4162-55-4Relevant academic research and scientific papers
Stereoselective aldol reaction of glutarimides using pseudo C2 symmetry
Watanabe, Yohsuke,Yamazaki, Takashi,Kubota, Toshio
supporting information; experimental part, p. 268 - 271 (2010/03/24)
(Figure presented) The boron aldol reaction of β-substituted glutaric imldes bearing an oxazolidinone-based auxiliary proceeds with excellent diastereoselectivity; switching the tertiary amine employed between /-Pr 2EtN or Et3N affor
Design, synthesis, and antipicornavirus activity of 1-[5-(4-arylphenoxy) alkyl]-3-pyridin-4-ylimidazolidin-2-one derivatives
Chang, Chih-Shiang,Lin, Ying-Ting,Shih, Shin-Ru,Lee, Chung-Chi,Lee, Yen-Chun,Tai, Chia-Liang,Tseng, Sung-Nien,Chern, Jyh-Haur
, p. 3522 - 3535 (2007/10/03)
A series of pyridylimidazolidinone derivatives was synthesized and tested in vitro against enterovirus 71 (EV71). On the basis of compound 33 (DBPR103), introduction of a methyl group at the 2- or 3-position of the linker between the imidazolidinone and the biphenyl resulted in markedly improved antiviral activity toward EV71 with IC50 values of 5.0 nM (24b) and 9.3 nM (14a), respectively. Increasing the branched chain to propyl resulted in a progressive decrease in activity, while inserting different heteroatoms entirely rendered the compound only weakly active. The introduction of a bulky group (cyclohexyl, phenyl, or benzyl) led to loss of activity against EV71. The 4-chlorophenyl moiety in 14a was replaced with bioisosteric groups such as oxadiazole (28a-d) or tetrazole (32a,b), dramatically improving anti-EV71 activity and selectivity indices. Compounds 14a, 24b, 28b, 28d, and 32a exhibited a strong activity against lethal EV71, and no apparent cellular toxicity was observed. Three of the more potent imidazolidinone compounds, 14a, 28b, and 32b, were subjected to a large group of picornaviruses to determine their spectrum of antiviral activity.
Synthesis of novel analogues of marine indole alkaloids: Mono(indolyl)-4-trifluoromethylpyridines and bis(indolyl)-4-trifluoromethylpyridines as potential anticancer agents
Xiong, Wen-Nan,Yang, Cai-Guang,Jiang, Biao
, p. 1773 - 1780 (2007/10/03)
Mono(indolyl)-4-trifluoromethylpyridines and bis(indolyl)-4-trifluoromethylpyridines were synthesized using Suzuki cross-coupling reaction between 2-chloro-4-trifluoromethylpyridine 9, 2,6-dichloro-4-trifluoromethylpyridine 6 or 2,6-dichloro-3-cyano-4-tri
Convenient approaches to 4-trifluoromethylpyridine
Jiang, Biao,Xiong, Wennan,Zhang, Xiaobing,Zhang, Fangjiang
, p. 531 - 534 (2013/09/07)
A number of approaches to the synthesis of 2-chloro-and 2,6-dichloro-4-trifluoromethylpyridine are described. The first method for 2-chloro-and 2,6-dichloro-4-trifluoromethylpyridine is based on commercially available ethyl trifluoroacetate. An alternative access to 2,6-dichloro-4-trifluoromethyl pyridine uses trifluoroacetaldehyde as starting material. 2-Chloro-4-trifluoromethylpyridine is prepared from ethyl(trifluoroacetylvinyl)ether in two steps.
Herbicidal glutaramic acids and derivatives
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, (2008/06/13)
This invention relates to glutaramic acids and derivatives exhibiting herbicidal activity having the structure STR1 wherein A is a carboxylic acid or a derivative thereof, D is CH or N, and R, R1, R2, T, X, Y, and Z are as defined within, compositions containing these compounds and methods of controlling weeds with these compounds.
