Toluene-4-sulfonic acid (2R,3R,4R,6R)-6-(12H-11,12-diaza-indeno[2,1-a]fluoren-11-yl)-3,4-dihydroxy-tetrahydro-pyran-2-ylmethyl ester 在
吡啶 、 sodium iodide 作用下,
以
丁酮 为溶剂,
生成 Acetic acid (2S,3R,4R,6R)-3-acetoxy-6-(12H-11,12-diaza-indeno[2,1-a]fluoren-11-yl)-2-iodomethyl-tetrahydro-pyran-4-yl ester