racemic methyl 5-aminotetrahydro-2H-pyran-2-carboxylate hydrochloride 、
溴甲苯 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
以76 %的产率得到methyl 2,6-anhydro-3,4,5-trideoxy-5-(dibenzylamino)-L-erythro-hexonate Methyl 2,6-anhydro-3,4,5-trideoxy-5-(dibenzylamino)-L-erythro-hexonate