(5
R)-8
t-benzyloxy-2,2,6
c-trimethyl-(5
rO)-1,3,7-trioxa-spiro[4.4]non-9
c-yl
O4,
O6-isopropylidene-2-methylamino-α-
L-2-deoxy-glucopyranoside 在
sodium hydroxide 、
溶剂黄146 作用下,
以
丙酮 为溶剂,
生成
benzyl O2-(N,O3-carbonyl-2-methylamino-α-L-2-deoxy-glucopyranosyl)-3-hydroxymethyl-α-L-5-deoxy-lyxofuranoside