Chemoselective catalytic oxidation from 1,2-diols to a-hydroxy acids in a cat. TEMPO/cat. NaOCl/NaClO2 system has been achieved. The use of a two-phase condition consisting of hydrophobic toluene and water suppresses the concomitant oxidative cleavage. A study of the mechanism suggests that the observed selectivity is derived from the precise solubility: control of diols and hydroxy acids as well as the active species Of TEMPO, Although the oxoammonium species TEMPO+Cl- is hydrophilic, the active species dissolves into the organic layer by the formation of the charge-transfer (CT) complex TEMPO-ClO2 under the reaction conditions.
Narcotic biphasic release compositions and methods for treatment of coughing, sneezing, rhinorrhea, and/or nasal obstruction
申请人:Giordano John A.
公开号:US20080008772A1
公开(公告)日:2008-01-10
The present invention relates to compositions that comprise immediate release and extended release guaifenesin, and extended release hydrocodone bitartrate. The present invention also includes methods for using these compositions for treatment of patients suffering from, for example and without limitation, coughing, sneezing, rhinorrhea, and/or nasal obstruction.
Non-narcotic biphasic release compositions and methods for treatment of coughing, sneezing, rhinorrhea, and/or nasal obstruction
申请人:Giordano John A.
公开号:US20080014261A1
公开(公告)日:2008-01-17
The present invention relates to compositions that comprise immediate release and extended release guaifenesin, extended release phenylephrine and immediate and extended release dextromethorphan. The present invention also includes methods for using these compositions for treatment of patients suffering from, for example and without limitation, coughing, sneezing, rhinorrhea, and/or nasal obstruction.
METABOLIC PROFILING WITH MAGNETIC RESONANCE MASS SPECTROMETRY (MRMS)
申请人:Oregon Institute of Science and Medicine
公开号:US20190391092A1
公开(公告)日:2019-12-26
A method for constructing a metabolic profile of a mammalian (such as a human) subject from one of more urine samples from the subject uses magnetic resonance mass spectrometry (MRMS) for the rapid and inexpensive quantitative measurement of at least 4,000 urinary chemical substances in a single analysis. The method for metabolic profiling measures thousands of urinary substances in a urine sample from a mammalian subject in a single assay. Many of these substances can be of mammalian metabolic origin. The measurements of types and amounts of urinary substances can be correlated to assessments of present or future health of the subject.