Benzoxazepinone process

Details Benzoxazepinone process Benzoxazepinone process

C - Chemistry, Metallurgy

07

D

260/301, 260/303

C07D 413/04 (2006.01) C07D 417/04 (2006.01) C07D 487/04 (2006.01) C07D 498/04 (2006.01)

Patent

CA 1336976

Compounds of formula III: Image (III) wherein R1 is a 5- or 6-membered aromatic heterocyclic group; and R4 and R5 each independently signify hydrogen, halogen, trifluoromethyl, cyano, nitro, amino or lower alkyl; are useful intermediates in a novel process for the preparation of a class of pharmacologically active compounds of formula I: Image (I) wherein R1, R4 and R5 are as defined above; and R3 represents hydrogen or lower alkyl.

613616

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