6-Acetyl-7-<<5-(5-acetyl-4-methoxy-3-propyl-2-thienyloxy)pentyl>oxy>-3,4-dihydro-2H-1-benzopyran-2-carbonsaeureethylester 在
吡啶 、 lithium iodide 作用下,
反应 0.5h,
以76%的产率得到6-Acetyl-7-<<5-(5-acetyl-4-hydroxy-3-propyl-2-thienyloxy)pentyl>oxy>-3,4-dihydro-2H-1-benzopyran-2-carbonsaeureethylester