Trifluoroacetic acid → HCID 86699588, compound

Participants

Reaction Steps

To a solution of N,N,N-tributylbutan-1-aminium ({[(2S,5R)-2-({[1-(tert-butoxycarbonyl)piperidin-4-yl]oxy}carbamoyl)-7-oxo-1,6-diazabicyclo[3.2.1]oct-6-yl]oxy}sulfonyl)oxidanide 30 (0.64 g, 0.89 mmol) in DCM (36 mL) was added trifluoroacetic acid (1.78 mL, 23.1 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)-7-oxo-N-(piperidin-4-yloxy)-6-(sulfooxy)-1,6-diazabicyclo[3.2.1]octane-2-carboxamide Compound 6 (Table 1) (0.08 g, 25%) as a white solid.

Provenance & Evidence