Toluene-4-sulfonic acid (2R,3R,4R,5R,6S)-2-aminomethyl-5-benzyloxycarbonylamino-3-hydroxy-6-methoxy-tetrahydro-pyran-4-yl ester 在
lithium aluminium tetrahydride 、
sodium carbonate 、
potassium carbonate 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
生成
[(2S,3R,4R,6S)-6-(tert-Butoxycarbonylamino-methyl)-4-hydroxy-2-methoxy-tetrahydro-pyran-3-yl]-carbamic acid benzyl ester