Amides of L-aspartyl-D-amino acid dipeptides of the formula ##STR1## and physiologically acceptable cationic and acid addition salts thereof wherein R.sup.a is methyl, hydroxymethyl, ethyl, n-propyl or isopropyl; R is ##STR2## where at least one of R.sup.3, R.sup.4, R.sup.5, R.sup.6 is alkyl having from one to four carbon atoms and the remainder are hydrogen or alkyl having from one to four carbon atoms, and the sum of the carbon atoms in R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is not greater than six; and when both of R.sup.3 and R.sup.4 or R.sup.5 and R.sup.6 are alkyl, they are methyl or ethyl. Said amides are potent sweeteners having advantages over the prior art, edible compositions containing them, methods for their use in edible compositions and novel amine and amide intermediates useful in their production.
L-天冬酰-D-
氨基酸二肽的酰胺,
化学式为##STR1##和其生理上可接受的阳离子和酸加成盐,其中R.sup.a为甲基、羟甲基、乙基、正丙基或异丙基;R为##STR2##其中至少一个R.sup.3、R.sup.4、R.sup.5、R.sup.6是具有一到四个碳原子的烷基,其余为氢或具有一到四个碳原子的烷基,且R.sup.3、R.sup.4、R.sup.5和R.sup.6中的碳原子总数不大于六;当R.sup.3和R.sup.4或R.sup.5和R.sup.6都是烷基时,它们为甲基或乙基。这些酰胺是具有优于现有技术的优点的强效
甜味剂,包含它们的食品组合物,以及在它们的生产中有用的新型胺和酰胺中间体的使用方法。