Synthesis of (1S,4R)-4-isopropyl-1-methyl-2-cyclohexen-1-ol, the aggregation pheromone of the ambrosia beetle Platypus quercivorus, its racemate, (1R,4R)- and (1S,4S)-isomers
摘要:
(S)-Perillyl alcohol was converted to (R)-cryptone (91.5-93% ee) in six steps, which was then treated with methyllithium to give (1S,4R)-4-isopropyl-1-methyl-2-cyclohexen-1-ol, the aggregation pheromone of the ambrosia beetle Platypus quercivorus. The racemic pheromone was also prepared by methylation of (+/-)-cryptone. Both (1R,4R)- and (1S,4S)-isomers (98% ee) of the pheromone were synthesized from the enantiomers of dihydrolimonene oxide. (c) 2006 Elsevier Ltd. All rights reserved.
Compounds that have agonist activity at one or more of the SlP receptors are provided. The compounds are sphingosine analogs that, after phosphorylation, can behave as agonists at SlP receptors.
PYRIDINE AND PIPERIDINE DERIVATIVES AND USE THEREOF
申请人:Purdue Pharma L.P.
公开号:US20150141434A1
公开(公告)日:2015-05-21
The invention provides compounds that are useful as sodium channel blockers. In one aspect, the invention provides compounds of Formula I:
or pharmaceutically acceptable salts, solvates, hydrates, or diastereomers thereof, wherein R
1
, R
4
, X, G, n, p, W
1
, W
2
, W
3
, W
4
, and the E ring are defined in the disclosure. In certain embodiments, the invention provides compounds of Formulae II-XIII as set forth supra. The invention also provides the use of compounds of any of the above discussed formulae to treat a disorder responsive to blockade of sodium channels. In one embodiment, Compounds of the Invention are useful for treating pain.
Oxidation of alcohols with hydrogen peroxide in the presence of a new triple-site phosphotungstate
作者:Ying He、Xiaoyun Ma、Ming Lu
DOI:10.3998/ark.5550190.0013.817
日期:——
A new clean catalytic process for the selective oxidation of alcohol to ketones has been studied. The catalytic properties were investigated with aqueous hydrogenperoxide under halide- and organic solvent-free conditions. The results show that triethyl(2,4,6-trimethyl-3,5-bis[(triethylazaniumyl)methyl]phenyl}methyl)azanium (tribromide) based phosphotungstate complex (TBAP) has excellent catalytic
[EN] HEPATITIS C VIRUS INHIBITORS<br/>[FR] INHIBITEURS DU VIRUS DE L'HÉPATITE C
申请人:ENANTA PHARM INC
公开号:WO2010099527A1
公开(公告)日:2010-09-02
The present invention discloses compounds or pharmaceutically acceptable salts, esters, or prodrugs thereof, which inhibit RNA-containing virus, particularly the hepatitis C virus (HCV). Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
Suggested is a cosmetic compositions comprising
(a) a crosspolymer obtained from copolymerisation of at least two different polyols and at least one dicarboxylic acid and
(b) at least one fragrance.