Abstract:
2-Aminobenzophenone anti-oximes are converted to heretofore undescribed dihydroxyacetanilide derivatives, which are useful for preparing known 1,4-benzodiazepin-2-ones.
Abstract:
Two routes for the preparation of 2-(2-acylamido-2-amino)acetamidophenyl aryl ketones, used as intermediates in the synthesis of psycholeptic 1,3-dihydro-2H-1,4-benzodiazepin-2-ones are described. The first of these routes involves the formation of a 2-(2,2-diacyloxy)acetamidophenyl aryl ketone from glyoxylic acid and an aryl phenyl ketone via either a 2,2-diacyloxy acetyl halide or a 2,2-diacyloxy acetyl anhydride, conversion thereof to the corresponding 2-(2-acylamido-2-hydroxy) acetamidophenyl aryl ketone directly or via the 2-(2,2-dihydroxy)acetamidophenyl aryl ketone, formation of the corresponding 2-(2-acylamido-2halo)acetamidophenyl aryl ketone, and conversion to the 2-(2acylamido-2-amino)acetamidophenyl aryl ketone. The second route forms the 2-(2,2-dihydroxy)acetamidophenyl aryl ketone by reacting a 2,3-dicarboxylicacyl tartaric anhydride with a 2aminophenyl aryl ketone to obtain a 2-(3-carboxy-2,3acyloxy)propionamidophenyl aryl ketone, selectively hydrolyzing the so-obtained ketone and selectively oxidizing the product with a vic glycol cleaving agent.
Abstract:
This disclosure is directed to derivatives of 6-amino penicillanic and 7-amino cephalosporanic acids having the following structural formulas:
Abstract:
This invention is directed to novel central nervous system depressants of Formula I:
wherein R1 is selected from the group consisting of (lower)alkyl and ar(lower)alkyl; R2 is selected from the group consisting of di(lower)alkylamino(lower)alkyl and diaryl(lower)alkylamino(lower)alkyl; R1 and R2 may be concatenated to form a radical selected from the group consisting of
WHEREIN R4 is selected from the group consisting of (lower)alkyl, aryl, hydroxy(lower)alkyl, ar(lower)alkyl and (lower)alkoxy(lower)alkyl; R5 is selected from the group consisting of (lower)-alkylamino and piperidino; n is an integer from 3 to 5; m is an integer from 1 - 2; r is an integer from 2 to 3; s is an integer from 0 to 6; t is an integer from 0 - 6; with the proviso that the sum of s and t is 3 to 6; R3 is selected from the group consisting of hydrogen, (lower)alkyl, ar(lower)alkyl and (lower)alkoxy(lower)alkyl; X is selected from the group consisting of halogen, cyano, trifluoromethyl, nitro and (lower)alkylthio; Y is selected from the group consisting of hydrogen, halogen, trifluoromethyl, nitro and (lower)alkylthio; and the pharmaceutically acceptable salts thereof, in addition to the method of their preparation and administration and administrable compositions containing the active compounds.