FIELD: organometallic compounds, chemical technology.
SUBSTANCE: invention relates to metal chelates with derivatives comprising four nitrogen atoms in macrocycle condensed with pyridine cycle, methods for their preparing and their using in medicine for image preparing. Invention provides preparing new compounds with relaxability r1 value by 10-15 times higher as compared with relaxability of compounds having in marketing being not only in the case of magnetic field 0.5 Tesla unit but 1 Tesla unit also, fields of majority modern devices used for preparing image, and even 1.5 Tesla unit, fields of the most effective devices.
EFFECT: improved preparing method.
15 cl, 10 ex
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