Regiocontrolled synthesis of 3-substituted-6-trifluoromethyl-4(3H)-pyrimidinones
作者:Colin M Tice、Lois M Bryman
DOI:10.1016/s0040-4020(01)00042-4
日期:2001.4
Direct reaction of a variety of N-monosubstituted benzamidines with 4,4,4-trifluoroacetoacetate esters substituted at the 2-position with methyl, ethyl or methoxy afforded moderate to good yields of herbicidal 3-substituted-6-trifluoromethyl-4(3H)-pyrimidinones. Lower yields were obtained with the corresponding 4,4-difluoroacetoacetate esters and the reaction failed with nonfluorinated β-ketoesters
FXA INHIBITORS WITH CYCLIC AMIDINES AS P4 SUBUNIT, PROCESSES FOR THEIR PREPARATIONS, AND PHARMACEUTICAL COMPOSITIONS AND DERIVATIVES THEREOF
申请人:Cho Young Lag
公开号:US20100184781A1
公开(公告)日:2010-07-22
The present invention relates to novel oxazolidinone derivatives with cyclic amidines, and prodrugs, hydrates, solvates, isomers and pharmaceutically acceptable salts thereof, and processes for preparing the same, and pharmaceutical compositions comprising the same. The oxazolidinone derivatives with cyclic amidines, and prodrugs, hydrates, solvates, isomers and pharmaceutically acceptable salts thereof can be usefully employed as an anticoagulant for treating thromboembolism and tumors via inhibition of coagulation factor Xa.
Cyclopropanation of Alkenes with Halodiazirines as Halocarbene Precursors in Continuous Flow
作者:Hoang‐Minh To、Thierry Ollevier
DOI:10.1002/chem.202303969
日期:2024.5.17
The preparation of substituted 3-chloro-3-aryl-cyclopropanes through the reaction of alkenes with photolytically-generated chlorocarbenes from chlorodiazirines is reported as an effective method. This approach facilitates the production of diverse 3-chloro-3-aryl-cyclopropanes (32 examples) in an continuousflow with a residence time of 5 minutes under the influence of light-emitting diode (LED) irradiation