86386-76-7Relevant articles and documents
Voriconazole synthesis process
-
Paragraph 0074-0077, (2021/09/08)
The invention discloses a synthesis process of voriconazole bulk drug, which comprises the following steps: preparing halogenated ethyl fluorouracil and carrying out Grignard reaction. 2 - (2, 4 - Difluorophenyl) -3 - (1, 2, 4 - triazol -1 -yl) -1, 2 - propylene glycol was oxidized to give a propylene oxide compound. The Grignard reagent and the propylene oxide compound are mixed and reacted to obtain voriconazole. To the synthesis process, the reaction steps can be simplified, the dehydrochlorination and hydrogenolysis of palladium carbon are not needed, the reaction period is shortened, and furthermore, the energy consumption is reduced, the cost is reduced, and voriconazole and the racemate thereof are obtained with higher yield.
TRIAZOLE DERIVATIVES WITH ANTIFUNGAL ACTIVITY
-
Paragraph 00294, (2021/08/14)
Disclosed are compounds of the formula (I) and pharmaceutically acceptable salts thereof, wherein R1, R2, Q2, L1 and n are as defined herein. The compounds have antifungal properties and are useful in the treatment of fungal infections, including infections that are resistant to conventions anti-fungal agents. Q1 is selected from: (Formulae Ia, Ib, Ic, Id, Ie, If, Ig, Ih, Ii, Ij and Ik) wherein * indicates the point of attachment to L1.
Antibacterial drug and preparation method thereof
-
, (2020/06/20)
The invention discloses an antibacterial drug. The antibacterial drug is 2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-3-(1H-1,2,3,4-tetrazol-1-yl)-2-propanol, the compound is obtained by modifyingfluconazole and introducing a tetrazole ring. Compared with fluconazole, the compound has wider antimicrobial activity spectrum. The invention also discloses a preparation method of the antibacterialdrug. The method comprises the step of introducing the tetrazole ring to obtain 2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-3-(1H-1,2,3,4-tetrazol-1-yl)-2-propanol on the basis of retaining moststructures with drug effects on fluconazole.