(3S)-5t-hydroxymethyl-3r-(4-methoxy-benzyl)-3-methyl-6c-phenyl-morpholin-2-one; hydrochloride 、
对甲苯磺酰氯 在
吡啶 作用下,
反应 7.0h,
以74%的产率得到(3S,5S,6S)-(-)-3-(4-Methoxybenzyl)-3-methyl-6-phenyl-5-(p-toluolsulfonyloxymethyl)-3,4,5,6-tetrahydro-2H-1,4-oxazin-2-on