sodiodimethylmalonate 、
1-[(2R,4S,6S)-4-[(2-methylpropan-2-yl)oxy]-6-(phenylmethoxymethyl)oxan-2-yl]prop-2-enyl 2,4-dichlorobenzoate 在
bis[1,2-bis(diphenylphosphino)ethane]palladium(0) 作用下,
生成 2-[(E)-3-((2R,4R,6S)-6-Benzyloxymethyl-4-tert-butoxy-tetrahydro-pyran-2-yl)-allyl]-malonic acid dimethyl ester