C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/242.13
C07D 473/18 (2006.01) C07D 475/04 (2006.01) C07D 487/14 (2006.01)
Patent
CA 1108134
PREPARATION AND PURIFICATION OF CITROVORUM FACTOR ABSTRACT OF THE DISCLOSURE Improved methods for the preparation and purifi- cation of citrovorum factor are disclosed. The method includes improved procedures for hydrogenation of 10- formylfolic acid as well as for the reduction of folic acid. Also disclosed are improved procedures for opening of the imidazoline ring, and a non-chromato- graphic method for the purification of crude samples of citrovorum factor.
308616
Elliott Robert D.
Montgomery John A.
Rose Jeremy D.
Temple Carroll G. Jr.
Gowling Lafleur Henderson Llp
U.s. Department Of Commerce (the) United States Of America Represented By Secretary
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