2-Amino-4-hydroxy-4,5,6,7-tetrahydropyrido\x9b2,3-d!pyrimidine derivatives of aromatic amides, such as a benzamide or thienylcarboxamide in which the amino portion of the amide is other than L-glutamic acid are inhibitors of enzymes which utilize folic acid, in particular glycinamide ribonucleotide formyl transferase. A typical embodiment is N-(N-4-\x9b2-(2-amino-4-hydroxy-5,6,7,8-tetrahydropyrido\x9b2,3-d!pyrimidin-6-y l)ethyl!benzoyl}-L-.gamma.-glutamyl)-D-aspartic acid.
芳香酰胺的2-
氨基-
4-羟基-4,5,6,7-四氢
吡啶\x9b2,3-d!
嘧啶衍
生物,如苯甲酰胺或
噻吩甲酰胺,其中酰胺的
氨基部分不同于
L-谷氨酸,是利用叶酸的酶的
抑制剂,特别是甘胺
核糖核苷酸甲酰转移酶。一个典型的实施例是N-(N-4-\x9b2-(2-
氨基-
4-羟基-5,6,7,8-四氢
吡啶\x9b2,3-d!
嘧啶-6-基)乙基!苯甲酰}-L-.gamma.-谷
氨酰)-D-
天冬氨酸。