Alpha-aminoalkanoic acids and reduction products

Details Alpha-aminoalkanoic acids and reduction products Alpha-aminoalkanoic acids and reduction products

C - Chemistry, Metallurgy

07

C

C07C 237/20 (2006.01) C07C 229/36 (2006.01) C07C 255/13 (2006.01) C07C 271/10 (2006.01) C07C 271/16 (2006.01) C07C 271/18 (2006.01) C07C 271/22 (2006.01) C07D 213/89 (2006.01) C07D 241/08 (2006.01) C07D 317/64 (2006.01) C07D 319/18 (2006.01) C07D 401/00 (2006.01) C07D 403/00 (2006.01) C07D 405/00 (2006.01) C07D 409/00 (2006.01) C07F 7/10 (2006.01)

Patent

CA 2147044

Compounds of formula I Image (I), wherein R1 is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, aromatic or heteroaromatic radical, a hydroxy group that is aliphatically, araliphatically or heteroarylaliphatically etherified or protected by a hydroxy-protecting group, or an aliphatically etherified mercapto group, and R2 is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic or heteroarylaliphatic radical, or R1 and R2 together form a divalent aliphatic radical, R3 is free or aliphatically, araliphatically or aromatically esterified carboxy, formyl or hydroxymethyl, R4 is hydrogen, an aliphatic or araliphatic radical or an amino-protecting group, and R5 is hydrogen or an aliphatic radical, and the salts thereof can be used as intermediates in the preparation of medicinal active ingredients.

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