Trifluoroacetic acid → HCID 73386851, compound

Participants

Reaction Steps

To a solution of N,N,N-tributylbutan-1-aminium ({[(2S,5R)-2-({[1-(tert-butoxycarbonyl)azetidin-3-yl]oxy}carbamoyl)-7-oxo-1,6-diazabicyclo[3.2.1]oct-6-yl]oxy}sulfonyl)oxidanide 40 (0.1 g, 0.15 mmol) in DCM (8.8 mL) was added trifluoroacetic acid (0.44 mL, 5.7 mmol) dropwise at 0° C. The reaction mixture was stirred for 1 h, then evaporated. Ether was added to the residue and the resulting white precipitate was collected by centrifugation. The solid was triturated with acetonitrile (2×) and the white solid was collected by centrifugation. The white solid was purified by HPLC and freeze-dried to give (2S,5R)—N-(azetidin-3-yloxy)-7-oxo-6-(sulfooxy)-1,6-diazabicyclo[3.2.1]octane-2-carboxamide Compound 8 (Table 1) (0.01 g, 20%) as a white solid.

Provenance & Evidence