(+)-(4R,5S)-4-Methyl-3-[2(R)-phenoxy­propion­yl]-5-phenyl­oxazolidin-2-one

The title compound, C19H19NO4, formed from enanti­o­merically pure (+)-(4R,5S)-4-methyl-5-phenyl-2-oxazolidin­one and racemic 2-phenoxy­propanoyl chloride, crystallises with Z′ = 2. The two carbonyl groups in each mol­ecule are oriented anti to each other, while the two methyl groups are oriented syn to each other.