摘要:
The present invention provides a compound of Formula (I) and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes. The compounds are selective Factor XIa inhibitors or dual inhibitors of Factor XIa and plasma kallikrein.
摘要:
An inner salt of L-carnitine is prepared by reduction, with a suitable reducing agent, of a compound of formula (I): where X1 and X2, which may be the same or different, are hydroxy, C1-C4 alkoxy, phenoxy, halogen, or X1 and X2, when taken together are an oxygen atom and the resulting compound is a derivative of succinic anhydride; Y is halogen, the mesyloxy or the tosyloxy group: and subsequent treatment with water, then with a base and then with trimethylamine.
摘要:
Partially fluorinated compounds of specified formulas that are useful as chemical intermediates and monomers are disclosed. Partially fluorinated polymers prepared from one of these compounds are also disclosed. Fluoro-2,2-dimethyldioxolanes and copolymers thereof are further disclosed.
摘要:
PROCESS FOR PREPARING PERFLUORINATED CARBOXYLIC ACIDS, MORE PARTICULARLY PERFLUORIATED MONO-AND DICARBOXYLIC ACIDS AND DERIVATIES THEREOF, WHICH COMPRISES IN A FIRST STAGE DEGRADING PTFE (POLYTETRAFLUOROETHYLENE OR RELATED PERFLUORINATED POLYMERS OR COPOLYMERS BY EXPOSURE TO HIGH-ENERGY RADIATION AT A DOSAGE BETWEEN 8.10**-8 AND 5.10**-10R. AND AT A TEMPERATURE BETWEEN ABOUT 10 AND 95*C. UNTIL PERFLUORINATED ALIPHATIC HYDROCARBONS ARE FORMED IN THE FORM OF VISCOUS OILS OF A CHAIN LENGTH OF C4 TO C20, AND THEREAFTER IN A SECOND STAGE SUBJECTING THE SAME TO OXIDATION WITH A STRONG OXIDANT, THUS OBTAINING PERLFUORINATED ALIPHATIC ACIDS OF THE CORRESPONDING CHAIN LENGTH.