Preparation of novel tricyclic diazo carbapenems: Application of inverse electron demand Diels-Alder reactions of 3,6-bis(methylthio)-1,2,4,5-tetrazine
作者:Subas M. Sakya、Timothy W. Strohmeyer、Stanley A. Lang、Yang-I Lin
DOI:10.1016/s0040-4039(97)01321-x
日期:1997.8
The syntheses of novel tricyclic diazo carbapenem precursor 17, and the deprotected carbapenems 2 and 3 are described. The construction of the tricyclic carbapenem was accomplished by an intramolecular nucleophilic substitution of the diazine sulfone 16 which was obtained from an inverse electron demand Diels-Alder reaction of the alkynyl azetidinone 13 with 3,6-bis(methylthio)-1,2,4,5-tetrazine (4)
描述了新型三环重氮碳青霉烯前体17以及脱保护的碳青霉烯2和3的合成。三环碳青霉烯的构建是通过分子间的亲核取代二嗪砜16来完成的,二嗪砜16是从炔基氮杂环丁酮13与3,6-双(甲硫基)-1,2,4的逆电子需量Diels-Alder反应获得的,5-四嗪(4)。