64473-40-1Relevant academic research and scientific papers
A Convenient One-Pot Synthesis of 1,5-Disubstituted Tetrazoles Containing an Amino or a Carboxy Group
Obushak, M. D.,Pokhodylo, N. T.,Shyyka, O. Ya.
, p. 802 - 812 (2020/07/03)
Abstract: A convenient method is proposed for constructing the tetrazole ring by a one-pot reaction of amides with phosphorus oxychloride and sodium azide. A series of 1,5-disubstituted tetrazoles containing an amino or a carboxy group, which present interest as buildings blocks for the synthesis of biologically active substances, were obtained.
Synthesis of 2-(1-aryl-1H-tetrazol-5-yl)-thieno[2,3-b]pyridine derivatives
Koltsov, Nikolai Yu.
, p. 768 - 772 (2019/09/06)
[Figure not available: see fulltext.] Alkylation of 4,6-dimethyl-2-sulfanylpyridine-3-carbonitrile with 1-aryl-5-(chloromethyl)-1H-tetrazoles yielded 2-{[(1-aryl-1H-tetrazol-5-yl)methyl]sulfanyl}-4,6-dimethylpyridine-3-carbonitriles, which easily cyclize
Transition-metal-free multinitrogenation of amides by C-C bond cleavage: A new approach to tetrazoles
Li, Lian-Hua,Li, Ying-Xiu,Liang, Yong-Min,Niu, Zhi-Jie
supporting information, p. 11148 - 11151 (2020/04/22)
A metal-free brand-new one-pot multinitrogenation of amides for the chemo- A nd regioselective synthesis of 1,5-disubstituted tetrazoles has been developed. By means of electrophilic amide activation, and further C-C bond cleavage and rearrangement, a diverse set of functionalized 1,5-DST derivatives were selectively constructed under mild conditions. As showcased in the mechanisms, the chemoselectivity is easily switched by the selection of the starting materials in the reaction.
Improved Potency of Indole-Based NorA Efflux Pump Inhibitors: From Serendipity toward Rational Design and Development
Buonerba, Federica,Lepri, Susan,Goracci, Laura,Schindler, Bryan D.,Seo, Susan M.,Kaatz, Glenn W.,Cruciani, Gabriele
supporting information, p. 517 - 523 (2017/04/26)
The NorA efflux pump is a potential drug target for reversal of resistance to selected antibacterial agents, and recently we described indole-based inhibitor candidates. Herein we report a second class of inhibitors derived from them but with significant differences in shape and size. In particular, compounds 13 and 14 are very potent inhibitors in that they demonstrated the lowest IC50 values (2 μM) ever observed among all indole-based compounds we have evaluated.
Convergent Three-Component Tetrazole Synthesis
Chandgude, Ajay L.,D?mling, Alexander
, p. 2383 - 2387 (2016/06/01)
A microwave-accelerated, simple, and efficient method for the construction of the 1,5-tetrazole scaffold was developed. It comprises a multicomponent reaction of an amine, a carboxylic acid derivative, and an azide source. On the basis of the availability of the archetypical starting materials, this method provided very versatile synthetic access to 1,5-disubstituted tetrazoles. The usefulness of this method was demonstrated in the synthesis of biologically important fused tetrazole scaffolds and the marketed drug cilostazol.
