Synthesis and biological activity of 6H-isoindolo[2,1-a]indol-6-ones, analogues of batracylin, and related compounds
摘要:
Closely related to batracylin, 6H-isoindolo[2,1-a]indol-6-ones including 2-nitro- 13a, 2-amino- 14, and 2-diethylaminopropionamide derivative 16 as well as D-ring substituted 13b, 13c or A-ring substituted 13d and 20 analogues, were synthesised and evaluated against L1210 leukaemia. Subsequent treatment of 13b and 13c with NN-diethylethylenediarnine at 180 degrees C, led to compounds 17a and 17b arising from an unexpected opening of the pyrrolidinone ring and amidification of the keto group. Under the same conditions, the dichloro derivative 13d led to the monoalkyl compound 20 which was the most cytotoxic of the series. (c) 2006 Elsevier SAS. All rights reserved.
An efficient Cu-catalyzed strategy for the direct C–Hamination of arenes in high yields using N-hydroxyphthalimide as the amidyl radical precursor under air is reported. A possible mechanism is proposed that proceeds via a radical reaction in the presence of CuBr and triethyl phosphite.
报道了一种使用N-羟基邻苯二甲酰亚胺作为酰胺基自由基前体在空气下以高产率直接 C-H 胺化芳烃的有效 Cu 催化策略。提出了一种可能的机制,即在 CuBr 和亚磷酸三乙酯存在下通过自由基反应进行。
DE668743
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US2087715
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Photocatalytic C–H Activation and Amination of Arenes with Nonactivated <i>N</i>-Hydroxyphthalimides Involving Phosphine-Mediated N–O Bond Scission
作者:Zhentao Pan、Bo Chen、Jingxi Fang、Tong Liu、Jiayao Fang、Yongmin Ma