Trifluoroacetic acid → HCID 71761299, compound

Participants

Reaction Conditions

Reaction Steps

TFA (0.20 mL) was added to a 0° C. mixture of sodium (2S,5R)-2-(5-(1-(tert-butoxycarbonyl)piperidin-4-yl)-1,3,4-thiadiazol-2-yl)-7-oxo-1,6-diaza-bicyclo[3.2.1]octan-6-yl sulfate (50 mg, 0.10 mmol) in dry DCM (0.60 mL). The reaction mixture was stirred at 0° C. for 2-3 hrs and then diluted with ether (−10 mL). The precipitate was collected via centrifugation, washed with ether (3×) and dried under high vacuum to afford (2S,5R)-7-oxo-2-(5-(piperidin-4-yl)-1,3,4-thiadiazol-2-yl)-1,6-diazabicyclo[3.2.1]octan-6-yl hydrogen sulfate (10 mg, 25%) after prep-HPLC using ammonium formate buffer. ESI-MS (EI+, m/z): 390.12.

Provenance & Evidence