[(9R,10S)-7-(tert-Butyl-dimethyl-silanyloxymethyl)-9-formyl-9-hydroxy-10-(tetrahydro-pyran-2-yloxy)-1,4-dioxa-spiro[4.5]dec-6-en-(8E)-ylidene]-acetonitrile 在
2,6-二甲基吡啶 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 1.5h,
生成 [(9R,10S)-7-(tert-Butyl-dimethyl-silanyloxymethyl)-9-formyl-10-(tetrahydro-pyran-2-yloxy)-9-triethylsilanyloxy-1,4-dioxa-spiro[4.5]dec-6-en-(8E)-ylidene]-acetonitrile