Synthesis Route for 1093066-73-9

1093066-74-0
tert-Butyl 4-(3,...
~77%
1093066-73-9
4-(3,3-Difluoroa...

Reference:

F.HOFFMANN-LA ROCHE AG Patent: WO2009/53716 A1, 2009 ; Location in patent: Page/Page column 67-68 ; WO 2009/053716 A1