C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 491/052 (2006.01) C07D 487/04 (2006.01) C07D 491/04 (2006.01) C07D 491/14 (2006.01) C07D 491/147 (2006.01)
Patent
CA 2453664
A process for preparation of amidine derivatives as represented by the following reaction scheme, characterized in that the reactions of steps 1 and 3 are conducted in acetonitrile and the reaction of step 2 is conducted in acetone.
L'invention concerne un procédé de préparation de dérivés amines représenté par le schéma de réaction (I) suivant, caractérisé en ce que les réactions des étapes 1 et 3 sont mises en oeuvre en présence d'acétonitrile et la réaction de l'étape 2 est mise en oeuvre en présence d'acétone.
Kakinuma Makoto
Kasai Takayuki
Kawata Kyozo
Masui Toshiaki
Kirby Eades Gale Baker
Shionogi & Co. Ltd.
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