Highly Efficient and Selective Formation of Hydrogencarbonate in CO<sub>2</sub> Absorption Process Using Piperidine and Piperazine Derivatives
作者:Man Sub Shin、Yoon Kook Park、Sung Chan Nam、Kwang-Jin Hwang
DOI:10.1246/cl.2012.142
日期:2012.2.5
This investigation demonstrated that bicarbonate ions were selectively formed over carbamate in a CO2 absorption process using piperidine and piperazine derivatives based on 13C NMR. Piperidines with methyl or hydroxymethyl substituent at 2 position (PiP-Me and PiP-MeOH) and 2,5-dimethylpiperazine (DM-PiZ) generated the bicarbonate ions as main adducts in reaction with CO2. The absorptions of CO2 by those aqueous amines (PiP-Me and DM-PiZ) were faster than those of MEA (2-aminoethanol).
1,2,3,4-Tetrahydrophthalazine and hexahydropyridazine compounds for
申请人:USV Pharmaceutical Corporation
公开号:US04659711A1
公开(公告)日:1987-04-21
Compounds of the general formula ##STR1## and their pharmaceutically-acceptable salts, wherein the substituents are as defined herein, having antihypertensive activity.
通式为##STR1##的化合物及其药学上可接受的盐,其中取代基如本文所定义,具有降压活性。
Indolobenzazepine HCV NS5B inhibitors
申请人:Bergstrom P. Carl
公开号:US20070078122A1
公开(公告)日:2007-04-05
The invention encompasses compounds and salts of Formulas I, II, III, and IV as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and are useful in treating those infected with HCV.
Pyrrolo Pyrimidines as Agents for the Inhibition of Cystein Proteases
申请人:Betschart Claudia
公开号:US20090054467A1
公开(公告)日:2009-02-26
The invention provides compounds of Formula I or a pharmaceutically acceptable salt or ester thereof wherein the symbols have meaning as defined, which are inhibitors of cathepsin K and find use pharmaceutically for treatment of diseases and medical conditions in which cathepsin K is implicated, e.g. various disorders including inflammation, rheumatoid arthritis, osteoarthritis, osteoporosis and tumors.