(1R,4R,4aR,5R,7aS)-5-(2,2-dimethyl-1-oxopropoxy)-7-[(2,2-dimethyl-1-oxopropoxy)methyl]-1,3,4,4a,5,7a-hexahydro-4-iodo-3-oxocyclopenta[c]pyran-1-yl 2,3,4,6-tetrakis-O-(2,2-dimethyl-1-oxopropyl)-β-D-glucopyranoside 在
potassium carbonate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 2.0h,
生成 methyl (1R,3R,3aS,6R,6aR)-6-(2,2-dimethyl-1-oxopropoxy)-4-[(2,2-dimethyl-1-oxopropoxy)methyl]-3,3a,6,6a-tetrahydro-3-methoxy-1H-cyclopenta[1,2-c]furan-1-carboxylate 、 methyl (1R,3S,3aS,6R,6aR)-6-(2,2-dimethyl-1-oxopropoxy)-4-[(2,2-dimethyl-1-oxopropoxy)methyl]-3,3a,6,6a-tetrahydro-3-methoxy-1H-cyclopenta[1,2-c]furan-1-carboxylate 、 methyl (1S,3R,3aS,6R,6aR)-6-(2,2-dimethyl-1-oxopropoxy)-4-[(2,2-dimethyl-1-oxopropoxy)methyl]-3,3a,6,6a-tetrahydro-3-methoxy-1H-cyclopenta[1,2-c]furan-1-carboxylate 、 methyl (1S,3S,3aS,6R,6aR)-6-(2,2-dimethyl-1-oxopropoxy)-4-[(2,2-dimethyl-1-oxopropoxy)methyl]-3,3a,6,6a-tetrahydro-3-methoxy-1H-cyclopenta[1,2-c]furan-1-carboxylate