摘要:
Novel selective synthesis route to introduce primary alkyl groups on aromatic compounds is disclosed. The synthesis route is based on electrophilic aromatic substitutions of thionium ion species that are generated in-situ from aldehydes and thiols, affording benzyl sulfide that can be reduced with triethylsilane.
摘要:
The current invention provides novel retinoid compounds and methods for their synthesis, the use of such compounds for the preparation of medicaments for treating or preventing emphysema, cancer and dermatological disorders, methods for such deseases and pharmaceutical compositions suitable for the treatment or prevention of emphysema, cancer and dermatological disorders.
摘要:
This invention relates to the use of compounds able to decrease potassium ion flow through intermediate conductance calcium activated potassium channels for treatment of diseases related to increased intraocular pressure modulated by intermediate conductance calcium activated potassium channels.
摘要:
Optically active compounds having thio groups at the 2-position which are important to the production of drugs and so on can be produced with minimized racemization in high yield and at a low cost by chlorinating an optically active compound having a hydroxyl group at the 2-position with the inversion of configuration at the 2-position to form an optically active compound having a chlorine atom at the 2-position, and reacting the optically active compound having a chlorine atom at the 2-position with a metal thiolate to introduce a thio group to the compound with the invention of configuration at the 2-position. Further, optically active compounds having thio groups at the 2-position can be produced at higher optical purities and in higher yields by conducting the reaction of an optically active compound having a chlorine atom at the 2-position with a metal thiolate in the presence of water. Additionally, optically active carboxylic acids having thio groups at the 2-position can be efficiently rid of coexistent impurities such as optical isomers by crystallization in the presence of an aliphatic hydrocarbon solvent and/or a sulfur-containing solvent, whereby optically active carboxylic acids having thio groups at the 2-position can be obtained as crystalline substances at further enhanced purities.
摘要:
The present invention provides a compound of formula I processes for preparing such compounds, their the utility in treating clinical conditions including lipid disorders (dyslipidemias) whether or not associated with insulin resistance, methods for their therapeutic use and pharmaceutical compositions containing them.
摘要:
The present invention relates to a compound of the formula ((I): in which: n is an integer chosen from 1, 2 and 3; Y represents O; N-OR9, in which R9 represents H or a saturated hydrocarbon-based aliphatic group; CR10R11, in which R10 and R11, which may be identical or different, represent H or a saturated hydrocarbon-based aliphatic group; R1 and R2, which may be identical or different, represent H or a saturated aliphatic hydrocarbon-based chain; or alternatively R1 and R2 together form an optionally substituted saturated aliphatic hydrocarbon-based chain; the radicals R3 and R4, which may be identical or different, take any of the is meanings given above for R1 and R2, or alternatively R1 and the group R4 borne by the carbon alpha to CR1R2 represent nothing and a double bond links the CR1R2 carbon to the alpha CR3R4 carbon; or alternatively one of the radicals R1 and R2 forms with one of the radicals R3 and R4 an optionally substituted saturated or unsaturated aliphatic hydrocarbon-based chain; one of the radicals R5 and R6 represents W, and the other represents Z which is chosen from a saturated or unsaturated aliphatic hydrocarbon-based radical; an optionally substituted, saturated, unsaturated and/or aromatic carbocyclic or heterocyclic radical; a radical -alk-Cy, in which alk represents an alkylene chain and Cy represents an optionally substituted saturated, unsaturated and/or aromatic heterocyclic or carbocyclic radical; W represents -XL-CO2R7; -X-L-Tet, in which X and L are as defined below and Tet represents optionally substituted tetrazole; in which L represents a saturated or unsaturated aliphatic hydrocarbon-based chain, which is optionally substituted and/or optionally interrupted by optionally substituted arylene; X represents O; NR8, in which R8 represents H; a saturated aliphatic hydrocarbon-based group; a group -CO-R' or -SO2-R', in which R' takes any of the meanings given below for R7 with the exception of H; or R8 represents an optionally substituted aromatic carbocyclic group; or X represent S(O)m , in which m is chosen from 0, 1 and 2; R7 represents H; a saturated or unsaturated aliphatic hydrocarbon-based group; an optionally substituted, saturated, unsaturated and/or aromatic carbocyclic group; an optionally substituted, saturated, unsaturated and/or aromatic heterocyclic group; and the pharmaceutically acceptable derivatives, salts, solvates and stereoisomers thereof, and also mixtures thereof in all proportions, which can be used in the treatment of dyslipidaemia, atherosclerosis and diabetes.