cation species when being dissolved at room temperature, has been developed. O-Benzylation of the amide with DPT-BM and the subsequent hydrolysis of the resulting intermediate benzyl imidate salt afford the corresponding amine and benzyl ester, which can be converted by hydrogenolysis into a carboxylic acid under neutral conditions. O-Benzylation proceeds depending on both steric and electronic factors around the amide group. Thus, some amides have been selectively cleaved over other amides. Furthermore, intramolecular chemoselective cleavage of an amide group in the presence of an ester group was achieved. Such selective hydrolytic reactions cannot be performed with Meerwein reagents as well as under acidic or basic hydrolytic conditions.
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Affiliation(s)
- Kohei Yamada
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Yukiko Karuo
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Yuichi Tsukada
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Munetaka Kunishima
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.
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34
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35
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Leonova MV, Skomorokhov MY, Moiseev IK, Klimochkin YN. One-pot amination of cage hydrocarbons. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428015120064] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Adamkiewicz A, Mlynarski J. Diastereoselective Hydrosilylation of N
-(tert
-Butylsulfinyl)imines Catalyzed by Zinc Acetate. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501318] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Chen W, Bao H, Wang D, Wang X, Li Y, Hu Y. Chemoselective hydrogenation of nitrobenzyl ethers to aminobenzyl ethers catalyzed by palladium–nickel bimetallic nanoparticles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Romero NA, Margrey KA, Tay NE, Nicewicz DA. Site-selective arene C-H amination via photoredox catalysis. Science 2015; 349:1326-30. [PMID: 26383949 DOI: 10.1126/science.aac9895] [Citation(s) in RCA: 604] [Impact Index Per Article: 67.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Over the past several decades, organometallic cross-coupling chemistry has developed into one of the most reliable approaches to assemble complex aromatic compounds from preoxidized starting materials. More recently, transition metal-catalyzed carbon-hydrogen activation has circumvented the need for preoxidized starting materials, but this approach is limited by a lack of practical amination protocols. Here, we present a blueprint for aromatic carbon-hydrogen functionalization via photoredox catalysis and describe the utility of this strategy for arene amination. An organic photoredox-based catalyst system, consisting of an acridinium photooxidant and a nitroxyl radical, promotes site-selective amination of a variety of simple and complex aromatics with heteroaromatic azoles of interest in pharmaceutical research. We also describe the atom-economical use of ammonia to form anilines, without the need for prefunctionalization of the aromatic component.
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Affiliation(s)
- Nathan A Romero
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599-3290, USA
| | - Kaila A Margrey
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599-3290, USA
| | - Nicholas E Tay
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599-3290, USA
| | - David A Nicewicz
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599-3290, USA.
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39
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Wang AE, Chang Z, Liu YP, Huang PQ. Mild N-deacylation of secondary amides by alkylation with organocerium reagents. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.05.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Shimizu Y, Noshita M, Mukai Y, Morimoto H, Ohshima T. Cleavage of unactivated amide bonds by ammonium salt-accelerated hydrazinolysis. Chem Commun (Camb) 2015; 50:12623-5. [PMID: 24888986 DOI: 10.1039/c4cc02014f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrazinolysis of unactivated amide bonds is significantly accelerated by the addition of ammonium salts. The reactions proceed at 50-70 °C to give amines with broad substrate scope that outperforms existing amide bond cleavage reactions. Application to peptide and amino sugar derivatives is also demonstrated.
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Affiliation(s)
- Yuhei Shimizu
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan.
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41
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A general method for the direct transformation of common tertiary amides into ketones and amines by addition of Grignard reagents. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.074] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Bartolucci S, Mari M, Bedini A, Piersanti G, Spadoni G. Iridium-catalyzed direct synthesis of tryptamine derivatives from indoles: exploiting n-protected β-amino alcohols as alkylating agents. J Org Chem 2015; 80:3217-22. [PMID: 25699684 DOI: 10.1021/acs.joc.5b00195] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The selective C3-alkylation of indoles with N-protected ethanolamines involving the "borrowing hydrogen" strategy is described. This method provides convenient and sustainable access to several tryptamine derivatives.
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Affiliation(s)
- Silvia Bartolucci
- Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Michele Mari
- Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Annalida Bedini
- Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Giovanni Piersanti
- Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
| | - Gilberto Spadoni
- Department of Biomolecular Sciences, University of Urbino "Carlo Bo", Piazza del Rinascimento 6, 61029 Urbino (PU), Italy
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43
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Stockdale TP, Williams CM. Pharmaceuticals that contain polycyclic hydrocarbon scaffolds. Chem Soc Rev 2015; 44:7737-63. [DOI: 10.1039/c4cs00477a] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review comprehensively explores approved pharmaceutical compounds that contain polycyclic scaffolds and the properties that these skeletons convey.
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Affiliation(s)
- Tegan P. Stockdale
- School of Chemistry and Molecular Biosciences
- University of Queensland
- St Lucia
- Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences
- University of Queensland
- St Lucia
- Australia
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44
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Abstract
Site-selective peptide/protein degradation through chemical cleavage methods is an important modification of biologically relevant macromolecules which complements enzymatic hydrolysis. In this review, recent progress in chemical, site-selective peptide bond cleavage is overviewed, with an emphasis on postulated mechanisms and their implications on reactivity, selectivity, and substrate scope.
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45
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Fu R, Yang Y, Chen Z, Lai W, Ma Y, Wang Q, Yuan R. Microwave-assisted heteropolyanion-based ionic liquids catalyzed transamidation of non-activated carboxamides with amines under solvent-free conditions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.066] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Sultane PR, Mete TB, Bhat RG. Chemoselective N-deacetylation under mild conditions. Org Biomol Chem 2014; 12:261-4. [PMID: 24281043 DOI: 10.1039/c3ob41971a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient chemoselective N-deacetylation using the Schwartz reagent at room temperature in rapid time is described. The mild and neutral conditions enable orthogonal N-deacetylation in the presence of some of the common protecting groups (viz. Boc, Fmoc, Cbz, Ts). The deprotection conditions did not induce any epimerization at the chiral amino centre.
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Affiliation(s)
- Prakash R Sultane
- Mendeleev Block, Department of Chemistry, Indian Institute of Science Education & Research (IISER), Pune, 411008, Maharashtra, India.
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47
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Ortho-substituent effect promoted rapid cleavage of amide C–N bond under mild conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-013-1140-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Wu W. Theoretical Insight into the Mechanism of an Efficient ʟ-Proline-catalyzed Transamidation of Acetamide with Benzylamine. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.9.2673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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49
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Morimoto H, Fujiwara R, Shimizu Y, Morisaki K, Ohshima T. Lanthanum(III) Triflate Catalyzed Direct Amidation of Esters. Org Lett 2014; 16:2018-21. [DOI: 10.1021/ol500593v] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hiroyuki Morimoto
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Risa Fujiwara
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuhei Shimizu
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Kazuhiro Morisaki
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Takashi Ohshima
- Graduate
School of Pharmaceutical
Sciences, Kyushu University, Fukuoka, 812-8582, Japan
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Binh Nguyen T, Al-Mourabit A, Ermolenko L, Tran Huu Dau ME. Hydrogen Bond Organocatalysis of Benzotriazole in Transamidation of Carboxamides with Amines. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)41] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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