PROCESSES FOR THE MANUFACTURE OF 3--PYRIDINE, 4-METHYL-3-METHYLTHIO-5-(3-PYRIDYL)-L,2,4-TRIAZOLE, AND (1R)-1-[2-(3-METHYLPHENYL)-2H-TETRAZOL-5-YL]ETHANOL
申请人:Elfyn Jones
公开号:US20110306768A1
公开(公告)日:2011-12-15
The present invention provides a process for the manufacture of the compound 3-4-methyl-5-[(1R)-1-(2-(3-methylphenyl-2H-tetrazol-5-yl)-ethoxy]-4H-[1,2,4]triazol-3-yl}-pyridine of formula 14 wherein a) the compound 3-(5-methane-sulfonyl-4-methyl-4H-1,2,4-triazol-3-yl)-pyridine of formula 6 and the compound (1R)-[2-(3-methylphenyl)-2H-tetrazol-5-yl]ethanol of formula 13 are dissolved in an aprotic solvent, whereafter an alkoxide base is added, providing the compound of formula 14. The invention also provides methods for manufacturing 3-(5-methanesulfonyl-4-methyl-4H-1,2,4-triazol-3-yl)-pyridine and (1R)-1-[2-(3-methylphenyl)-2H-tetrazol-5-yl]ethanol.
本发明提供了一种制备化合物3-4-甲基-5-[(1R)-1-(2-(3-甲基苯基-2H-四唑-5-基)-乙氧基]-4H-[1,2,4]三唑-3-基}-吡啶的工艺,其中a)将化合物3-(5-甲烷磺酰基-4-甲基-4H-1,2,4-三唑-3-基)-吡啶的化学式6和化合物(1R)-[2-(3-甲基苯基)-2H-四唑-5-基]乙醇的化学式13溶解在无水溶剂中,随后加入碱性醇盐,提供化合物的化学式14。本发明还提供了制备3-(5-甲烷磺酰基-4-甲基-4H-1,2,4-三唑-3-基)-吡啶和(1R)-1-[2-(3-甲基苯基)-2H-四唑-5-基]乙醇的方法。