叔丁氧基 N-氨基甲酸丙烯 、
N-(1-deoxo-2,3:4,6-di-O-isoprpylidene-α-L-xylo-hex-2-ul-1-ylidene)-tert-butylamine N-oxide 以
甲苯 为溶剂,
以17%的产率得到[2-tert-Butyl-3-((3aS,3bR,7aS,8aS)-2,2,5,5-tetramethyl-tetrahydro-[1,3]dioxolo[4,5]furo[3,2-d][1,3]dioxin-8a-yl)-isoxazolidin-5-ylmethyl]-carbamic acid tert-butyl ester