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Homma H, Harada S, Ito T, Kanda A, Nemoto T. Atypical Dearomative Spirocyclization of β-Naphthols with Diazoacetamides Using a Silver Catalyst. Org Lett 2020; 22:8132-8138. [PMID: 33026816 DOI: 10.1021/acs.orglett.0c03110] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A chemoselective dearomatization of the less reactive benzenoid unit in β-naphthol was developed. Spirocyclization with a reductant constructs a pivotal structure for drug candidates. One-pot oxidative conversion enabled the tandem dearomatization of β-naphthol, producing conjugated tetraenone variants. The potential utility of the product as an F--selective anion sensor was also demonstrated. Theoretical studies revealed the intermediacy of silver-carbenoid species leading to chemoselective spirocyclization over arene cyclopropanation.
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Affiliation(s)
- Haruka Homma
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Tsubasa Ito
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Ayaka Kanda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan.,Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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Gao Z, Hurst WJ, Guillot E, Czechtizky W, Lukasczyk U, Nagorny R, Pruniaux MP, Schwink L, Sanchez JA, Stengelin S, Tang L, Winkler I, Hendrix JA, George PG. Discovery of aryl ureas and aryl amides as potent and selective histamine H3 receptor antagonists for the treatment of obesity (part I). Bioorg Med Chem Lett 2013; 23:3416-20. [PMID: 23591110 DOI: 10.1016/j.bmcl.2013.03.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 03/18/2013] [Accepted: 03/20/2013] [Indexed: 11/28/2022]
Abstract
A series of structurally novel aryl ureas was derived from optimization of the HTS lead as selective histamine H3 receptor (H3R) antagonists. The SAR was explored and the data obtained set up the starting point and foundation for further optimization. The most potent tool compounds, as exemplified by compounds 2l, 5b, 5d, and 5e, displayed antagonism potencies in the subnanomolar range in in vitro human-H3R FLIPR assays and rhesus monkey H3R binding assays.
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Affiliation(s)
- Zhongli Gao
- LGCR SMRPD Chemical Research, Sanofi US, 153-1-122, 153 2nd Ave, Waltham, MA 02451, USA.
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Gao Z, Hurst WJ, Guillot E, Czechtizky W, Lukasczyk U, Nagorny R, Pruniaux MP, Schwink L, Sanchez JA, Stengelin S, Tang L, Winkler I, Hendrix JA, George PG. Discovery of aryl ureas and aryl amides as potent and selective histamine H3 receptor antagonists for the treatment of obesity (Part II). Bioorg Med Chem Lett 2013; 23:3421-6. [DOI: 10.1016/j.bmcl.2013.03.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 03/18/2013] [Accepted: 03/20/2013] [Indexed: 01/06/2023]
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Grob JE, Dechantsreiter MA, Tichkule RB, Connolly MK, Honda A, Tomlinson RC, Hamann LG. One-Pot C–N/C–C Cross-Coupling of Methyliminodiacetic Acid Boronyl Arenes Enabled by Protective Enolization. Org Lett 2012; 14:5578-81. [DOI: 10.1021/ol302702q] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jonathan E. Grob
- Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Michael A. Dechantsreiter
- Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ritesh B. Tichkule
- Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Michael K. Connolly
- Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ayako Honda
- Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ronald C. Tomlinson
- Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Lawrence G. Hamann
- Novartis Institutes for BioMedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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Bai JF, Wang LL, Peng L, Guo YL, Jia LN, Tian F, He GY, Xu XY, Wang LX. Asymmetric Michael Addition of α-Substituted Isocyanoacetates with Maleimides Catalyzed by Chiral Tertiary Amine Thiourea. J Org Chem 2012; 77:2947-53. [DOI: 10.1021/jo2025288] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian-Fei Bai
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
| | - Liang-Liang Wang
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
| | - Lin Peng
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Yun-Long Guo
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
| | - Li-Na Jia
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- Graduate School of Chinese Academy of Sciences, Beijing, China
| | - Fang Tian
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Guang-Yun He
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiao-Ying Xu
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Li-Xin Wang
- Key Laboratory of Asymmetric
Synthesis and Chirotechnology of Sichuan Province, Chengdu Institute
of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
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Łażewska D, Kieć-Kononowicz K. Recent advances in histamine H3receptor antagonists/inverse agonists. Expert Opin Ther Pat 2010; 20:1147-69. [DOI: 10.1517/13543776.2010.509346] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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