Process for preparing microcrystalline isoxicam

Details Process for preparing microcrystalline isoxicam Process for preparing microcrystalline isoxicam

1984-03-12

1985-03-19

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

C07D41312, C07D41712

Patent

active

045060711

ABSTRACT:
A new process for the preparation of microcrystalline isoxicam having a particle size of about 1-30 .mu.m which comprises dissolving isoxicam in a mixture consisting of a solvent miscible with water and of an aqueous base where the resulting basic solution is neutralized with dilute acid to a pH of 4-6 with vigorous agitation precipitating the microcrystalline product is herein described.

REFERENCES:
patent: 3821211 (1974-06-01), Sircar et al.
patent: 3957772 (1976-05-01), Fabian et al.
patent: 3960856 (1976-06-01), Genzer et al.
patent: 3987038 (1976-10-01), Fabian et al.
patent: 4018762 (1977-04-01), Fabian et al.
patent: 4024136 (1977-05-01), Genzer et al.
patent: 4100347 (1978-07-01), Hammen

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