Synthesis of Amoxicillin Inpurity L

Received Date: 26 September 2016
Revised Date: 31 October 2016
Accepted Date: 5 December 2016

Fund Project: the National Natural Science Foundation of China 21402182Jilin Province and Chinese Academy of Sciences Cooperated High-tech Industrialization Special Fund Project 2017SYHZ0014

Figures(1)

Amoxicillin is a β-lactam antibiotic used for the treatment of a number of bacterial infections. It is on the World Health Organization's List of Essential Medicines, and one of the most important medications needed in a basic health system. The insufficient sources of its impurity L, i.e., (2S, 5R, 6R)-6-((2S, 5R, 6R)-6-((R)-2-amino-2-(4-hydroxyphenyl)acetamido)-3, 3-dime-thyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxamido)-3, 3-dimethyl-7-oxo-4-thia-1-azabicy-clo[3.2.0]heptane-2-carboxylic acid(6-APA amoxicilin amide), affect the quality control of the product. Herein, the first synthesis of amoxicillin impurity L, was reported by using a simple and efficient method. The starting materials of 6-aminopenicilanic acid and amoxycillin trihydrate were converted to intermediate compounds 3 and 6 through three-step and one-step reactions, respectively. By using benzotriazole-1-yl-oxytripyrrolidinophosphonium hexafluorophosphate(PyBOP) as peptide coupling reagent, we successfully synthesized key intermediate 7 from compounds 3 and 6 in 76% yield, which was subsequently transformed to 6-APA amoxicillin amide by fully deprotection of benzyl and two carbobenzyloxy(Cbz) protecting groups. This method not only increases the source of the standard substance for quality control of amoxicillin, but also provides inspiration for novel β-lactam antibiotic and antiallergic research.
1. [1]
  Liangzhen Hu , Li Ni , Ziyi Liu , Xiaohui Zhang , Bo Qin , Yan Xiong . A Green Chemistry Experiment on Electrochemical Synthesis of Benzophenone. University Chemistry, 2024, 39(6): 350-356. doi: 10.3866/PKU.DXHX202312001
2. [2]
  Renxiu Zhang , Xin Zhao , Yunfei Zhang . Application of Electrochemical Synthesis in the Teaching of Organic Chemistry. University Chemistry, 2025, 40(4): 174-180. doi: 10.12461/PKU.DXHX202406116
3. [3]
  Fei Liu , Dong-Yang Zhao , Kai Sun , Ting-Ting Yu , Xin Wang . Comprehensive Experimental Design for Photochemical Synthesis, Analysis, and Characterization of Seleno-Containing Medium-Sized N-Heterocycles. University Chemistry, 2024, 39(3): 369-375. doi: 10.3866/PKU.DXHX202309047
4. [4]
  Tingting Yu , Si Chen , Lianglong Sun , Tongtong Shi , Kai Sun , Xin Wang . Comprehensive Experimental Design for the Photochemical Synthesis, Analysis, and Characterization of Difluoropyrroles. University Chemistry, 2024, 39(11): 196-203. doi: 10.3866/PKU.DXHX202401022
5. [5]
  Lutian Zhao , Yangge Guo , Liuxuan Luo , Xiaohui Yan , Shuiyun Shen , Junliang Zhang . Electrochemical Synthesis for Metallic Nanocrystal Electrocatalysts: Principle, Application and Challenge. Acta Physico-Chimica Sinica, 2024, 40(7): 2306029-0. doi: 10.3866/PKU.WHXB202306029
6. [6]
  Li Jiang , Changzheng Chen , Yang Su , Hao Song , Yanmao Dong , Yan Yuan , Li Li . Electrochemical Synthesis of Polyaniline and Its Anticorrosive Application: Improvement and Innovative Design of the “Chemical Synthesis of Polyaniline” Experiment. University Chemistry, 2024, 39(3): 336-344. doi: 10.3866/PKU.DXHX202309002
7. [7]
  Caixia Lin , Zhaojiang Shi , Yi Yu , Jianfeng Yan , Keyin Ye , Yaofeng Yuan . Ideological and Political Design for the Electrochemical Synthesis of Benzoxathiazine Dioxide Experiment. University Chemistry, 2024, 39(2): 61-66. doi: 10.3866/PKU.DXHX202309005
8. [8]
  Yang Chen , Peng Chen , Yuyang Song , Yuxue Jin , Song Wu . Application of Chemical Transformation Driven Impurity Separation in Experiments Teaching: A Novel Method for Purification of α-Fluorinated Mandelic Acid. University Chemistry, 2024, 39(6): 253-263. doi: 10.3866/PKU.DXHX202310077
9. [9]
  Li'na ZHONG , Jingling CHEN , Qinghua ZHAO . Synthesis of multi-responsive carbon quantum dots from green carbon sources for detection of iron ions and L-ascorbic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 709-718. doi: 10.11862/CJIC.20240280
10. [10]
  Kexin Yan , Zhaoqi Ye , Lingtao Kong , He Li , Xue Yang , Yahong Zhang , Hongbin Zhang , Yi Tang . Seed-Induced Synthesis of Disc-Cluster Zeolite L Mesocrystals with Ultrashort c-Axis: Morphology Control, Decoupled Mechanism, and Enhanced Adsorption. Acta Physico-Chimica Sinica, 2024, 40(9): 2308019-0. doi: 10.3866/PKU.WHXB202308019
11. [11]
  Yongzhi LI , Han ZHANG , Gangding WANG , Yanwei SUI , Lei HOU , Yaoyu WANG . A two-dimensional metal-organic framework for the determination of nitrofurantoin and nitrofurazone in aqueous solution. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 245-253. doi: 10.11862/CJIC.20240307
12. [12]
  Cunming Yu , Dongliang Tian , Jing Chen , Qinglin Yang , Kesong Liu , Lei Jiang . Chemistry “101 Program” Synthetic Chemistry Experiment Course Construction: Synthesis and Properties of Bioinspired Superhydrophobic Functional Materials. University Chemistry, 2024, 39(10): 101-106. doi: 10.12461/PKU.DXHX202408008
13. [13]
  Xiangyu CAO , Jiaying ZHANG , Yun FENG , Linkun SHEN , Xiuling ZHANG , Juanzhi YAN . Synthesis and electrochemical properties of bimetallic-doped porous carbon cathode material. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 509-520. doi: 10.11862/CJIC.20240270
14. [14]
  Tinghui AN , Dong XIANG , Jiaqi LI , Jiawei WANG , Shuming YU , Nan WANG , Kedi CAI . Research progress on the application of laser synthesis technology for electrochemical functional materials. Chinese Journal of Inorganic Chemistry, 2025, 41(9): 1731-1754. doi: 10.11862/CJIC.20240412
15. [15]
  Bingliang Li , Yuying Han , Dianyang Li , Dandan Liu , Wenbin Shang . One-Step Synthesis of Benorilate Guided by Green Chemistry Principles and in vivo Dynamic Evaluation. University Chemistry, 2024, 39(6): 342-349. doi: 10.3866/PKU.DXHX202311070
16. [16]
  Aidang Lu , Yunting Liu , Yanjun Jiang . Comprehensive Organic Chemistry Experiment: Synthesis and Characterization of Triazolopyrimidine Compounds. University Chemistry, 2024, 39(8): 241-246. doi: 10.3866/PKU.DXHX202401029
17. [17]
  Jia-He Li , Yu-Ze Liu , Jia-Hui Ma , Qing-Xiao Tong , Jian-Ji Zhong , Jing-Xin Jian . 洛芬碱衍生物的合成、化学发光与重金属离子检测. University Chemistry, 2025, 40(6): 230-237. doi: 10.12461/PKU.DXHX202407080
18. [18]
  Cun WANG , Shaohan XU , Yuqian ZHANG , Yaoyao ZHANG , Tao GONG , Rong WEN , Yuhang LIAO , Yanrong REN . Terbium complex electrochemiluminescent emitters: Synthesis and application in the detection of epinephrine. Chinese Journal of Inorganic Chemistry, 2025, 41(7): 1351-1360. doi: 10.11862/CJIC.20240427
19. [19]
  Wenxu Liu , Feng Han , Boxuan Wang , Huayi Liu , Xiaobin Gu , Xin Zhang , Yao Liu . Comprehensive Chemical Experiment: Design, Synthesis, and Photoelectronic Properties Study of Fully Non-Fused Ring Electron Acceptors. University Chemistry, 2025, 40(10): 263-275. doi: 10.12461/PKU.DXHX202412021
20. [20]
  Guangnan SHAN , Yuhui WANG , Yueru WU . Preparation and electrochemical performance of α-MnO₂ electrode material for aqueous zinc ion battery. Chinese Journal of Inorganic Chemistry, 2026, 42(3): 479-487. doi: 10.11862/CJIC.20250292

Get Citation

PDF

XML

Metrics

PDF Downloads(7)
Abstract views(2119)
HTML views(217)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return