2-oxo-oxazolidine-3-sulfonic acid (3-ethylphenyl)amide 、 2-cyclohexyl-1,3,8-triazaspiro[4.5]dec-1-en-4-one bis(2,2,2-trifluoroacetate) 以
乙腈 为溶剂,
反应 0.25h,
以23%的产率得到2-cyclohexyl-4-oxo-1,3,8-triaza-spiro[4.5]dec-1-ene-8-sulfonic acid (3-ethyl-phenyl)-amide