Patent ID: 8088426

Claim:
A flavourant compound according to the formula (I), or a salt thereof, wherein: R 1 is a residue selected from —CH 2 —; —CH 2 CH 2 — or —CH 2 CH 2 CH 2 —; R 2 is a residue selected from —OH, —C 1 -C 5 linear or branched alkoxy residue including —O—CH 3 , —O—CH 2 —CH 3 , —O—CH 2 CH 2 CH 3 , —O—CH(CH 3 )CH 3 , —O—CH 2 CH(CH 3 ) 2 , —O—CH 2 CH(CH 3 )(CH 2 CH 3 ), and —O—CH 2 CH 2 CH(CH 3 ) 2 and the residue of an amino acid selected from the group consisting of α-Ala, α-Gly, α-Val, α-Leu, α-Ile, α-Met, α-Pro, α-Phe, α-Trp, α-Ser, α-Thr, α-Asn, α-Gln, α-Tyr, α-Cys, α-Lys, α-Arg, α-His, α-Asp, α-Glu, β-Ala, and gamma amino butyric acid (GABA), and an uncommon amino acid including 4-hydroxyprolin, ε-N,N,N-trimethyllysine, 3-methylhistindine, 5-hydroxylysine, O-phosphoserine, gamma-carboxyglutamate, ε-N-acetyllysine, ω-N-methylarginine, N-acetylserine, N,N,N-trimethylalanine, N-formylmethionine; R 3 is a residue selected from the group of a residue of γ-Glu (—CO—CH 2 —CH 2 CH(NH 2 )COOH), and β-Asp (—CO—CH 2 —CH(NH 2 )—COOH); X is a residue selected from —S— or —O—; and Y is a residue selected from: —CH 2 —, —CH 2 CH 2 —, CH 2 CH 2 CH 2 —, —CH(COOR 4 )—, —C(COO R 4 ) 2 —, —C(CH 2 COO R 4 ) 2 —, —C(CH 2 COO R 4 )(COO R 4 )—, —C(CH(COO R 4 ) 2 )(COO R 4 )—, —CH(CH 2 COO R 4 )—, —CH(CH 2 CH 2 COO R 4 )—, —CH(CH 2 CH 2 CH 2 COO R 4 )—, —CH(CH(COO R 4 ) 2 )—, —CH(CH(COO R 4 )CH(COO R 4 ) 2 )—, —CH(CH 2 CH(COO R 4 ) 2 )—, —CH(CH(COO R 4 )CH 2 COO R 4 )—, —CH 2 —CH(COO R 4 )—, —CH 2 —C(COO R 4 ) 2 —, —CH 2 —C(CH 2 COO R 4 ) 2 —, —CH 2 —C(CH 2 COO R 4 )(COO R 4 )—, —CH 2 —C(CH(COO R 4 ) 2 )(COO R 4 )—, —CH 2 —CH(CH 2 COO R 4 )—, —CH 2 —CH(CH 2 CH 2 COO R 4 )—, —CH 2 —CH(CH 2 CH 2 CH 2 COO R 4 )—, —CH 2 —CH(CH(COO R 4 ) 2 )—, —CH 2 —CH(CH(COO R 4 )CH(COO R 4 ) 2 )—, —CH 2 —CH(CH 2 CH(COO R 4 ) 2 )—, —CH 2 —CH(CH(COO R 4 )CH 2 COO R 4 )—, —CH(COO R 4 )—CH 2 —, —C(COO R 4 ) 2 —CH 2 —, —C(CH 2 COO R 4 ) 2 —CH 2 —, —C(CH 2 COO R 4 )(COO R 4 )—CH 2 —, —C(CH(COO R 4 ) 2 )(COO R 4 )—CH 2 —, —CH(CH 2 COO R 4 )—CH 2 —, —CH(CH 2 CH 2 COO R 4 )—CH 2 —, —CH(CH 2 CH 2 CH 2 COO R 4 )—CH 2 —, —CH(CH(COO R 4 ) 2 )—CH 2 —, —CH(CH(COO R 4 )CH(COO R 4 ) 2 )—CH 2 —, —CH(CH 2 CH(COO R 4 ) 2 )—CH 2 —, —CH(CH(COO R 4 )CH 2 COO R 4 )—CH 2 —; and R 4 is a residue selected from a C 1 -C 5 linear or branched alkyl residue including —CH 3 , —CH 2 —CH 3 , —CH 2 CH 2 CH 3 , —CH(CH 3 )CH 3 , —CH 2 CH(CH 3 ) 2 , —CH 2 CH(CH 3 )(CH 2 CH 3 ), and —CH 2 CH 2 CH(CH 3 ) 2 , and wherein, when more than two R 4 residues are present, at least one R 4 residue is a C 1 -C 5 linear or branched alkyl residue and of the remaining R 4 residues, one or more may be H, and wherein, when one of the R 4 residues is a propyl, butyl or pentyl residue, then the other R 4 residues are selected from methyl or ethyl or H.