Processes and intermediates for preparing...

Details Processes and intermediates for preparing... Processes and intermediates for preparing...

C - Chemistry, Metallurgy

07

D

C07D 223/16 (2006.01)

Patent

CA 2297612

Disclosed are processes for producing compounds of the formulae: (see formula Ia and II) (wherein X and NH2 in the formula Ia are at least 90% cis; Y1 and Y2 are each hydrogen, halo, nitro, amino, alkyl or alkoxy; and X is phenyl, alkyl, cycloalkyl or the like) that are useful as intermediates for producing benzo[b)azepine-2-one CCK antagonists. The compounds of the formula Ia are produced by reducing the compounds of the formula II with Raney*-nickel and a hydrogen source. The compounds of the formula II may be produced from corresponding 2-aminobenzophenones and diethyl 3-phosphono-2-(methoxyimino)propionic acids or their derivatives.

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