作者:Ching-Huang Chen、Yi-Wen Lin、Rajesh Kakadiya、Amit Kumar、Yu-Ting Chen、Te-Chang Lee、Tsann-Long Su
DOI:10.1016/j.tet.2011.06.062
日期:2011.8
1-de]acridines (15a,b or 24a,b), for constructing the target compounds were synthesized either from 3-(N,N-diphenylamino)propionic acid (14a,b) by treating with Eaton’s reagent (P2O5/MsOH) (Method 1) or from (9-oxo-9H-acridin-10-yl)propionic acid (23a–c) via ring cyclization under the same reaction conditions (Method 2). Compounds 15a,b and 24a,b were converted into (±)3-hydroxy derivatives (25a–d), which
合成了一系列(±)3-羟基-和2,3-二羟基-2,3-二氢-7-氧代吡啶并[3,2,1- de ] ac啶,用于抗肿瘤评估。这些药剂可以被认为是乙二醛或(±)1,2-二羟基乙酰丙胺衍生物的类似物。由3-(N,N-N-二苯氨基)丙酸(3,7-dioxopyrido [3,2,1- de ] ac啶(15a,b或24a,b)构成目标化合物的关键中间体图14A,b)通过用Eaton试剂治疗(P 2 ø 5 /的MsOH)(方法1),或从(9-氧代-9- ħ-acridin-10-yl)丙酸(23a – c)在相同的反应条件下通过环环化(方法2)。将化合物15a,b和24a,b转化为(±)3-羟基衍生物(25a - d),然后将其进一步转化为吡啶并[3,2,1- de ] acridin-7-one(28a - d)通过在吡啶中用甲磺酸酐进行脱水处理。的1,2-双羟基28A - d得到(±)顺式-2