1
|
Serra M, Bernardi E, Lorenzi ED, Colombo L. Synthesis of Functionalized 6,5- and 7,5-Azabicycloalkane Amino Acids by Metathesis Reactions. J Org Chem 2019; 84:15726-15734. [PMID: 31693859 DOI: 10.1021/acs.joc.9b02268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Azabicyclo[4.3.0]- and [5.3.0]alkanone amino acid derivatives were easily prepared by submitting the same starting dipeptide to a direct ring-closing enyne metathesis or an ethylene-mediated cross-enyne metathesis/ring-closing metathesis, respectively. The reactivity of the newly synthesized 6,5- and 7,5-fused bicyclic scaffolds was then investigated to obtain variously functionalized derivatives with potential applications in the field of peptides/peptidomimetics.
Collapse
Affiliation(s)
- Massimo Serra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section , University of Pavia , Viale Taramelli 12 , 27100 Pavia , Italy
| | - Eric Bernardi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section , University of Pavia , Viale Taramelli 12 , 27100 Pavia , Italy
| | - Ersilia De Lorenzi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section , University of Pavia , Viale Taramelli 12 , 27100 Pavia , Italy
| | - Lino Colombo
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section , University of Pavia , Viale Taramelli 12 , 27100 Pavia , Italy
| |
Collapse
|
2
|
Xiang JC, Wang ZX, Cheng Y, Ma JT, Wang M, Tang BC, Wu YD, Wu AX. A C-H Oxidation/Two-Fold Cyclization Approach to Imidazopyridoindole Scaffold under Mild Oxidizing Conditions. J Org Chem 2017; 82:13671-13677. [PMID: 29171272 DOI: 10.1021/acs.joc.7b02448] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An expeditious one-step synthesis of the imidazopyridoindole scaffold was achieved through the C-H oxidation/two-fold cyclization reaction of methyl ketone and tryptamine derivatives. Mild oxidizing conditions were employed to realize the efficient oxidation of C(sp3)-H bonds, while suppressing overoxidation of the intermediate and ensuring the cross-trapping of two in situ generated acylimine intermediates.
Collapse
Affiliation(s)
- Jia-Chen Xiang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| | - Zi-Xuan Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| | - Yan Cheng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| | - Jin-Tian Ma
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| | - Miao Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| | - Bo-Cheng Tang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University , Hubei, Wuhan 430079, P. R. China
| |
Collapse
|
3
|
Li T, Lu T, Yu C, Yao C. An efficient synthesis of [1,3]dioxolo[4,5-g]thieno[3,4-b]quinolin-8(5H)-ones as novel thiazapodophyllotoxin analogues with potential anticancer activity. Bioorg Med Chem Lett 2015; 25:1417-9. [PMID: 25759030 DOI: 10.1016/j.bmcl.2015.02.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 02/03/2015] [Accepted: 02/20/2015] [Indexed: 10/23/2022]
Abstract
A catalyst-free synthesis of 6,9-dihydro-[1,3]dioxolo[4,5-g]thieno[3,4-b]quinolin-8(5H)-ones as novel analogues of podophyllotoxins was developed by a three-component reaction of aldehydes, ethyl 2,4-dioxotetrahydrothiophene-3-carboxylate and 3,4-(methylenedioxy)aniline. This methodology not only provides new chemical library for the screening of anticancer activity, but also features excellent isolated yields, short reaction time, simple work up procedure and little environmental impact.
Collapse
Affiliation(s)
- Tuanjie Li
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
| | - Ting Lu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
| | - Chenxia Yu
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
| | - Changsheng Yao
- School of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China.
| |
Collapse
|
4
|
Li XT, Liu YH, Liu X, Zhang ZH. Meglumine catalyzed one-pot, three-component combinatorial synthesis of pyrazoles bearing a coumarin unit. RSC Adv 2015. [DOI: 10.1039/c5ra01677k] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Meglumine has been found to be an efficient catalyst for the synthesis of pyrazolylcoumarins by one-pot three-component reaction of salicylaldehyde, 4-hydroxy-6-methyl-2H-pyran-2-one, and hydrazine.
Collapse
Affiliation(s)
- Xiao-Tang Li
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Yu-Heng Liu
- The College of Preclinical Medicine
- Hebei Medical University
- Shijiazhuang 050017
- P. R. China
| | - Xin Liu
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Zhan-Hui Zhang
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| |
Collapse
|
5
|
Li XT, Zhao AD, Mo LP, Zhang ZH. Meglumine catalyzed expeditious four-component domino protocol for synthesis of pyrazolopyranopyrimidines in aqueous medium. RSC Adv 2014. [DOI: 10.1039/c4ra08689a] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Meglumine has been found to be an efficient catalyst for the synthesis of structurally diverse tricyclic fused pyrazolopyranopyrimidines by one-pot, four-component reaction of ethyl acetoacetate, hydrazine hydrate, aromatic aldehydes and barbituric acid in water.
Collapse
Affiliation(s)
- Xiao-Tang Li
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Ai-Dong Zhao
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Li-Ping Mo
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Zhan-Hui Zhang
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| |
Collapse
|