3-Dimethylhydrazono-1,1,1-trifluoro-2-propanone as a Useful Synthetic Equivalent of Trifluoropyruvaldehyde — Application to Synthesis of Fluorine-containing Heterocycles
摘要:
3-Dimethylhydrazono-1,1,1-trifluoro-2-propanone (4) which is easily obtainable from formaldehyde dimethylhydrazone and trifluoroacetic anhydride was found to be an usuful synthetic equivalent of trifluoropyruvaldehyde for the synthesis of fluorine-containing heterocycles. With the use of 4, 4-trifluoromethylimidazoles and 2-trifluoromethylquinoxaline were successfully synthesized.
BENZIMIDAZOLE COMPOUNDS AND USE THEREOF FOR TREATING ALZHEIMER'S DISEASE OR HUNTINGTON'S DISEASE
申请人:National Health Research Institutes
公开号:US20200071312A1
公开(公告)日:2020-03-05
Benzimidazole compounds of formula (I), shown below, are disclosed. The compounds are potent human glutaminyl cyclase inhibitors. Also disclosed is a pharmaceutical composition containing one of these compounds and a pharmaceutical acceptable carrier, as well as a method of treating Alzheimer's disease or Huntington's disease by administering to a subject in need thereof an effective amount of such a compound.
HETEROCYCLIC COMPOUND INTERMEDIATE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
申请人:Wuhan LL Science And Technology
Development Co., Ltd.
公开号:EP3889154A1
公开(公告)日:2021-10-06
Disclosed by the invention is a heterocyclic compound, an intermediate, and a preparation method therefor and an application thereof. Provided by the invention are a heterocyclic compound as shown in formula I, and a stereoisomer, a geometric isomer, a tautomer, a nitrogen oxide, a hydrate, a solvate, a metabolite, an ester, a pharmaceutically acceptable salt or a prodrug thereof. The heterocyclic compound hasa high P2X3 antagonistic activity, and has good selectivity, low toxicity, good metabolic stability and little taste influence.
本发明公开了一种杂环化合物、一种中间体及其制备方法和应用。本发明提供了一种如式 I 所示的杂环化合物及其立体异构体、几何异构体、同分异构体、氧化氮、水合物、溶液、代谢物、酯、药学上可接受的盐或原药。该杂环化合物具有很高的 P2X3 拮抗活性,并且选择性好、毒性低、代谢稳定性好、味道影响小。
Macrocyclic broad spectrum antibiotics
申请人:RQX PHARMACEUTICALS, INC.
公开号:US11072635B2
公开(公告)日:2021-07-27
Provided herein are antibacterial compounds, wherein the compounds in some embodiments have broad spectrum bioactivity. In various embodiments, the compounds act by inhibition of bacterial type 1 signal peptidase (SpsB), an essential protein in bacteria. Pharmaceutical compositions and methods for treatment using the compounds described herein are also provided.
[EN] HETEROCYCLIC COMPOUND INTERMEDIATE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF<br/>[FR] INTERMÉDIAIRE DE COMPOSÉ HÉTÉROCYCLIQUE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 杂环类化合物、中间体、其制备方法及应用