Process for preparing form 1 ranitidine hydrochloride

Details Process for preparing form 1 ranitidine hydrochloride Process for preparing form 1 ranitidine hydrochloride

1995-04-21

1997-09-02

Owens, Amelia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30752

Patent

active

056633815

ABSTRACT:
A process for preparing pure N-[2-[[[5-[dimethylamino)-methyl-2-furanyl]methyl]thio]ethyl]-N'-methyl-2- nitro-1,1-ethyldiamine hydrochloride, designated Form 1 ranitidine hydrochloride, from ranitidine in methylene chloride with the addition of hydrochloric acid. The Form 1 ranitidine hydrochloride thus obtained is stable and therefore useful for producing commercial-scale quantities of Form 1 ranitidine hydrochloride.

REFERENCES:
patent: 4128658 (1978-12-01), Price et al.
patent: 4521431 (1985-06-01), Crookes
patent: 4672133 (1987-06-01), Crookes
patent: 5338871 (1994-08-01), Ngooi et al.

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