KETOMETHIONINE KETALS AND DERIVATIVES THEREOF Russian patent published in 2013 - IPC C07D317/26 C07D319/06 C07D319/20 C07D321/08 A23K1/16 

FIELD: chemistry.

SUBSTANCE: present invention relates to compounds which are suitable for use in animal feed having general formula I and feed compositions based thereon (I), where A is a fragment (1), (2), (3) or (4), where R is OR', R¹, R² and R' denote C₁-C₁₈alkyl, C₃-C₁₈cycloalkyl, allyl, benzyl, phenyl, C₁-C₁₈alkyloxymethyl, C₂-C₆hydroxyalkyl, C₃-C₆dihydroxyalkyl or a C₃-C₁₂ sugar residue in which one OH group of the sugar is substituted with an O atom of a ketal or an O atom of a carboxylic acid; R³ is C₂-C₄alkylene or a C₃-C₁₂ sugar residue in which two OH groups are substituted with O atoms of a ketal, R⁴ is C₃-C₆alkylene, optionally substituted with a hydroxy group, or a C₃-C₁₂ sugar residue in which one OH groups is substituted with an O atom of a ketal, and one OH group is substituted with an O atom of a carboxylic acid, R⁵ is C₃-C₆ alkylene, optionally substituted with a hydroxy group, or a C₃-C₁₂ sugar residue in which three OH groups are substituted with O atoms of a ketal and one O atom of a carboxylic acid.

EFFECT: novel compounds which are suitable for use in animal feed are disclosed.

16 cl, 6 ex