(4aR,5S,8R,8aR,9aR)-4a,5,6,7,8,8a,9,9a-octahydro-8,8a-dihydroxy-9a-methoxy-3,4a,5-trimethylnaphtho[2,3-b]furan-2(4H)-one 、
乙酸酐 在
吡啶 作用下,
反应 24.0h,
以84%的产率得到(4aR,5S,8R,8aR,9aR)-2,4,4a,5,6,7,8,8a,9,9a-decahydro-8a-hydroxy-9a-methoxy-3,4a,5-trimethyl-2-oxonaphtho[2,3-b]furan-8-yl acetate