3-(4-Chloro-2-hydroxy-3-methanesulfonyl-phenylamino)-4-ethoxy-cyclobut-3-ene-1,2-dione 、
3-氨基四氢噻吩 在
3-(4-chloro-2-hydroxy-3-methanesulfonylphenylamino)-4-(tetrahydrothiophen-3-ylamino)cyclobut-3-ene-1,2-dione 、
6-chloro-2-hydroxy-N,N-dimethyl-3-{2-[(R)-1-((2R,5R)-5-methyltetrahydrofuran-2-yl)propylamino]-3,4-dioxocyclobut-1-enylamino}benzenesulfonamide 作用下,
以
乙醇 为溶剂,
生成 3-(4-chloro-2-hydroxy-3-methanesulfonylphenylamino)-4-(tetrahydrothiophen-3-ylamino)cyclobut-3-ene-1,2-dione