Short-RInChIKey=SA-FUHFF-UHFFFADPSC-ZTJNWVOHDV-UHFFFADPSC-NUHFF-NUHFF-NUHFF-ZZZ

11-azido-3,6,9-trioxaundecan-1-amine (20.0 mg, 91.6 μmol, 18.2 μL) was added to a suspension of K2CO3 (28.5 mg, 206.2 μmol) in 2 mL dry DCM under nitrogen and stirred for 10 minutes. Subsequently, the solution of NBD-chloride (27.4 mg, 137.5 μmol) in 1 mL dry DCM was added and stirred at room temperature for 3 hours under nitrogen.