5-Acetyl-1-benzyloxymethyl-4-((1S,2R)-1-cyano-2-methanesulfonyloxymethyl-cyclopropyl)-2-methyl-1H-pyrrole-3-carboxylic acid tert-butyl ester 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
生成
tert-butyl 4-methyl-7-oxo-5-(phenylmethoxymethyl)-5,10-diazatetracyclo[7.4.0.01,12.02,6]trideca-2(6),3,8-triene-3-carboxylate