作者:O. O. Kolodyazhnaya、A. O. Kolodyazhnaya、O. I. Kolodyazhnyi
DOI:10.1134/s1070363213040300
日期:2013.4
A scheme for the synthesis of phosphonicanalog of glutamic acid starting from tert-butyl N-tert-butoxycarbonylaspartate I was developed. The latter was obtained from aspartic acid by the previously described method [1, 2]. The carboxy group of compound I was acylated with ethyl chloroformate and reduced with sodium borohydride in methanol to give tertbutyl-(S)-N-(tert-butoxycarbonyl)homoserine (S)-II
开发了一种从 N-叔丁氧基羰基天冬氨酸叔丁酯 I 开始合成谷氨酸膦类似物的方案。后者通过前面描述的方法 [1, 2] 从天冬氨酸中获得。化合物 I 的羧基用氯甲酸乙酯酰化,并在甲醇中用硼氢化钠还原,得到叔丁基-(S)-N-(叔丁氧基羰基)高丝氨酸 (S)-II [2]。后者通过与三苯基膦和溴三氯甲烷的反应转化为溴化物 (S)-III [3]。将溴化物 III 引入与三甲基甲硅烷基二乙基亚磷酸酯的 Arbuzov 反应中得到膦酸盐 IV,用稀盐酸对其进行脱保护得到谷氨酸 V 的磷类似物。