Process for preparing n-alkylated amino acids and esters...

Details Process for preparing n-alkylated amino acids and esters... Process for preparing n-alkylated amino acids and esters...

C - Chemistry, Metallurgy

07

C

260/387.1, 260/4

C07C 215/00 (2006.01) C07C 227/14 (2006.01) C07C 229/02 (2006.01) C07C 229/06 (2006.01) C07C 229/16 (2006.01) C07C 229/24 (2006.01) C07C 229/26 (2006.01) C07C 229/28 (2006.01) C07C 229/36 (2006.01) C07C 233/43 (2006.01) C07C 255/58 (2006.01) C07C 279/18 (2006.01) C07C 309/19 (2006.01) C07C 309/63 (2006.01) C07C 309/64 (2006.01) C07C 309/65 (2006.01) C07C 309/70 (2006.01) C07C 323/58 (2006.01) C07C 381/00 (2006.01) C07D 207/323 (2006.01) C07D 209/14 (2006.01) C07D 209/18 (2006.01) C07D 209/26 (2006.01) C07D

Patent

CA 1292236

Abstract of the disclosure: The invention relates to a process for preparing compounds of the formula I Image (I) in which n = 1 or 2 and R, R1, R2 and R3 have the meaning defined in the Description, which comprises reacting tri- fluoromethanesulfonates of the formulae II or III with amino acid derivatives of the formulae IV or V, if desired eliminating ester groups by hydrolysis or hydrogenolysis or, if desired, esterifying free carboxyl groups in a manner known per se. The invention also relates to trifluoromethane- sulfonates of the formulae II and III and to a process for their preparation.

446562

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