Enantioselective synthesis of a chiral intermediate for aztreonam and related monobactam antibiotics
作者:Fred H. van der Steen、Henk Kleijn、Anthony L. Spek、Gerard van Koten
DOI:10.1039/c39900000503
日期:——
The enantioselective synthesis of trans-(3R,4S)-1-(R)-α-methylbenzyl-3-(2,2,5,5-tetramethyl-1-aza-2,5-disilacyclopentyl)-4-N-(R)-α-methylbenzyliminoazetidin-2-one has been accomplished by reaction of the chiorozinc enolate of an N,N-diprotected glycine ethyl ester with a Chiral α-diimine.
的对映选择性合成反式- (3- [R,4小号)-1-([R)-α甲基苄基-3-(2,2,5,5-四甲基-1-氮杂-2,5-二硅杂环)-4- N-(R)-α-甲基苄基亚氨基氮杂环丁烷-2-酮是通过N,N-二保护的甘氨酸乙酯的手性烯醇烯酸酯与手性α-二亚胺的反应而完成的。