abstract |
PROCEDURE FOR THE PREPARATION OF FENETHANOLAMINE DERIVATIVES OF THE FORMULA: * FORMULA * OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, WHERE R1 IS HYDROGEN OR FLUOR, R2 IS METHYL OR ETHYL, AND R3 IS HYDROXY, ALKINOCYLONYL AMBLOXY, ALCANOKYLONBYL, AMBLOXYL, ALCANOKYLONBYL. IT CONSISTS OF SUBMITTING A FORMULA COMPOUND TO HYDROLYSIS REACTION: * FORMULA * WHERE M IS AN EASILY SEPARABLE HYDROXY PROTECTION GROUP. THESE COMPOUNDS ARE APPLIED TO CONTROL THE WEIGHT OF MAMMALS. D |