CARBIDOPA AND L-DOPA PRODRUGS AND USE THEREOF FOR TREATING PARKINSON'S DISEASE Russian patent published in 2021 - IPC A61K31/661 A61K31/6615 A61P25/16 C07F9/09 

Abstract RU 2743347 C2

FIELD: medicine; pharmaceuticals.

SUBSTANCE: invention relates to a pharmaceutical composition for treating Parkinson's disease, comprising a therapeutically effective amount of a first compound corresponding in structure to formula (I), or a pharmaceutically acceptable salt thereof, and a therapeutically effective amount of a second compound of structure (II) or pharmaceutically acceptable salt thereof. In formula (I), each of R1 and R2 is independently selected from a group consisting of hydrogen, -P(O)(OH)2 and -R5-O-P(O)(OH)2; R5 is C1-C4-alkyl; R6 denotes hydrogen or C1-C4-alkyl; and wherein at least one of R1 and R2 is -P(O)(OH)2 or -R5-O-P(O)(OH)2. In formula (II), each of R3 and R4 is independently selected from a group consisting of hydrogen, -P(O)(OH)2 and -R5-O-P(O)(OH)2; R5 is C1-C4-alkyl; R6 denotes hydrogen or C1-C4-alkyl; and wherein at least one of R3 and R4 is -P(O)(OH)2 or -R5-O-P(O)(OH)2. Invention also relates to a pharmaceutical composition containing specific compounds of formulas (I) and (II), a method of treating Parkinson's disease and a compound, corresponding by structure to formula (I).

EFFECT: carbidopa and L-DOPA prodrugs are proposed and used for treating Parkinson's disease.

14 cl, 22 dwg, 18 tbl, 34 ex

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RU 2 743 347 C2

Authors

Cardinal-David, Benoit

Chan, Vincent S.

Dempan, Kassibla E.

Enright, Brian P.

Henry, Rodger F.

Ho, Raimundo

Huahg, Ye

Huters, Alexander D.

Klix, Russell C.

Krabbe, Scott W.

Kym, Philip R.

Lao, Yanbin

Lou, Xiaochun

Mackey, Sean E.

Matulenko, Mark A.

Mayer, Peter T.

Miller, Christopher P.

Stambuli, James.

Voight, Erik A.

Wang, Zhi

Znang, Geoff G.

Stella, Valentino J.

Dates

2021-02-17Published

2015-10-21Filed