2-acetylpyrroline precursor
AssigneeFirmenich SA
InventorsChristian Starkenmann, Yvan Niclass
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Abstract
Described herein is a precursor compound of formula (I) releasing 2-acetyl-1-pyrroline and a method to release 2-acetyl-1-pyrroline from the precursor compound of formula (I) in the form of any one of its stereoisomers, tautomers, salts or as a mixture thereof, where R1 represents a hydrogen atom or a C1 to C10 hydrocarbon group optionally including one to three heteroatoms; X represents an amino acid, a peptide or a OR2 wherein R2 represents a hydrogen atom or a C1 to C20 hydrocarbon group optionally including one to three heteroatoms and n is 0 when the dotted line represents a single bond or n is 1 when the dotted line represents no bond.
Claims8
A compound of formula
- in the form of any one of its stereoisomers, tautomers, salts or as a mixture thereof,
- wherein
- the dotted line represents a single bond or no bond;
- R1 represents a hydrogen atom or a C1 to C3 alkyl group optionally substituted by a carboxylic acid or a phenyl group;
- R2 represents a hydrogen atom or a C1 to C6 hydrocarbon group;
- and
- n is 0 when the dotted line represents a single bond or n is 1 when the dotted line represents no bond;
- provided that 2-(2-acetylpyrrolidin-1-yl) acetic acid, 2-(2-acetylpyrrolidin-1-yl) butanoic acid, ethyl 2-(2-acetylpyrrolidin-1-yl) propanoate, methyl 2-(2-acetylpyrrolidin-1-yl) acetate, and 2-(2-acetylpyrrolidin-1-yl) propionic acid, and their stereoisomers, tautomers, and salts are excluded.
Dependencies are inferred from the claim text.