FIELD: chemistry.
SUBSTANCE: invention discloses methods of producing chirally pure substituted 4,5,6,7-tetrahydrobenzothiazole diamines such as, for example, (6R)-2-amino-4.5,6,7-tetrahydro-6-(propylamino)benzothiazole, and salts thereof, as well as purification of the predominant enantiomer of substituted 4,5,6,7-tetrahydrobenzothiazole diamines from enantiomer-rich mixtures of substituted 4,5,6,7-tetrahydrobenzothiazole diamines.
EFFECT: improved method of producing chirally pure substituted 4,5,6,7-tetrahydrobenzothiazole diamines.
23 cl, 25 ex, 6 tbl, 7 dwg
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