The invention relates to aminopyrazole derivatives of formula (I),
wherein A, E, R
1
and R
2
are as defined in the description, their preparation and their use as pharmaceutically active compounds.
Synthesis and Herbicidal Evaluation of Novel 3-[(α-Hydroxy-substituted)benzylidene]pyrrolidine-2,4-diones
作者:Youquan Zhu、Xiaomao Zou、Fangzhong Hu、Changsheng Yao、Bin Liu、Huazheng Yang
DOI:10.1021/jf051510l
日期:2005.11.1
aroyl acetates with N-substituted glycine esters. The new compounds were identified by 1H NMR spectroscopy and elemental analyses. Their herbicidalactivities were evaluated. Some compounds exhibited excellent herbicidalactivities at a dose of 187.5 g/ha. A suitable electron-donating substituent at the 2- and/or 4-position of the phenyl ring was essential for high herbicidalactivity, a result that has
通过使不同的芳酰乙酸酯与N-取代的甘氨酸酯反应,合成了一系列3-[((α-羟基-取代的)亚苄基]吡咯烷-2,4-二酮衍生物作为候选除草剂。通过1H NMR光谱和元素分析鉴定了这些新化合物。对它们的除草活性进行了评估。一些化合物在187.5 g / ha的剂量下表现出优异的除草活性。在苯环的2位和/或4位上合适的供电子取代基对于高除草活性是必不可少的,这一结果以前没有报道。还发现标题化合物的结构-活性关系不同于其他类似种类的较早化合物,其结果可能取决于烯醇结构的不同。
Bromide-Mediated C–H Bond Functionalization: Intermolecular Annulation of Phenylethanone Derivatives with Alkynes for the Synthesis of 1-Naphthols
作者:Tao Lu、Ya-Ting Jiang、Feng-Ping Ma、Zi-Jing Tang、Liu Kuang、Yu-Xuan Wang、Bin Wang
DOI:10.1021/acs.orglett.7b03186
日期:2017.12.1
formation of polysubstituted 1-naphthols. The usage of readily available bromine catalyst, broad substrate scope, and mild conditions make this protocol very practical. Mechanistic investigations reveal that the bromination of phenylethanone derivatives occurs to yield bromo-substituted intermediates, which react in situ with alkynes to furnish the desired 1-naphthols.
[EN] AMINOTRIAZOLE DERIVATIVES AS ALX AGONISTS<br/>[FR] DÉRIVÉS D'AMINOTRIAZOLE COMME AGONISTES D'ALX
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2009077990A1
公开(公告)日:2009-06-25
The invention relates to aminotriazole derivatives of formula (I), wherein A, E, R1 and R2 are as defined in the description, their preparation and their use as pharmaceutically active compounds. The compounds are useful for the prevention or treatment of diseases, which respond to the modulation of the ALX receptor such as inflammatory diseases.