METHOD OF PRODUCING R-(-)- SERTACONAZOLE MONONITRATE AND POLYACETONATE OF R-(-)-SERTACONAZOLE MONONITRATE Russian patent published in 2011 - IPC C07D409/12 

Abstract RU 2413728 C2

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of producing (R)-(-)-sertaconazole mononitrate, in which first, a chemical reaction takes place between (R)-(-)-1-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl)-ethanol and an intermediate of general formula where L denotes a leaving group, in the presence of an interphase catalyst and a base in a medium consisting of water and a water-immiscible solvent; followed by treatment with nitric acid and recrystallisation of the solid product formed from a suitable solvent which contains a mixture of an alcohol containing 1-4 carbon atoms and acetone; the formed polyacetone of R-(-)-sertaconazole mononitrate is converted to R-(-)-sertaconazole mononitrate by drying at temperature between 80 and 90°C; and the obtained R-(-)-sertaconazole mononitrate (V) is purified. The invention also relates to polyacetonate of R-(-)-sertaconazole mononitrate .

EFFECT: novel interphase process of producing R-(-)-sertaconazole mononitrate (V).

24 cl, 1 dwg, 1 tbl, 2 ex

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RU 2 413 728 C2

Authors

Kamps Ksav'Er

Petschen Ines

Sal'Jares Khuan

Dates

2011-03-10Published

2005-09-13Filed