Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1991-04-11
1993-03-16
Daus, Donald G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
C07D47504
Patent
active
051946114
ABSTRACT:
There are described ammonium salts of N.sup.5 -methyl-5,6,7,8-tetrahydrofolic acid as well as processes for their preparation. These ammonium salts may be separated into the single (6R) and (6S)-diastereoisomers. The separated diastereoisomers may be transformed into the corresponding alkali metal or alkaline earth metal salts.
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Jacques Jean
Marazza Fabrizio
Daus Donald G.
Sapec S.A. fine chemicals
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