Hydrogen Peroxide → HCID 59287354, compound

Participants

Reaction Steps

Following the procedure described in EXAMPLE 95, Step B, 0.214 g of (4R)-4-benzyl-3-{(2S,3R)-3-hydroxy-3-[2-iodo-5-(trifluoromethyl)phenyl]-2-methylpropanoyl}-1,3-oxazolidin-2-one, 0.034 g of lithium hydroxide, 0.16 mL of a 30% aqueous solution of hydrogen peroxide, 0.1 mL of diphenylphosphoryl azide, and 0.072 mL of triethylamine provide the title compound. Mass spectrum (ESI) 372.1 (M+1). 1H NMR (500 MHz, CDCl3): δ 8.02 (d, J=8 Hz, 1H), 7.61 (d, J=1.5 Hz, 1H), 7.32 (dd, J=2 Hz, 8 Hz, 1H), 6.16 (s, 1H), 5.39 (d, J=4 Hz, 1H), 3.76 (dq, J=6 Hz, 4.5 Hz, 1H), 1.62 (d, J=6 Hz, 3H). Analytical HPLC on Chiralpak AD 4.6×250 mm, eluting with 4% ethanol in heptane at 0.75 mL/min (tR=21.56 min for R,R; tR=18.00 min for S,S) showed 99% e.e.

Provenance & Evidence