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Wang J, Zhao L, Zhang Y, Zheng P, Zou P, Wu G. Alkyltin fluorides as alkylating reagent in aminoalkylation of maleimides. Org Biomol Chem 2023. [PMID: 37377436 DOI: 10.1039/d3ob00889d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Alkyltin fluoride is a frequently used electrophilic stannylation reagent via the cleavage of the Sn-F bond in traditional organic synthetic chemistry. Herein, we report the unprecedented copper-catalyzed aminoalkylation of maleimides using alkyltin fluoride as alkylating reagent through cleavage of the C-Sn bond via a radical pathway. Excellent functional group tolerance, use of O2 as green oxidant and late-stage modification of some drug intermediates are the standout features of the current toolbox. Mechanistic studies reveal that alkyltin fluorides are capable of producing alkyl radicals in a Cu/O2 catalytic system.
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Affiliation(s)
- Jingjing Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Lin Zhao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Yafei Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Peisen Zheng
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Peng Zou
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
| | - Ge Wu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, People's Republic of China.
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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3
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Suzuki K, Nishimoto Y, Yunoki H, Tsuruwa K, Esumi N, Yasuda M. Regio- and Stereo-controlled Addition Reaction of Aminoallylic Stannanes to Aldehydes Mediated by Germanium Dichloride. CHEM LETT 2018. [DOI: 10.1246/cl.180291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Kensuke Suzuki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshihiro Nishimoto
- Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hiroshi Yunoki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kensuke Tsuruwa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Naoto Esumi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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4
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Perez GF, Pérez-Losada M, Isaza N, Rose MC, Colberg-Poley AM, Nino G. Nasopharyngeal microbiome in premature infants and stability during rhinovirus infection. J Investig Med 2017; 65:984-990. [PMID: 28363939 DOI: 10.1136/jim-2017-000414] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2017] [Indexed: 12/21/2022]
Abstract
RATIONALE The nasopharyngeal (NP) microbiota of newborns and infants plays a key role in modulating airway inflammation and respiratory symptoms during viral infections. Premature (PM) birth modifies the early NP environment and is a major risk factor for severe viral respiratory infections. However, it is currently unknown if the NP microbiota of PM infants is altered relative to full-term (FT) individuals. OBJECTIVES To characterize the NP microbiota differences in preterm and FT infants during rhinovirus (RV) infection. METHODS We determined the NP microbiota of infants 6 months to ≤2 years of age born FT (n=6) or severely PM<32 weeks gestation (n=7). We compared microbiota composition in healthy NP samples and performed a longitudinal analysis during naturally occurring RV infections to contrast the microbiota dynamics in PM versus FT infants. RESULTS We observed significant differences in the NP bacterial community of PM versus FT. NP from PM infants had higher within-group dissimilarity (heterogeneity) relative to FT infants. Bacterial composition of NP samples from PM infants showed increased Proteobacteria and decreased in Firmicutes. There were also differences in the major taxonomic groups identified, including Streptococcus, Moraxella, and Haemophilus. Longitudinal data showed that these prematurity-related microbiota features persisted during RV infection. CONCLUSIONS PM is associated with NP microbiota changes beyond the neonatal stage. PM infants have an NP microbiota with high heterogeneity relative to FT infants. These prematurity-related microbiota features persisted during RV infection, suggesting that the NP microbiota of PM may play an important role in modulating airway inflammatory and immune responses in this vulnerable group.
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Affiliation(s)
- Geovanny F Perez
- Division of Pulmonary and Sleep Medicine, Children's National Health System, Washington, DC, USA.,Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,Department of Integrative Systems Biology, George Washington University, Washington, DC, USA.,Center for Genetic Medicine Research, Children's National Health System, Washington, DC, USA
| | - Marcos Pérez-Losada
- Center for Genetic Medicine Research, Children's National Health System, Washington, DC, USA.,Computational Biology Institute, George Washington University, Ashburn, Virginia, USA.,CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
| | - Natalia Isaza
- Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,Division of Neonatology, Children's National Medical Center, Washington, DC, USA
| | - Mary C Rose
- Division of Pulmonary and Sleep Medicine, Children's National Health System, Washington, DC, USA.,Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,Department of Integrative Systems Biology, George Washington University, Washington, DC, USA.,Center for Genetic Medicine Research, Children's National Health System, Washington, DC, USA.,Department of Biochemistry and Molecular Medicine, George Washington University, Washington, DC, USA
| | - Anamaris M Colberg-Poley
- Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,Department of Integrative Systems Biology, George Washington University, Washington, DC, USA.,Center for Genetic Medicine Research, Children's National Health System, Washington, DC, USA.,Department of Biochemistry and Molecular Medicine, George Washington University, Washington, DC, USA
| | - Gustavo Nino
- Division of Pulmonary and Sleep Medicine, Children's National Health System, Washington, DC, USA.,Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.,Department of Integrative Systems Biology, George Washington University, Washington, DC, USA.,Center for Genetic Medicine Research, Children's National Health System, Washington, DC, USA
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5
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Le Grognec E, Chrétien JM, Zammattio F, Quintard JP. Methodologies Limiting or Avoiding Contamination by Organotin Residues in Organic Synthesis. Chem Rev 2015; 115:10207-60. [DOI: 10.1021/acs.chemrev.5b00196] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Erwan Le Grognec
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jean-Mathieu Chrétien
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Françoise Zammattio
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jean-Paul Quintard
- Chimie Et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230,
Faculté des Sciences et des Techniques, Université de Nantes, CNRS, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
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