Acetic acid (R)-6-furan-3-yl-2-oxo-3-[2-((1S,2S,8aR)-1,2,5,5-tetramethyl-1,2,3,5,6,7,8,8a-octahydro-naphthalen-1-yl)-ethyl]-tetrahydro-pyran-4-yl ester 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
氯仿 、
乙酸乙酯 为溶剂,
反应 0.5h,
以6.1 mg的产率得到(R)-6-Furan-3-yl-3-[2-((1S,2S,8aR)-1,2,5,5-tetramethyl-1,2,3,5,6,7,8,8a-octahydro-naphthalen-1-yl)-ethyl]-5,6-dihydro-pyran-2-one