3,4,5-trimethyl-4-oxocyclohexa-2,5-dienyl 6-O-acetyl-2-deoxy-2-iodo-3,4-O-(1-methylethylidene)-β-D-galactopyranoside 在
偶氮二异丁腈 、
三正丁基氢锡 作用下,
以
苯 为溶剂,
反应 14.0h,
以74%的产率得到acetic acid (3aR,4R,5aS,6aR,10aR,10bS,10cR)-(3a,5a,6a,9,10,10a,10b,10c-octahydro-2,2,6a,7,10a-pentamethyl-1,3,5,6-tetraoxa-9-oxo-4H-cyclopenta[c]fluoren-4-yl)methyl ester