23826-47-3Relevant articles and documents
COMPOSITIONS AND METHODS COMPRISING SUBSTITUTED 2-AMINOIMIDAZOLES
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Paragraph 0189, (2018/10/25)
The present invention presents 2-(acylamino)imidazoles with therapeutic activity, including selective activity against cancer cells, and compositions comprising them. Methods of using and preparing the 2-(acylamino)imidazoles are also presented.
ZnCl2-promoted asymmetric hydrogenation of β-secondary-amino ketones catalyzed by a P-chiral rh-bisphosphine complex
Hu, Qiupeng,Zhang, Zhenfeng,Liu, Yangang,Imamoto, Tsuneo,Zhang, Wanbin
supporting information, p. 2260 - 2264 (2015/02/19)
A new catalytic system has been developed for the asymmetric hydrogenation of β-secondary-amino ketones using a highly efficient P-chiral bisphosphine-rhodium complex in combination with ZnCl2 as the activator of the catalyst. The chiral γ-secondary-amino alcohols were obtained in 90-94% yields, 90-99% enantioselectivities, and with high turnover numbers (up to 2000 S/C; S/C = substrate/catalyst ratio). A mechanism for the promoting effect of ZnCl2 on the catalytic system has been proposed on the basis of NMR spectroscopy and HRMS studies. This method was successfully applied to the asymmetric syntheses of three important drugs, (S)-duloxetine, (R)-fluoxetine, and (R)-atomoxetine, in high yields and with excellent enantioselectivities.
SYNTHESIS, STEREOCHEMISTRY, AND ISOMERIC TRANSFORMATIONS OF 4-ARYL-5-AROYL-2-METHYLTHIO-2-IMIDAZOLINES
Konovalov, V. A.,Bubel', O. N.,Tishchenko, I. G.
, p. 1229 - 1233 (2007/10/02)
The corresponding 4-aryl-5-aroyl-2-methylthio-2-imidazolines were obtained by the reaction of complexes of cis- and trans-3-aroylaziridines and boron trifluoride with methyl thiocyanate.It is shown on the basis of spectral data that the aziridine ring is opened regiospecifically at the C(2) atom and stereospecifically with inversion of the configuration.