efficient method for the conversion of alkyl and arylamines to isothiocyanates via dithiocarbamates has been developed using (CH3)2CO-CS2 as co-solvent and triphosgene as dehydrosulfurization reagent. High yields, mild reaction conditions and excellent functional group compatibility make it become a versatile synthetic method for the preparation of isothiocyanates compared with reported methods. [Supplementary
Quinoxalinylethylpyridylthioureas (QXPTs) as Potent Non-Nucleoside HIV-1 Reverse Transcriptase (RT) Inhibitors. Further SAR Studies and Identification of a Novel Orally Bioavailable Hydrazine-Based Antiviral Agent
Quinoxalinylethylpyridylthioureas (QXPTs) represent a new class of human immunodeficiency virus type 1 (HIV-1) non-nucleoside reverse transcriptase (RT) inhibitors (NNRTIs) whose prototype is 6-FQXPT (6). Docking studies based on the three-dimensional structure of RT prompted the synthesis of novel heteroarylethylpyridylthioureas which were tested as anti-HIV agents. Several compounds proved to be
Pyrido-(1,2-a)-1,3,5-triazines which are variously substituted on the triazine ring at the 3-position and on the pyridine ring on any of the available positions are active anthelmintic and antifungal agents and are prepared by condensing a substituted isocyanate or an isothiocyanate with a pyridyl-isocyanate or isothiocyanate. The compounds are disclosed in compositions and methods for the treatment of helminthiasis and fungal diseases.
2-Oxo-2-polyfluoroalkylethane-1-sulfones and -sulfamides in the three-component reactions leading to pyrimidine derivatives
作者:Vadim M. Timoshenko、Yuriy M. Markitanov、Yuriy O. Salimov、Yuriy G. Shermolovich
DOI:10.3998/ark.5550190.p008.582
日期:——
Oxo-2-polyfluoroalkylethane-1-sulfones and -sulfamides undergo Biginelli reaction with aryl aldehydes and (thio)urea to give 4-hydroxy-4-polyfl uoroalkyl-5-sulfonyl-6-aryl- tetrahydropyrimidin-2(1 H)-(thi)ones, whereas three-componentreaction with urea and trialkyl orthoformate provides 4-hydroxy-4-polyfluoroalkyl-5-sulfonyl-3,4-dihydropyrimidin-2(1 H)- ones. Some chemical properties of the synthesized
The present invention is directed to compounds represented by Formula I and pharmaceutically acceptable salts, solvates, hydrates, and prodrugs thereof which are inhibitors of Factor Xa. The present invention is also directed to and intermediates used in making such compounds, pharmaceutical compositions containing such compounds, methods to prevent or treat a number of conditions characterized by undesired thrombosis and methods of inhibiting the coagulation of a blood sample.