Synthesis and biological evaluation of N.alpha.-(5-deaza-5,6,7,8-tetrahydropteroyl)-L-ornithine
作者:Shyam K. Singh、Sara C. Singer、Robert Ferone、Kathleen A. Waters、Robert J. Mullin、John B. Hynes
DOI:10.1021/jm00089a009
日期:1992.5
conventional peptide bond forming conditions. Deprotection first in base and then in acid gave the title compound. Compound 3 was an effective inhibitor of hog liver folylpolyglutamate synthetase (Kis, estimated = 64 nM), and was shown to retard the formation of polyglutamates of a structurally related folic acid analogue in HCT-8 cells in vitro.
通过多步合成序列制备了新的叶酸类似物Nα-(5-deaza-5,6,7,8-四氢蝶酰基)-L-鸟氨酸3。关键步骤包括将5-脱氮杂戊酸转化为其N10-甲酰基衍生物,然后将吡啶环催化加氢,然后在稀氢氧化钠中加热,得到新的5-deaza-5,6,7,8-四氢蝶呤酸。 。三氟乙酰化后,使用常规的肽键形成条件,将该化合物偶联至N-(叔丁基-氧羰基)-L-鸟氨酸。首先在碱中然后在酸中脱保护,得到标题化合物。化合物3是猪肝叶酰聚谷氨酸合成酶的有效抑制剂(Kis,估计= 64nM),并且显示出可在体外抑制HCT-8细胞中结构相关的叶酸类似物的聚谷氨酸的形成。