Trifluoroacetic acid → HCID 59997296, compound

Participants

Reaction Conditions

Reaction Steps

To an ice cold solution of tert-Butyl (1S,2R)-3-[(1,3-benzodioxol-5-ylsulfonyl) (1-ethylpropoxy)amino]-1-[4-(benzyloxy)benzyl]-2-hydroxypropylcarbamate (1.5 g, 2.3 mmol) in dichloromethane (15 mL) was added trifluoroacetic acid (10 mL). After stirring at 5° C. for 3 h, the reaction was concentrated in vacuo, taken up in ethyl acetate (80 mL), washed with saturated sodium bicarbonate (2×50 ml), dried (magnesium sulfate) and concentrated in vacuo to afford the title compound (1.27 g, quant.) as an off-white foam. 1H NMR (DMSO-d6): δ 0.77 (6H, dt), 1.07-1.72 (4H, m), 1.82 (2H, br), 2.28 (1H, t), 2.58-3.05 (4H, m), 3.43-3.53 (1H, m), 3.95-4.03 (1H, m), 4.86 (1H, br s), 5.01 (2H, s), 6.16 (2H, s), 6.86 (2H, d), 7.03 (2H, d), 7.12-7.40 (8H, m);

Provenance & Evidence