3,4-二氢-2H-吡喃 、
(1S,5S,7S,10R)-5-((R)-4-Benzyloxy-1-methyl-butyl)-10-methoxymethoxy-bicyclo[4.3.1]dec-2-en-7-ol 在
DL-10-camphorsulfonic acid 作用下,
以93%的产率得到2-[(1R,5R,7R,10S)-5-((S)-4-Benzyloxy-1-methyl-butyl)-10-methoxymethoxy-bicyclo[4.3.1]dec-2-en-7-yloxy]-tetrahydro-pyran