(1R,2R,3R,4S,4aR,7S,8aR)-2,4-Bis-benzyloxy-5-(1-hydroxy-ethyl)-3-methyl-1,2,3,4,4a,7,8,8a-octahydro-naphthalene-1,7-diol 在
sodium tetrahydroborate 、 mercuric trifluoroacetate 作用下,
生成
(S)-1-((1S,3R,4R,5R,6R,7S,8R)-4,6-Bis-benzyloxy-5-methyl-2-oxa-tricyclo[5.4.0.03,8]undec-10-en-1-yl)-ethanol 、
(R)-1-((1S,3R,4R,5R,6R,7S,8R)-4,6-Bis-benzyloxy-5-methyl-2-oxa-tricyclo[5.4.0.03,8]undec-10-en-1-yl)-ethanol