(+)methyl (4aS,5R,7aS,8R,11aS)-2,4a,5,6,7,7a,8,9,10,11-decahydro-5,7a,8-trimethyl-3-(1-methylethyl)-11-oxo-1H-benzonaphthalyl-4-carboxylate 在
lithium aluminium tetrahydride 作用下,
以
四氢呋喃 、
乙醚 为溶剂,
以100%的产率得到(-) (4aR,5R,7aS,8R,11aS)-2,4a,5,6,7,7a,8,9,10,11-decahydro-11-hydroxy-4-hydroxymethyl-5,7a,8-trimethyl-3-(1-methylethyl)-1H-benzo
naphthalene