| abstract |
PROCEDURE FOR THE PREPARATION OF DERIVATIVES OF PHENOTHIAZINE, OF GENERAL FORMULA (I), IN WHICH R1 IS A DIVALENT ALIPHATIC HYDROCARBON GROUP; R2 AND R3, ARE THE SAME OR DIFFERENT, AND EACH MEAN HYDROGEN OR ALKYL; R4 IS HYDROGEN OR HALOGEN; AND A IS C1C4 ALKYLENE. CONSISTS OF RENTING A COMPOUND OF GENERAL FORMULA (II), IN WHICH COR6 IS AN ESTER OR AMIDA GROUP. OPTIONALLY THE FORMULA COMPOUND (I) THE REDUCTION OF ONE OR MORE DOUBLE LINKS OR THROUGH DEESTERIFICATION OF A GROUP OF ESTER. OF APPLICATION IN MEDICINE FOR ITS ANTI-HISTAMINIC AND ANTI-ALLERGIC ACTIVITY. |