作者:Carmen Bucuroaia、Ulrich Groth、Thomas Huhn、Michael Klinge
DOI:10.1002/ejoc.200900462
日期:2009.7
bislactim ether of cyclo-(-L-Val-Gly-) yields the propargyl-substituted bislactim ethers 12. Subsequent hydrolysisaffords, after protection of the amino group, the methyl α-allenylglycinates 15, the α-allenylglycines 16, and the methyl α-propargylglycinates 17. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
环-(-L-Val-Gly-) (9) 的双内酰胺的高铜与伯炔丙基卤化物的偶联以高度非对映选择性的方式产生了烯丙基取代的双内酰胺 11,而锂化双内酰胺的烷基化环-(-L-Val-Gly-) 生成炔丙基取代的双内酰胺醚 12。在保护氨基后,随后的水解提供 α-烯丙基甘氨酸甲酯 15、α-烯丙基甘氨酸酯 16 和 α-炔丙基甘氨酸甲酯17. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)