Room-Temperature Copper-Catalyzed Carbon-Nitrogen Coupling of Aryl Iodides and Bromides Promoted by Organic Ionic Bases
作者:Chu-Ting Yang、Yao Fu、Yao-Bing Huang、Jun Yi、Qing-Xiang Guo、Lei Liu
DOI:10.1002/anie.200903158
日期:2009.9.21
solubility alone does not explain the performance of organic ionic bases in the room‐temperature coupling of aryl iodides and even bromides with aliphatic and aromatic amines and N‐heterocycles (NuH; see scheme). Conductivity measurements show that these organic ionic bases, which contain tetraalkylammonium or ‐phosphonium cations, are readily ionized in organic solvents.
SUBSTITUTED NUCLEOSIDES, NUCLEOTIDES AND ANALOGS THEREOF
申请人:ALIOS BIOPHARMA, INC.
公开号:US20150366888A1
公开(公告)日:2015-12-24
Disclosed herein are nucleosides, nucleotides and nucleotide analogs, methods of synthesizing the same and methods of treating diseases and/or conditions such as a Coronaviridae virus, a Togaviridae virus, a Hepeviridae virus and/or a Bunyaviridae virus infection with one or more nucleosides, nucleotides and nucleotide analogs.
Prodrugs of piperazine and substituted piperidine antiviral agents
申请人:Ueda Yasutsugu
公开号:US20050209246A1
公开(公告)日:2005-09-22
This invention provides for prodrug Compounds I, pharmaceutical compositions thereof, and their use in treating HIV infection.
wherein:
X is C or N with the proviso that when X is N, R
1
does not exist;
W is C or N with the proviso that when W is N, R
2
does not exist; V is C; E is hydrogen or a pharmaceutically acceptable salt thereof; and
Y is selected from the group consisting of
Also, this invention provides for intermediate Compounds II useful in making prodrug Compounds I.
wherein:
L and M are independently selected from the group consisting of C
1
-C
6
alkyl, phenyl, benzyl, trialkylsilyl, -2,2,2-trichloroethoxy and 2-trimethylsilylethoxy.
Benzene-based tripodal isothiouronium compounds as sulfate ion receptors
作者:Hye Ran Seong、Dae-Sik Kim、Sung-Gon Kim、Heung-Jin Choi、Kyo Han Ahn
DOI:10.1016/j.tetlet.2003.11.048
日期:2004.1
benzene-based tripodal isothiouronium receptors are synthesized for the selective recognition of tetrahedral oxoanions. The binding study by isothermal titration calorimetry indicates that the cationic receptors bind sulfate ions preferably in a tripodal mode, while they show a mixed binding mode toward phosphate ion. The tripodal isothiouronium receptors show large ΔG0 values toward sulfate ions in methanol
Provided are methods of treating patients suffering from or susceptible to at least one symptom of abuse of, dependence on, or withdrawal from at least one substance with Compound A. Also provided are methods of treating at least one phase of substance dependence on at least one substance in patients and certain methods of treating at least one phase of cocaine dependence in patients.