dipeptide aspartyl ester derivatives, and, sweetener or products such as foods having a sweetness.

摘要

Novel aspartyl dipeptide ester derivatives (including salts thereof) having an excellent sweetening effect and usable as sweeteners such as N- N- 3-(3-methyl-4-hydroxyphenyl)propyl­-L- alpha -aspartyl­-L-phenylalanine 1-methyl ester and N- N- 3-(3-hydroxy-4-methoxyphenyl)propyl­-L- alpha -aspartyl­-L-phenylalanine 1-methyl ester, and excellent sweeteners,etc. containing these novel derivatives are provided. A low-calory sweetener having especially an excellent sweetening potency can be provided in comparison with conventional ones.