FIELD: chemistry.
SUBSTANCE: invention refers to novel method of obtaining [2S*[R*[R*[R*]]]] and [2R*[S*[S*[S*]]]]-(±)α,α'-[iminobis(methylene)]bis[6-fluoro-3,4-dihydro-2H-1-benzopyrane-2-methanol] racemate of the formula (I) (nebivolol) and its pharmaceutically acceptable salts , involving stages indicated in the claim, and to intermediate compounds and methods of obtainment thereof.
EFFECT: improved method.
106 cl, 12 tbl, 20 ex
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Authors
Dates
2010-06-20—Published
2006-12-28—Filed