Acetic acid 1-furan-3-yl-2-((4'R,4'aS,7'R,8'S,8'aS)-4',4'a,7',8'-tetramethyl-octahydro-spiro[[1,3]dioxolane-2,2'-naphthalen]-8'-yl)-ethyl ester 在
氨 、
lithium 作用下,
以74%的产率得到(4'R,4'aS,7'R,8'S,8'aR)-8'-(2-Furan-3-yl-ethyl)-4',4'a,7',8'-tetramethyl-octahydro-spiro[[1,3]dioxolane-2,2'-naphthalene]