methyl 4-O-benzoyl-6-bromo-6-deoxy-2-O-p-tolylsulfonyl-α-D-glucopyranoside 、 alkaline earth salt of/the/ methylsulfuric acid 在
偶氮二异丁腈 作用下,
以
甲苯 为溶剂,
以74%的产率得到Benzoic acid (2R,3S,4S,5R,6S)-2-but-3-enyl-4-hydroxy-6-methoxy-5-(toluene-4-sulfonyloxy)-tetrahydro-pyran-3-yl ester