Synthesis and biological activity of an acyclic analog of 5,6,7,8-tetrahydrofolic acid, N-[4-[[3-(2,4-diamino-1,6-dihydro-6-oxo-5-pyrimidinyl)propyl]amino]benzoyl]-L-glutamic acid
作者:James L. Kelley、Ed W. McLean、Naomi K. Cohn、Mark P. Edelstein、David S. Duch、Gary K. Smith、Mary H. Hanlon、Robert Ferone
DOI:10.1021/jm00164a014
日期:1990.2
The synthesis and biological evaluation of N-[4-[[3-(2,4-diamino-1,6-dihydro-6-oxo-5-pyrimidinyl)propyl]amino]- benzoyl]-L-glutamic acid (1) (5-DACTHF, 543U76), an acyclic analogue of 5,6,7,8-tetrahydrofolic acid (THFA), are described. The key intermediate, hemiaminal 8, was prepared in four stages from 3-chloropropionaldehyde diethyl acetal. Reaction of 8 with dimethyl N-(4-aminobenzoyl)-L-glutamate
N- [4-[[3-(2,4-二氨基-1,6-二氢-6-氧-5-嘧啶基)丙基]氨基]-苯甲酰基] -L-谷氨酸的合成及生物学评价(1 (5-DACTHF,543U76),一种5,6,7,8-四氢叶酸(THFA)的无环类似物。由4-氯丙醛二乙基乙缩醛分四个阶段制备关键中间体半缩醛8。8与N-(4-氨基苯甲酰基)-L-谷氨酸二甲酯反应,得到2,4-双(乙酰氨基)衍生物11,将其用1N氢氧化钠水解得到1;以类似的方式制备甘氨酸类似物16。N-甲基类似物2和N-甲酰基类似物3分别由11和1制备。化合物1-3在细胞培养物中抑制了底特律98和L细胞的生长,IC50范围为2至0.018 microM。细胞培养物毒性逆转研究和酶抑制试验表明1具有细胞毒性,但不是由二氢叶酸还原酶抑制剂氨基蝶呤的机制引起的。化合物1及其多谷氨酰化的同源物抑制了从头嘌呤生物合成中的叶酸依赖性酶-甘氨酰胺核糖核苷酸转化酶(GAR