pent-4-enyl 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1->3)-2,4-di-O-acetyl-α-L-rhamnopyranosyl-(1.2)-3,4-di-O-acetyl-α-L-rhamnopyranoside 、
硫代乙酸 在
偶氮二异丁腈 作用下,
以
四氢呋喃 为溶剂,
以97%的产率得到5-thioacetylpentyl 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl-(1->3)-2,4-di-O-acetyl-α-L-rhamnopyranosyl-(1->2)-3,4-di-O-acetyl-α-L-rhamnopyranoside