Improved Synthesis of a Selective COX-2 Inhibitor, 6-(2,4-Difluorophenoxy)-5-methanesulfonamidoindan-1-one (Flosulide)
作者:Chung-Sing Li、Chantal Soucy-Breau、Natalie Ouimet
DOI:10.1055/s-1995-4129
日期:1995.11
An improved synthesis of Flosulide (1), a selective COX-2 inhibitor, from the cheap and commercially available 4-chloro-3-nitrobenzaldehyde (2) by using an intramolecular Friedel-Crafts reaction of 4-(2,4-difluorophenoxy)-3-methanesulfonamidophenylpropionic acid (7) as the key step is reported.
通过将4-(2,4-二氟苯氧基)-3-甲磺酰胺苯丙酸(7)的分子内傅克反应作为关键步骤,从廉价且可商购的4-氯-3-硝基苯甲醛(2)中改进合成选择性COX-2抑制剂氟舒利(1)。