(R)-2-[(2R,3R,4S,5R,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-6-methoxy-3,5-dimethyl-tetrahydro-pyran-2-yl]-hex-5-en-2-ol 在
对甲苯磺酸 作用下,
以
丙酮 为溶剂,
以61%的产率得到((1R,2R,3S,4R,5R,7R)-7-Allyl-2,4,7-trimethyl-6,8-dioxa-bicyclo[3.2.1]oct-3-yloxy)-tert-butyl-dimethyl-silane