Enantioselective synthesis of L-phosphinothricin from L-methionine and L-glutamic acid via L-vinylglycine
作者:Hans-Joachim Zeiss
DOI:10.1016/s0040-4020(01)80494-4
日期:1992.1
L-Phosphinothricin (6), a natural occurring amino acid which possesses herbicidal and antibiotical properties by inhibiting the enzyme glutamine synthetase (E.C. 6.3.1.2) in plants and bacteria, can be obtained with 99.4% enantiomeric excess via regioselective addition of alkyl methylphosphinates 4 to protected L-vinylglycine derivatives 3 followed by hydrolysis of the intermediates 5. L-Vinylglycine
L-磷脂酰丝氨酸(6)是一种天然氨基酸,通过抑制植物和细菌中的谷氨酰胺合成酶(EC 6.3.1.2)而具有除草和抗生素特性,可以通过区域选择性地添加烷基甲基次膦酸酯来获得99.4%的对映异构体4到被保护的L-乙烯基甘氨酸衍生物3,然后水解中间体5。L-乙烯基甘氨酸衍生物3可以容易地由L-蛋氨酸(1a)和L-谷氨酸(1b)制备。受保护的L-乙烯基甘氨酸衍生物3 也可以用作在4-位带有膦酸酯或氧化膦部分的L-2-氨基丁酸的对映选择性合成的原料。