1
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yao Z, Yang J, Luo ZL, Ye J, Han J, zhang X, Xu L, Wang P, Shi Q. Visible‐Light Photoredox‐Catalyzed Tandem One‐Pot Construction of C4‐Difluoroalkylated Phthalazin‐1(2H)‐ones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- zhen yao
- Renmin University of China CHINA
| | | | | | | | | | | | - Lijin Xu
- Renmin University of China CHINA
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2
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Sivaraj C, Ramkumar A, Sankaran N, Gandhi T. Transition-metal-catalyzed C-H bond activation/functionalization and annulation of phthalazinones. Org Biomol Chem 2021; 19:8165-8183. [PMID: 34524346 DOI: 10.1039/d1ob01616d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Phthalazinones and their higher congeners are commonly prevalent structural motifs that occur in natural products, bioactive molecules, and pharmaceuticals. In the past few decades, transition-metal-catalyzed reactions have received an overwhelming response from organic chemists as challenging organics and heterocycles could be built with ease. Currently, the synthesis of phthalazinones largely depends on transition-metal catalysis, especially by palladium-catalyzed carbonylation. Further, the dominance of transition-metal catalysts was realized from the phthalazinones viewpoint, as nitrogen and oxygen atoms endowed upon them act as directing groups to facilitate diverse C-H activation/functionalization/annulation reactions. This highlight describes the various synthetic methods used to access phthalazinones and functionalize them by reacting with various coupling partners via chelation assistance strategy involving C(sp2)-H/N-H bond activation in the presence of transition-metal (Rh, Ru, Pd, and Ir) catalysts. The mechanisms of sulfonylation, halogenation, acylmethylation, alkylation, and annulation reactions are discussed.
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Affiliation(s)
- Chandrasekaran Sivaraj
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
| | - Alagumalai Ramkumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
| | - Nagesh Sankaran
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
| | - Thirumanavelan Gandhi
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
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3
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Wang J, Zhu Y, Yang L, Liu H, Zhou T, Xu F, Xu P, Yuan L, Liang L. Early Diagnosis of Cerebral Ischemia Reperfusion Injury and Revelation of Its Regional Development by a H 3R Receptor-Directed Probe. ACS Sens 2021; 6:1330-1338. [PMID: 33653024 DOI: 10.1021/acssensors.0c02667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In vivo imaging of cerebral hydrogen peroxide (H2O2) may facilitate early diagnosis of cerebral ischemia reperfusion injury (CIRI) and a revelation of its pathological progression. In this study, we report our rational design of a brain-targeting fluorescent probe using the basis of a pyridazinone scaffold. A structure-activity relationship study reveals that PCAB is the best candidate (Ki = 15.8 nM) for a histamine H3 receptor (H3R), which is highly expressed in neurons of the central nervous system. As a two-photon fluorescent probe, PCAB exhibits a fast, selective reaction toward both extra- and intracellular H2O2 in SH-SY5Y cells under oxygen glucose deprivation and resupply. In vivo fluorescent imaging of a middle cerebral artery occlusion mouse confirms that PCAB is an ultrasensitive probe with potent blood-brain barrier penetration, precise brain targeting, and fast detection of CIRI.
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Affiliation(s)
- Junda Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yuanjun Zhu
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Lingfei Yang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Hui Liu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Tongliang Zhou
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Fengrong Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ping Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Lan Yuan
- Medical and Health Analysis Center, Peking University Health Science Center, Beijing 100191, China
| | - Lei Liang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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4
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Du X, Hou H, Zhao Y, Sheng S, Chen J. Rhodium(III)-Catalyzed Alkynylation of 4-Arylphthalazin-1(2 H
)-one Scaffolds via C-H Bond Activation. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xuxin Du
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
| | - Hongcen Hou
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
| | - Yongli Zhao
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
| | - Shouri Sheng
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
| | - Junmin Chen
- Key Laboratory of Functional Small Organic Molecules; Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; 330022 Nanchang P. R. China
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5
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Zhou T, Wang J, Xu J, Zheng C, Niu Y, Wang C, Xu F, Yuan L, Zhao X, Liang L, Xu P. A Smart Fluorescent Probe for NO Detection and Application in Myocardial Fibrosis Imaging. Anal Chem 2020; 92:5064-5072. [DOI: 10.1021/acs.analchem.9b05435] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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6
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Zhang X, Wan X, Cong Y, Zhen X, Li Q, Zhang-Negrerie D, Du Y, Zhao K. Lactonization of 2-Alkynylbenzoates for the Assembly of Isochromenones Mediated by BF 3·Et 2O. J Org Chem 2019; 84:10402-10411. [PMID: 31328911 DOI: 10.1021/acs.joc.9b01601] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A general and efficient lactonization method of readily available 2-alkynylbenzoates affording biologically important isochromenones has been realized via a solely BF3·Et2O-mediated 6-endo-dig cyclization process under mild conditions. An alternative mechanistic pathway in which BF3·Et2O activates the carbonyl of the ester moiety, rather than the alkyne triple bond, was postulated on the basis of control experiment results. Gram-scale reaction and further application for the assembly of more complex molecules demonstrated the practicability of the protocol.
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Affiliation(s)
- Xiang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xintong Wan
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Ying Cong
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Xiaohua Zhen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Qiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072 , China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology , Tianjin University , Tianjin 300072 , China
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7
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Chang YC, Prakash S, Cheng CH. ReI-Catalyzed highly regio- and stereoselective C–H addition to terminal and internal alkynes. Org Chem Front 2019. [DOI: 10.1039/c8qo01068d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Re(i)-Catalyzed ortho alkenylation of arylpyridines and N-pyrimidyl indoles with alkynes provides excellent regio- and stereoselectivity with lower catalytic loadings.
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Affiliation(s)
- Yu-Che Chang
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Sekar Prakash
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Chien-Hong Cheng
- Department of Chemistry
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
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8
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Yamamoto C, Hirano K, Miura M. Cesium Hydroxide-mediated Regio- and Stereoselective Hydroamidation of Internal Aryl Alkynes with Primary Amides. CHEM LETT 2017. [DOI: 10.1246/cl.170379] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chiaki Yamamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871
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9
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Zhou T, Yang L, Liang L, Liu H, Zhu Y, Shui M, Yuan L, Xu F, Niu Y, Wang C, Xu P. Rational Design of a Near-Infrared Fluorescent Probe Based on a Pyridazinone Scaffold. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Tongliang Zhou
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
| | - Lingfei Yang
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
| | - Lei Liang
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
| | - Hui Liu
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
| | - Yuanjun Zhu
- Department of Molecular and Cellular Pharmacology; School of Pharmaceutical Sciences; Peking University; Beijing China
| | - Mengyang Shui
- Department of Molecular and Cellular Pharmacology; School of Pharmaceutical Sciences; Peking University; Beijing China
| | - Lan Yuan
- Medical and Healthy Analysis Center; Peking University; Beijing China
| | - Fengrong Xu
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
| | - Yan Niu
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
| | - Chao Wang
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
| | - Ping Xu
- Department of Medicinal Chemistry; School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing China
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10
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Shakoor SMA, Kumari S, Khullar S, Mandal SK, Kumar A, Sakhuja R. Ruthenium(II)-Catalyzed Regioselective Ortho Amidation of Imidazo Heterocycles with Isocyanates. J Org Chem 2016; 81:12340-12349. [DOI: 10.1021/acs.joc.6b02282] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- S. M. Abdul Shakoor
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
| | - Santosh Kumari
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
| | - Sadhika Khullar
- Department
of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, S.A.S. Nagar, Manuali P.O., Punjab 140306, India
| | - Sanjay K. Mandal
- Department
of Chemical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, S.A.S. Nagar, Manuali P.O., Punjab 140306, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
| | - Rajeev Sakhuja
- Department of Chemistry, Birla Institute of Technology & Science, Pilani, Rajasthan 333031, India
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11
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Yang L, Zhu Y, Shui M, Zhou T, Cai Y, Wang W, Xu F, Niu Y, Wang C, Zhang JL, Xu P, Yuan L, Liang L. Rational Design of Fluorescent Phthalazinone Derivatives for One- and Two-Photon Imaging. Chemistry 2016; 22:12363-70. [DOI: 10.1002/chem.201601499] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Lingfei Yang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
- Medical and Healthy Analysis Center; Peking University; Beijing P. R. China
| | - Yuanjun Zhu
- Department of Molecular and Cellular Pharmacology; School of Pharmaceutical Sciences; Peking University; Beijing P. R. China
| | - Mengyang Shui
- Department of Molecular and Cellular Pharmacology; School of Pharmaceutical Sciences; Peking University; Beijing P. R. China
| | - Tongliang Zhou
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
| | - Yuanbo Cai
- Beijing National Laboratory for Molecular Science; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing P. R.China
| | - Wei Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
| | - Fengrong Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
| | - Yan Niu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
| | - Chao Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Science; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; Beijing P. R.China
| | - Ping Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
| | - Lan Yuan
- Medical and Healthy Analysis Center; Peking University; Beijing P. R. China
| | - Lei Liang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences; Peking University Health Science Center; Beijing P. R. China
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12
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Yang L, Wang W, Sun Q, Xu F, Niu Y, Wang C, Liang L, Xu P. Development of novel proteasome inhibitors based on phthalazinone scaffold. Bioorg Med Chem Lett 2016; 26:2801-2805. [PMID: 27158142 DOI: 10.1016/j.bmcl.2016.04.067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/11/2016] [Accepted: 04/23/2016] [Indexed: 11/18/2022]
Abstract
In this study we designed a series of proteasome inhibitors using pyridazinone as initial scaffold, and extended the structure with rational design by computer aided drug design (CADD). Two different synthetic routes were explored and the biological evaluation of the phthalazinone derivatives was investigated. Most importantly, electron positive triphenylphosphine group was first introduced in the structure of proteasome inhibitors and potent inhibition was achieved. As 6c was the most potent inhibitor of proteasome, we examined the structure-activity relationship (SAR) of 6c analogs.
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Affiliation(s)
- Lingfei Yang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Wei Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Qi Sun
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Fengrong Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Yan Niu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Chao Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Lei Liang
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China.
| | - Ping Xu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
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