Scheme 3.
Synthesis of the Arylsulfonamide Scaffolda
aReagents and conditions: (a) 60% NaH, THF, 0 °C to 25 °C, 30–96%; (b) 2 N LiOH/H2O, MeOH/H2O, 25 °C, 66%.
Synthesis of the Arylsulfonamide Scaffolda
aReagents and conditions: (a) 60% NaH, THF, 0 °C to 25 °C, 30–96%; (b) 2 N LiOH/H2O, MeOH/H2O, 25 °C, 66%.