Ethyl Acetate → HCID 178435578, compound

Participants

Reaction Steps

A mixture of (±)-3-(5'-1-ethyl-2-methylbenzimidazolyl)-5-(iodomethyl)oxazolidin-2-one (XXXVIII, EXAMPLE 69, 0.531 g) and sodium azide (0.618 g) are stirred in acetone/water (2/1, 30 ml) at reflux under a nitrogen overnight. After this time the mixture is poured into ethyl acetate and the layers are separated. The aqueous layer is then extracted with ethyl acetate (2×). All organic layers are combined, dried over magnesium sulfate and concentrated under reduced pressure to give an oil. A small amount of the crude product (oil) is purified on a silica preparative plate (20 cm×20 cm, 1000μ). The plate is eluted in methanol/ethyl acetate (10/90, 5×) to give the title compound as an oil; NMR (CDCl3, 300 MHz) 7.70, 7.53, 7.30, 4.80, 4.15, 3.89, 3.70, 3.60, 2.61 and 3.40 δ; CMR (CDCl3, 75.47 MHz) 13.62, 14.78, 38.62, 48.42, 53.05, 70.60, 109.29, 114.99, 132.1, 132.72, 142.3, 152.8 and 154.9 δ; MS (m/e) 300, 272, 227, 212, 200, 186, 172, 160, 159, 145, 131, 117, 104, 90 and 77; exact mass calcd for C14H16N6O2 =300.1335, found 300.1333.

Provenance & Evidence