一氧化碳 、
3',5'-Difluoro-4-hydroxy-5-(3-hydroxy-4-methyl-pent-1-ynyl)-biphenyl-3-carboxylic acid [2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-amide 在
bis-triphenylphosphine-palladium(II) chloride
1,3-双(二苯基膦)丙烷 、
cesium acetate 作用下,
以
乙腈 为溶剂,
以55%的产率得到7-(3,5-Difluoro-phenyl)-3-isopropyl-1-oxo-1,3-dihydro-benzo[b]furo[3,4-d]furan-5-carboxylic acid [2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-amide