FIELD: organic chemistry, food industry. SUBSTANCE: invention describes novel compounds N-(3,3-dimethylbutyl)-L-aspartyl- D-α-aminoalkanoic acid N-(S)-1-phenyl-1-alkaneamide of the general formula (I) -α- where Y is 
or C2H5 and R'' is (S)-CH-CH(CH3)2, (S)-CH-(C2H5)-C6H5 or (S)-CH-(CH3)-C6H5. Compounds can be used sweetening agents. Invention describes also method of their synthesis. EFFECT: improved method of synthesis, valuable properties of compounds. 9 cl, 2 dwg, 1 tbl, 1 ex
