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34164-90-4

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34164-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34164-90-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,1,6 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 34164-90:
(7*3)+(6*4)+(5*1)+(4*6)+(3*4)+(2*9)+(1*0)=104
104 % 10 = 4
So 34164-90-4 is a valid CAS Registry Number.

34164-90-4Relevant articles and documents

Copper- A nd DMF-mediated switchable oxidative C-H cyanation and formylation of imidazo[1,2-: A] pyridines using ammonium iodide

Ji, Fanghua,Jiang, Guangbin,Li, Xuan,Liu, Meichen,Wang, Shoucai,Zang, Jiawang

, p. 9100 - 9108 (2020/11/27)

The cyanation and formylation of imidazo[1,2-a]pyridines were developed under copper-mediated oxidative conditions using ammonium iodide and DMF as a nontoxic combined cyano-group source and DMF as a formylation reagent. Mechanistic studies indicate that the cyanation of imidazo[1,2-a]pyridines proceeds through a two-step sequence: Initial iodination and then cyanation. The cyanation has a broad substrate scope and high functional group tolerance, and can be safely conducted on a gram scale. A novel copper-mediated formylation using the widely available DMF as the formylation reagent and environmentally friendly molecular oxygen as the oxidant has also been developed. This protocol also provided a convenient approach for the synthesis of clinically used saripidem. This journal is

Design, Synthesis and Biological Evaluation of Imidazo[1,2-a]pyridine Derivatives as Novel DPP-4 Inhibitors

Li, Qing,Zhou, Muxing,Han, Li,Cao, Qing,Wang, Xinning,Zhao, Leilei,Zhou, Jinpei,Zhang, Huibin

, p. 849 - 856 (2015/10/06)

A new series of DPP-4 inhibitors with imidazo[1,2-a]pyridine scaffold were designed by exploiting scaffold hopping strategy and docking study. Based on docking binding model, structural modifications of 2-benzene ring and pyridine moieties of compound 5a led to the identification of compound 5d with 2, 4-dichlorophenyl group at the 2-position as a potent (IC50 = 0.13 μm), selective (DPP-8/DPP-4 = 215 and DPP-9/DPP-4 = 192) and in vivo efficacious DPP-4 inhibitor. Further, molecular docking revealed that compound 5d could retain key binding features of DPP-4 with the pyridine moiety of imidazo[1,2-a]pyridine ring providing an additional π-π interaction with Phe357 of DPP-4. Compound 5d might be a promising lead for further development of novel DPP-4 inhibitor treating T2DM.

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