Crystalline salt of 5-methyl-(6S)-tetrahydrofolic acid and L-isoleucine ethyl ester
US12221446B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | Jul 2, 2019 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Nov 25, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to a crystalline salt of 5-methyl-(6S)-tetrahydrofolic acid and L-isoleucine ethyl ester wherein the molar ratio of 5-methyl-(6S)-tetrahydrofolic acid to L-isoleucine ethyl ester is from 1:0.3 to 1:2.0 (in mol/mol) and/or hydrates and/or solvates thereof, as well as, a process of obtaining the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.