dimethyl 2-oxo-4-(1-adamantyl)butylphosphonate 、 Biphenyl-4-carboxylic acid (3aR,4R,5R,6aR)-4-formyl-6a-hydroxy-2-oxo-hexahydro-cyclopenta[b]furan-5-yl ester 生成 Biphenyl-4-carboxylic acid (3aR,4S,5R,6aR)-4-((E)-5-adamantan-1-yl-2-bromo-3-oxo-pent-1-enyl)-6a-hydroxy-2-oxo-hexahydro-cyclopenta[b]furan-5-yl ester