Preparation of novel benzophenone derivatives

C - Chemistry – Metallurgy – 07 – C

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260/578.1

C07C 49/80 (2006.01) C07C 45/41 (2006.01) C07C 45/62 (2006.01) C07C 45/68 (2006.01) C07C 49/784 (2006.01) C07C 49/796 (2006.01) C07C 49/813 (2006.01) C07C 49/84 (2006.01) C07C 59/88 (2006.01)

Patent

CA 1045159

PRECIS DE LA DIVULGATION: Nouveaux dérives de la benzophénone portant une chaîne aliphatique et répondant à la formula I: Image (I) dans laquelle Hal représente un atome d'halogène, R1 représente un atome d'hydrogène, ou un radical alcoyle renfermant de 1 à 5 atomes de carbone, et R2 représente une chaîne hydrocarbonée ali- phatique renfermant de 2 à 18 atomes de carbone du type: (CH2)a-CH=CH-(CH2)b-H ou du type -(CH2)a-CH2-CH2-(CH2)b-H a étant soit 0 ou 1 et b étant un nombre entier variant de 1 à 5. Ces produits ont une activité analgésique.

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