三(2-氨基乙基)胺 、 3-(3-(dimethylamino)propylamino)-4-ethoxy-3-cyclobutene-1,2-dione 以
乙醇 为溶剂,
以78%的产率得到3-[2-[Bis[2-[[2-[3-(dimethylamino)propylamino]-3,4-dioxocyclobuten-1-yl]amino]ethyl]amino]ethylamino]-4-[3-(dimethylamino)propylamino]cyclobut-3-ene-1,2-dione