Preparation of aromatic and heteroaromatic carboxylic acids by catalytic ozonolysis
申请人:——
公开号:US20030216577A1
公开(公告)日:2003-11-20
A process for catalytically oxidizing alkylaromatic compounds of the formula (I)
Ar—CH
2
—R
where Ar is an optionally substituted, aromatic or heteroaromatic 5-membered or 6-membered ring or a ring system having up to 20 carbon atoms where Ar may optionally be fused to a C
1
-C
6
-alkyl group in which up to 2 carbon atoms may be replaced by a heteroatom, and R is hydrogen, phenyl, benzyl or heteroaryl, where the phenyl, benzyl or heteroaryl radicals may also be joined to Ar by a bridge, or R together with Ar forms an optionally substituted ring system which may contain one or more optionally substituted heteroatoms, to the corresponding aromatic or heteroaromatic carboxylic acids in a solvent with ozone in the presence of a transition metal catalyst and optionally in the presence of an acid at a temperature between −70° C. and 110° C. to the corresponding carboxylic acid.
NON-NUCLEOSIDE ANTI-HEPACIVIRUS AGENTS AND USES THEREOF
申请人:Boyd A. Vincent
公开号:US20070021434A1
公开(公告)日:2007-01-25
The present dislcosure provides amide-based, non-nucleoside compounds having antiviral activity against Hepacivirus, such as hepatitis C virus (HCV), methods and intermediates for synthesizing such compounds, and methods of using the compounds in a variety of contexts, including in the treatment and prevention of viral infections. The present dislcosure also provides methods for identifying amide-based, non-nucleoside compounds having antiviral activity.
COMPOSITIONS AND METHODS FOR TREATING HYPERPROLIFERATIVE DISEASE
申请人:Cameron Dale Russell
公开号:US20080171783A1
公开(公告)日:2008-07-17
The present disclosure provides amide-based, non-nucleoside compounds having an inhibitory activity against endogenous polymerases, such as polymerase alpha and polymerase gamma. This disclosure further provides uses of treating hyperproliferative diseases or disorders, such as benign or malignant neoplasms, and more specifically cancers that are sensitive to inhibition of polymerase alpha and polymerase gamma.
Contribution of Intramolecular NH···O Hydrogen Bonds to Magnesium–Carboxylate Bonds
作者:Taka-aki Okamura、Junko Nakagawa
DOI:10.1021/ic400671v
日期:2013.10.7
Mg–carboxylate bond at the trans position. In contrast, a weak Mg–carboxylate bond strengthens the Mg–O(water) bond, probably increasing the acidity. Based on the experimental results and theoretical calculations, a new switching mechanism is proposed. In the proposed mechanism, the acidity of the coordinated water on magnesium is controlled during catalytic hydrolysis in endonuclease.
Compositions of lipopeptide antibiotic derivatives and methods of use thereof
申请人:Cameron R. Dale
公开号:US20050153876A1
公开(公告)日:2005-07-14
The present invention provides derivatives of lipopeptide antibiotics that display antimicrobial activity against microorganisms, methods and compounds for synthesizing such antimicrobial derivatives and analogues, and methods of using the compounds in a variety of contexts, including in the treatment and prevention of microbial infections.