云南高校图书馆联盟文献共享服务平台- N-METHYLATION

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TAG-Assisted Liquid-Phase Synthesis and Structure Activity Relationship of Macolacin-Based Side-to-Tail Cyclopeptides Antibiotic: 《Chinese Journal of Chemistry》2024年第22期2728-2742,共15页Haidi Li Yuankui Jin Minfan Pei Linyan Zhang Lianjun Wang Yuxin Yang Peng Xiang Taigang Liang; supported by the Shanxi Provincial Key Research and Development Project(202102130501004).; TAG-assisted peptide synthesis technology enables optimal conservation of Fmoc amino acid raw materials and chemical solvents while eliminating the need for intricate chromatographic purification processes.This work p...; 关键词：Macolacin N-Methylation-modified Cyclopeptide antibiotics Antimicrobial activity Structure-activity relationship TAG-assisted peptide synthesis Peptide Antimicrobial agents

Boron-Promoted Co-Catalyzed N-Methylation of Secondary Aromatic Amines with CO_(2) and H_(2): 《有机化学》2024年第10期3233-3240,共8页Shi Qin Li Zhen He Lin Li Yudong Li Yuehui; 国家自然科学基金(Nos.22022204,22102197);江苏省国家自然基金(Nos.BK20211096,BK20211093)资助项目.; Development of catalytic methods using CO_(2)/H_(2) as methylating reagent for selective methylation of amines is highly attractive.Herein,the methylation of N—H bond via boron promoted activation of Co-formate inter...; 关键词：CO_(2)/H_(2) N-METHYLATION cobalt catalysis

N-methylation of histidine to tune tautomeric preferences in histidine-heme coordination and enzyme-mimetic catalysis: 《Smart Molecules》2024年第3期139-145,共7页Ruikai Du Yunbo Lv Haifeng Wu Baoli Zhang Yuanxi Liu Shichao Xu Shan Li Zhen-Gang Wang; supported by the National Natural Science Foundation of China(No.52173194);Beijing Natural Science Foundation(No.2232017);Fundamental Research Funds for the Central Universities(No.buctrc201902).; Enzymes with active sites involving histidine selectively utilize either theδ-orε-nitrogen atom(N_(δ)or N_(ε))of the histidine imidazole for catalysis.However,evaluating the impact of N_(δ)and N_(ε)is difficult,...; 关键词：heme-dependent enzyme HISTIDINE self-assembly tautomeric preference

Selective N-Methylation of N-Methylaniline with CO_(2) and H_(2) over Cu/In_(2)O_(3) Catalyst: 《Chinese Journal of Chemistry》2024年第3期276-282,共7页Huan Zheng Bo Qian Lin He; N-Methylation of amines with CO_(2) and H2 is a potential approach for CO_(2) utilization because N-methylated amines can be used as solvents and organic intermediates. In_(2)O_(3)-supported Cu (Cu/In_(2)O_(3)) acts a...; 关键词：N-METHYLATION CO_(2) Cu/In_(2)O_(3) Supported catalysts Heterogeneous catalysis

Zwitterionic cellular polymer enabled reductive fixation of CO_(2) for N-methylation of amines: 《Green Synthesis and Catalysis》2023年第4期342-349,共8页Wenfeng Zhao Hu Li Hang Cong Hongguo Wu Ping Zhu Song Yang; This study was financially supported by the Guizhou Provincial S&T Project(Nos.ZK[2022]011 and 2018[4007]);the National Natural Science Foundation of China(No.21908033);the Fok Ying-Tong Education Foundation(161030).; Using heterogeneous catalysts to promote the construction of the C–N bond between amines and CO_(2) under mild conditions is a challenge yet.Herein,we synthesized a novel zwitterionic polymer(PDDC)with a cellular str...; 关键词：CO_(2)utilization Porous polymer Zwitterionic ion N-METHYLATION Heterogeneous catalysis

Air-tolerant direct reductive N-methylation of amines using formic acid via simple inorganic base catalysis: 《Chinese Chemical Letters》2020年第1期111-114,共4页Yan Huang Wei Deng Bo-Lin Lin; financial support by the National Natural Science Foundation of China (No.U1532135); The construction of N-methyl amine moieties is an important reaction that has found numerous applications.Development of new methylation agents that are more environmentally benign than classical agents,such as iodome...; 关键词：Air tolerant N-METHYLATION Formic acid Simple inorganic bas Transition-metal-free

Scalable direct N-methylation of drug-like amines using 12CO2/13CO2 by simple inorganic base catalysis: 《Science Bulletin》2019年第11期723-729,共7页Chunlei Lua Zetian Qiu Yiling Zhu Bo-Lin Lin; supported by the National Natural Science Foundation of China(U1532135); With the growing urgency of potential catastrophic climate changes due to anthropogenic CO2 emissions,numerous efforts have been devoted to development of synthetic protocols using CO2 as a building block in organic r...; 关键词：N-METHYLATION Sabatier principle 12CO2/13CO2 Drug-like AMINES INORGANIC base CATALYSIS

N-methylation of quinolines with CO2 and H2 catalyzed by Ru-triphos complexes被引量：2: 《Science China Chemistry》2017年第7期927-933,共7页Zhenhong He Huizhen Liu Qingli Qian Lu Lu Weiwei Guo Lujun Zhang Buxing Han; supported by National Natural Science Foundation of China(21603235,21373234,21533011);Chinese Academy of Sciences(QYZDY-SSW-SLH013);the Recruitment Program of Global Youth Experts of China; N-methyl-tetrahydroquinolines(MTHQs) are a kind of very useful chemicals, which can be obtained from N-methylation of amines.However, the methylation of quinolines which is a kind of highly unsaturated nitrogen-contai...; 关键词：methylation hydrogenation quinoline derivatives carbon dioxide homogeneous catalysis

Indole methylation protects diketopiperazine configuration in the maremycin biosynthetic pathway被引量：3: 《Science China Chemistry》2016年第9期1224-1228,共5页Yingxia Lan Yi Zou Tingting Huang Xiaozheng Wang Nelson L. Brock Zixin Deng Shuangjun Lin; supported by the National Natural Science Foundation of China (NNSFC, 31425001 and 31070057 for SL);the Leopoldina Fellowship Program (German National Academy of Sciences Leopoldina, LPDS 2013-12 for NLB); The maremycin biosynthetic gene cluster has been identified in Streptomyces sp. B9173. Comparative metabolic profiling with knockout mutant strains led to the identification of new products correlated to the maremycin...; 关键词：BIOSYNTHESIS maremycin N-METHYLATION METHYLTRANSFERASE EPIMERIZATION

Investigation of the By-products Formed during the Catalytic Synthesis of 4,4＇-Methylenedimethyldiphenylcarbamate被引量：5: 《Chinese Journal of Chemistry》2007年第7期888-891,共4页邱泽刚王军威亢茂青李其峰杜辉王心葵; The structures of the by-products formed during the catalytic synthesis of 4,4＇-methyldiphenylcarbamate （MDC） by the reaction of 4,4＇-methylenedianiline （MDA） with dimethyl carbonate （DMC） were identified and ...; 关键词：4 4＇-methylenedianiline dimethyl carbonate zinc acetate arbamate N-methylation methylenedianiline

N-METHYLATION