Trifluoroacetic acid → HCID 57562521, compound

Participants

Reaction Steps

Trifluoroacetic acid (2.0 mL) was added to a solution of tert-butyl (2S,6S)-4-(cyclopropylmethyl)-5-oxo-2-phenyl-1,4-thiazepan-6-ylcarbamate (90 mg, 0.239 mmol) in dichloromethane (5 mL). After 1 h, the mixture was concentrated and aqueous saturated sodium bicarbonate was added. The mixture was extracted with dichloromethane (2×), and the combined organic extracts were dried over magnesium sulfate, filtered, and concentrated to give the crude product (57 mg). 1H NMR (500 MHz, CDCl3) □ 7.38-7.30 (m, 5H), 4.36-4.28 (m, 2H), 4.06 (d, J=9.3 Hz, 1H), 3.74 (dd, J=14.4, 1.5 Hz, 1H), 3.67 (dd, J=13.9, 7.3 Hz, 1H), 3.08 (dd, J=13.9, 6.6 Hz, 1H), 3.00 (dd, J=14.4, 9.8 Hz, 1H), 2.66 (dd, J=14.4, 1.9 Hz, 1H), 1.02-0.99 (m, 1H), 0.57-0.53 (m, 2H), 0.27-0.23 (m, 2H).

Provenance & Evidence