作者:Stephen J. Hodson、Eric C. Bigham、David S. Duch、Gary K. Smith、Robert Ferone
DOI:10.1021/jm00039a025
日期:1994.6
Analogues of N-[4-[[3-(2,4-diamino-1,6-dihydro-6-oxo-5-pyrimidinyl)propyl]amino] benzoyl]-L-glutamic acid (5-DACTHF), in which the phenylene group is replaced by either a thienoyl or a thiazolyl group were synthesized. These compounds were prepared by reductive amination of suitably protected pyrimidinylpropionaldehyde with the aminoaroyl glutamates. These glutamates were in turn synthesized from the
N- [4-[[3-(2,4-二氨基-1,6-二氢-6-氧代5-嘧啶基)丙基]氨基]苯甲酰基] -L-谷氨酸(5-DACTHF)的类似物合成了亚苯基被噻吩酰基或噻唑基取代的方法。这些化合物是通过将适当保护的嘧啶基丙醛与氨基芳酰基谷氨酸盐进行还原胺化而制备的。通过与保护的谷氨酸缩合,然后催化还原,再由相应的硝基芳酰基羧酸合成这些谷氨酸盐。测试这些化合物作为甲氨蝶呤摄取的抑制剂,作为与减少的叶酸转运系统的结合的量度,作为甘氨酰胺核糖核苷酸转化酶的抑制剂,作为叶酰聚谷氨酸合成酶的底物,以及作为细胞培养中肿瘤细胞生长的抑制剂。在MCF-7细胞生长抑制试验中,噻吩类似物的活性与5-DACTHF相等,而噻唑类似物的活性高9倍。实际上,这种噻唑在MCF-7细胞系中的活性是临床研究的化合物5,10-二叠氮基5,6,7,8-四氢叶酸(DDATHF)的4倍以上。