4-O-(2,3,4,6-tetra-O-acetyl-α-D-galacto-pyranosyl)-2,3,6-tri-O-acetyl-β-D-glucopyranosyl amine 、
2-乙酰基-5,5-二甲基-1,3-环己二酮 以
甲醇 为溶剂,
反应 5.0h,
以to give 4-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-2,3,6-tri-O-acetyl-N-[1-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)ethyl]-β-D-glucopyranosyl amine (27) (106 mg, 54%)的产率得到4-O-(2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl)-2,3,6-tri-O-acetyl-N-[1-(4,4-dimethyl-2,6-dioxocyclohex-1-ylidene)ethyl]-β-D-glucopyranosyl amine