Toluene-4-sulfonic acid (4S,5R)-4-methoxy-3-methyl-2-oxo-4-[(E)-(3-phenyl-acryloyl)]-[1,3]oxazinan-5-yl ester 在
sodium tetrahydroborate 作用下,
以
异丙醇 为溶剂,
反应 0.5h,
以2.5 mg的产率得到(5SR,1'RS)-1-Methyl-3-oxa-4ξ-styryl-5-methoxy-5-(1'-tosyloxy-2'-hydroxyethyl)pyrrolidinone