Synthesis and antiviral evaluation of several 6-(Methylene-carbomethoxy)pteridine-4,7(3<i>H</i>,8<i>H</i>)-diones
作者:S. Molina、J. Cobo、A. Sánchez、M. Nogueras、E. De Clercq
DOI:10.1002/jhet.5570360216
日期:1999.3
in this paper. 6-Amino-5-(E)(1′,2′-dicarbomethoxyvinyl)aminopyrimidines, 2, and 6-(methylenecarbomethoxy)pteridinones, 3, have been obtained as main the products, which can be explained on the basis of a Michael addition on pyrimidine derivatives, and cyclization. Those compounds were evaluated for their in vitro antiviral activity.
Facile preparation of 9-H-pyrimido [4,5-b] [1,4] diazepine derivatives from 4,5-diaminopyrimidines and ethyl pyruvate.
作者:Manuel Melguizo、Adolfo Sánchez、Manuel Nogueras、John N. Low、R. Alan Howie、Graciela Andrei、Erik De Clercq
DOI:10.1016/s0040-4020(01)89358-3
日期:1994.1
A facile novel procedure to obtain (±)-6,8-diethoxycarbonyl-6-methyl-9-H-pyrimido [4,5-b] [1,4] diazepines from 4,5-diaminopyrimidines and ethyl pyruvate is described. The structure of pyrimido [4,5-b] [1,4] diazepine derivatives for the products of this reaction was confirmed by single crystal X-ray diffraction analysis. The procedure proved to be of wide scope with reference to the substituent of
描述了一种从4,5-二氨基嘧啶和丙酮酸乙酯获得(±)-6,8-二乙氧基羰基-6-甲基-9- H-嘧啶[4,5- b ] [1,4]二氮杂pine的简便新方法。通过单晶X射线衍射分析确认了该反应产物的嘧啶基[4,5- b ] [1,4]二氮杂苯衍生物的结构。相对于起始嘧啶的取代基,该方法被证明具有广泛的应用范围。介绍了使用几种新合成的化合物作为抗癌剂和抗病毒剂进行的生物学测试结果。
A Simple One-Pot Synthesis of New Imidazol-2-yl-1<i>H</i>-quinolin-2-ones from the Direct Reaction of 2-Chloroquinolin-3-carbaldehyde with Aromatic<i>o</i>-Diamines
An alternative and general one-potsynthesis of a library of novel imidazol-2-yl-1H-quinolin-2-one derivatives was performed in 70% aqueous acetic acid by the direct reaction of 2-chloroquinolin-3-carbaldehyde with aromatic o-diamines. Experiments showed that adding Amberlyst ® -15 (20 % w/w) to the reaction media increased both the speed of reaction as well as the yield of products. Both DFT theoretical
Novel racemic indeno[1,2-e]pyrimido[4,5-b][1,4]diazepine-5,11-diones 3-29 were obtained regioselectivily from the reaction of 5,6-diamino-3,4-dihydropyrimidin-4-ones 1 and 2-arylideneindandiones 2 as reagents. These compounds have been evaluated at the US National Cancer Institute (NCI) for their ability to inhibit approximately 60 different human tumor cell lines, where 5 and 6 presented remarkable
The reaction of 4,5-diamino-1,6-dihydropyrimidin-6-ones 1 with one equivalent of the chalcones 2 leads in an acidic medium to the formation of the 2,4-diaryl-2,3,6,7-tetrahydro-1H-pyrimido[4,5-b][1,4]diazepin-6-ones 3a-m. The structure elucidation of the products is based on detailed nmr investigations including selective 13C[1H] decoupling experiments.
4,5-二氨基-1,6-二氢嘧啶-6-酮1与一当量的查耳酮2的反应导致在酸性介质中形成2,4-二芳基-2,3,6,7- tetrahydro-1 H -pyrimido [4,5- b ] [1,4] diazepin-6-ones 3a-m。产品的结构阐明是基于详细的核磁共振研究,包括选择性13 C [ 1 H]去偶联实验。