Syntheses and Bioactivities of Substituted 9,10-Dihydro-9,10-[1,2]benzenoanthracene-1,4,5,8-tetrones. Unusual Reactivities with Amines
作者:Duy H. Hua、Masafumi Tamura、Xiaodong Huang、Heidi A. Stephany、Brian A. Helfrich、Elisabeth M. Perchellet、Bonnie J. Sperfslage、Jean-Pierre Perchellet、Suping Jiang、Dennis E. Kyle、Peter K. Chiang
DOI:10.1021/jo010958s
日期:2002.5.1
4-dione and 2-bromo-3-methoxy-9,10-dihydro-9,10-[1,2]benzenoanthracene-1,4,5,8-tetrone (1), respectively. The reactions of 1 with aliphatic primary amines and secondary amines, respectively, produced different products, a result most likely attributed to the different basicities (or nucleophilicities) and steric effects of the two kinds of amines. The structure of the displacement product, 2-bromo-3-[2
已经合成了许多取代的9,10-二氢-9,10- [1,2]苯并蒽-1,4,5,8-四氢呋喃,并评估了它们的抗癌和抗疟活性。通过加热1,4-混合物,一锅合成2,5,8-三甲氧基-9,10-二氢-9,10- [1,2]苯并蒽-1,4-二酮(4)。甲苯中的二甲氧基蒽,甲氧基氢醌,氧化银和碘化锌。用N-溴代琥珀酰亚胺提供的4和2-甲氧基-9,10-二氢-9,10- [1,2]苯并蒽-1,4,5,8-四元(7)的区域选择性溴化反应提供了2-溴-3,5 ,8-三甲氧基-9,10-二氢-9,10- [1,2]苯并蒽-1,4-二酮和2-溴-3-甲氧基-9,10-二氢-9,10- [1,2 ] benzenoanthracene-1,4,5,8-四氢呋喃(1)。1与脂肪族伯胺和仲胺的反应分别产生不同的产物,结果很可能归因于两种胺的不同碱性(或亲核性)和空间效应。取代产物2-溴-3- [2-(叔丁氧基羰基)乙氨基]