C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/315.1
C07D 233/38 (2006.01) C07K 5/02 (2006.01) A61K 38/00 (2006.01)
Patent
CA 2004606
Disclosed are a process for preparing an optically active 2-oxoimidazolidine derivative of the formula: (I) Image wherein R1 represents hydrogen atom or a lower alkyl group, according to the process described in the specification; and a 3-acyl-2-oxoimidazolidine-4-carboxylic acid ester derivative having (S, R) configuration of the formula: Image wherein R2 represents a tert-butyl group or a benzyl group, and R3 represents a lower alkyl group or an aryl group.
Hayashi Kimiaki
Kubota Hitoshi
Marks & Clerk
Tanabe Seiyaku Co. Ltd.
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