Acetic acid (1S,2R,4S,5R,6S,7R)-7-cyano-7-(dimethoxy-phosphoryl)-3-oxa-tricyclo[3.2.1.02,4]oct-6-yl ester 在
sodium tetrahydroborate 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
以75%的产率得到((1S,2S,3S,5S,6R)-6-Cyano-2-hydroxy-3-hydroxymethyl-bicyclo[3.1.0]hex-6-yl)-phosphonic acid dimethyl ester