METHOD OF PRODUCING TRIS (2-CARBOXYETHYL) OF PHOSPHINE OCTAIDRIC CHALCOGENIDIC CLUSTER COMPLEXES OF RENIATION (VERSIONS) Russian patent published in 2017 - IPC C07F13/00 C07F9/50 A61K49/04 

FIELD: chemistry.

SUBSTANCE: invention relates to the method of obtaining of tris(2-carboxyethyl) phosphine chalcogenide octahedral cluster complexes of rhenium composition H₁₆[{Re₆Q₈}(P(CH₂CH₂COO)₃)₆] (Q=S, Se). Then the reaction mixture is cooled, separating the crystalline product, the remainder of the reaction mixture is brought to a pH of 4-5 solution of potassium hydroxide and allocate the remainder of the target product. Also, the version of the method is proposed. Invention allows to obtain the water-soluble tris (2-carboxyethyl) phosphyne octahedral chalcogenide cluster complexes of rhenium with high yield and purity of the target product.

EFFECT: compounds are promising as radiopaque substances.

3 cl, 6 ex