Fluorine containing amino acids and their derivatives. 7. Synthesis and antitumor activity of α- and γ-substituted methotrexate analogs
作者:Tadahiko Tsushima、Kenji Kawada、Shoichi Ishihara、Naomi Uchida、Osamu Shiratori、Junko Higaki、Masaharu Hirata
DOI:10.1016/s0040-4020(01)86044-0
日期:1988.1
afforded a number of fluorine containing α amino acids such as β-fluorinated-alanines, 2-amino-n,n,n-trifluoroalkanoic acids, and fluorinated glutamic acids as well as other γ-heteroatom substituted glutamic acids. Here, an efficient enzymatic optical resolution using hog kidney acylase was conducted to obtain both optical isomers of 2-amino-n,n,n-trifluoroalkanoic acids. In addition, a novel sulfoxide
α-取代的丙二酸酯的三种类型的反应,二氟甲基化,与n,n,n-三氟烷基磺酸酯的烷基化以及与2-取代的丙烯酸酯的Michael加成反应,可方便地得到许多含氟的α氨基酸,例如β-氟代丙氨酸。 ,2-氨基-n,n,n-三氟链烷酸和氟化谷氨酸以及其他γ-杂原子取代的谷氨酸。在此,进行了使用猪肾酰基转移酶的有效酶促光学拆分,以获得2-氨基-n,n,n-三氟链烷酸的两种旋光异构体。另外,在α-二氟甲基-α-亚磺酰丙二酸二乙酯的碱催化反应中观察到了新的亚砜重排。最后,获得的α-和γ-取代的谷氨酸用于抗肿瘤药甲氨蝶呤的化学修饰,以显示出显着的构效关系。特别是,氟取代对观察到体内抗肿瘤活性。