23092-17-3Relevant academic research and scientific papers
Process for the preparation of 1,4-benzo-diazepines and 1,4-benzodiazepinones
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, (2008/06/13)
This invention relates to an improved process for the preparation of 1,3-dihydro-2H-1,4-benzodiazepin-2-ones and 2,3-dihydro-1H-1,4-benzodiazepines by the condensation of a 2-(2-haloacylamido)-benzophenone or a 2-(2-haloethylamino)-benzophenone, respectively, in the presence of hexamethylenetetramine, a water miscible alcohol containing 5 to 50 volume percent water, and an ammonium salt.
Process for the preparation of 1,4-benzodiazepine derivatives
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, (2008/06/13)
A 1,4-benzodiazepine derivative, or a pharmaceutically acceptable acid salt thereof, of the formula, SPC1 Wherein R1 is hydrogen, halogen, nitro or trifluoromethyl; R2 and R3 are independently hydrogen, halogen, lower alkyl or trifluoromethyl; R4 is lower alkyl, alkenyl, trihaloalkyl, alkoxyalkyl, alkenyloxyalkyl, alkoxyalkoxyalkyl, alkanoyloxyalkyl, cycloalkylalkyl, alkylthioalkyl, alkylsulfinylalkyl, alkylsulfonylalkyl or a group of the formula EQU1 in which R6 and R7 are independently lower alkyl, and n is an integer of 1 to 4; and R5 is hydrogen or lower alkyl, is obtained by reacting a benzophenone derivative of the formula, SPC2 Wherein R1, R2, R3 and R4 are as defined above, with a 2-isocyanatoacetyl chloride derivative of the formula EQU2 wherein R5 is as defined above.
1-POLYHALOGENOALKYL-2-OXO-1,3-DIHYDRO-2H-1,4-BENZODIAZEPINES
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, (2014/02/11)
This invention relates to 2-oxo-1,3-dihydro-2H-1,4-dibenziodiazepines, and the 4-N-oxides thereof, having a polyfluoroalkyl radical attached at the 1-position thereof, to their use as muscle relaxants, as sedatives, an anticonvulsants, and as anti-anxiety agents and to the intermediates useful in the preparation thereof. The compounds may be prepared by N-polyfluoroalkylating the appropriately substituted 2-oxo-1,3-dihydro-2H-1,4-benzodiazepines. Alternate methods for the synthesis of the compounds of this invention are also described
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