3-[(1S,2S,4aR,6S,8aS)-2,6-dimethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalene-1-carbonyl]-5-[(1R,4R)-4-[tert-butyl(dimethyl)silyl]oxycyclohex-2-en-1-yl]-4-hydroxy-1-[(4-methoxyphenyl)methoxy]pyridin-2-one 在
copper bis(oxazoline) 、 tert-butylperoxy-4-nitrobenzoate 作用下,
以
丙酮 为溶剂,
以44%的产率得到3-[(1S,2S,4aR,6S,8aS)-2,6-dimethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalene-1-carbonyl]-5-[(1R,4R)-4-[tert-butyl(dimethyl)silyl]oxycyclohex-2-en-1-yl]-4-hydroxy-1H-pyridin-2-one