The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone(SMILESS: FC1=CC=C(C(CN2N=CN=C2)=O)C(F)=C1,cas:86404-63-9) is researched.Related Products of 1762-34-1. The article 《Process Development of Voriconazole: A Novel Broad-Spectrum Triazole Antifungal Agent》 in relation to this compound, is published in Organic Process Research & Development. Let’s take a look at the latest research on this compound (cas:86404-63-9).
In the synthesis of (2R,3S)-2-(2,4-difluorophenyl)-3-(5-fluoro-4-pyrimidinyl)-1-(1H-1,2,4-triazol-1-yl)-2-butanol (voriconazole), the relative stereochem. is set in the addition of a 4-(1-metalloethyl)-5-fluoropyrimidine derivative to 1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)-1-ethanone. The diastereocontrol of this reaction has been examined by variation of pyrimidine substitution pattern and by changes in the metalation and reaction conditions. Excellent diastereoselection (12:1) is obtained using an organozinc derivative of 6-(1-bromoethyl)-4-chloro-5-fluoropyrimidine. After removal of the chlorine from the pyrimidine ring, the absolute stereochem. of voriconazole is established via a diastereomeric salt resolution process using (1R)-10-camphorsulfonic acid. Synthetic routes to the pyrimidine partner have also been evaluated. The initial six-step development route from 5-fluorouracil has been superseded by a four-step synthesis involving fluorination of Me 3-oxopentanoate and cyclization with formamidine acetate.
There is still a lot of research devoted to this compound(SMILES：FC1=CC=C(C(CN2N=CN=C2)=O)C(F)=C1)Quality Control of 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone, and with the development of science, more effects of this compound(86404-63-9) can be discovered.
Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics