作者:Yehia A. Ibrahim、Ahmed H. M. Elwahy
DOI:10.1055/s-1993-25893
日期:——
Sixteen new 14-17-macrocyclic dibenzo and tribenzodioxadiamides and trioxadiamides (macrooxacyclams, e.g., 5,6,7,8,9,10,16,17-octahydrodibenzo [e,m][1,4,8,11 ]dioxadiazatetradecine-5,10-dione) 13-28 have been prepared. Moderate to good yields (40-90%) of 13-28 were achieved in the macrocyclization step by reacting the dipotassium salts of 1,2-bis(2-hydroxybenzoylamino)ethanes 6, 7 and 1,2-bis (2-hydroxybenzoylamino)benzenes 8, 9 with the appropriate dihaloalkane or ditosylate in dimethylformamide. Alkylation of 13 and 25 with an appropriate halo compound in tetrahydrofuran and sodium hydride yielded the corresponding N,N-dialkylmacro-oxacyclams 29-33. The stereochemical purity of the latter was proved by 1H NMR and 13C NMR.
已经制备了16个新的14-17元大环二苯和三苯二氧二胺及三氧二胺(大环氧胺,例如5,6,7,8,9,10,16,17-八氢二苯[e,m][1,4,8,11]二氧二氮四癸因-5,10-二酮)13-28。在DMF中通过1,2-双(2-羟基苯甲酰胺基)乙烷6, 7和1,2-双(2-羟基苯甲酰胺基)苯8, 9的二钾盐与适当的二卤代烷或二甲磺酸酯反应,实现了13-28的大环化步骤,产率为40-90%。在THF和氢化钠中,通过13和25与适当的卤代化合物进行烷基化反应,得到了相应的N,N-二烷基大环氧胺29-33。后者的立体化学纯度通过1H NMR和13C NMR得到了证实。