tert-Butyl-dimethyl-((Z)-2-tributylstannanylmethyl-but-2-enyloxy)-silane 、 (2S,3R,4S)-4-(2,6-Dioxo-piperidin-4-yl)-2,3,4-trimethoxy-butyraldehyde 在
三氟化硼乙醚 作用下,
生成 4-[(1S,2R,3R,4R)-6-(tert-Butyl-dimethyl-silanyloxymethyl)-4-hydroxy-1,2,3-trimethoxy-5-methyl-hept-6-enyl]-piperidine-2,6-dione