benzyl (3R,3'R,3'aS,4aR,6'S,6aR,6bS,7'aR,9S,12aS,12bS)-3-hydroxy-3',6',11,12b-tetramethylspiro[1,2,3,4,4a,5,6,6a,6b,7,8,10,12,12a-tetradecahydronaphtho[2,1-a]azulene-9,2'-3,3a,5,6,7,7a-hexahydrofuro[3,2-b]pyridine]-4'-carboxylate 在
palladium 10% on activated carbon 、
氢气 作用下,
以
乙酸乙酯 为溶剂,
反应 3.0h,
以73%的产率得到(3R,3'R,3'aS,4aR,6'S,6aR,6bS,7'aR,9S,12aS,12bS)-3',6',11,12b-tetramethylspiro[1,2,3,4,4a,5,6,6a,6b,7,8,10,12,12a-tetradecahydronaphtho[2,1-a]azulene-9,2'-3a,4,5,6,7,7a-hexahydro-3H-furo[3,2-b]pyridine]-3-ol