C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/219, 260/242
C07D 475/04 (2006.01) A61K 31/505 (2006.01)
Patent
CA 2040397
Abstract There are described ammonium salts of N5- methyl-5,6,7,8-tetrahydrofolic acid as well as processes for their preparation. These ammonium salts may be sepa- rated into the single (6R) and (6S)-diastereoisomers. The separated diastereoisomers may be transformed into the corresponding alkali metal or alkaline earth metal salts.
Jacques Jean
Marazza Fabrizio
Jacques Jean
Marazza Fabrizio
Osler Hoskin & Harcourt Llp
Sapec S.a. Fine Chemicals
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