作者:Micah J. Bodner、Ryan M. Phelan、Craig A. Townsend
DOI:10.1021/ol901269d
日期:2009.8.20
are reported where three contiguous stereocenters are established in a single catalytic asymmetric azetidinone-forming reaction. These examples are a template for synthesizing C-5/C-6 cis or trans carbapenems with independent control of the C-8 stereocenter. A library of oxidatively and sterochemically defined azetidinone precursors to a variety of naturally occurring carbapenems and potential biosynthetic
据报道,N-乙酰基硫霉素和表硫霉素 A 以其易于脱保护的形式高效合成,其中三个连续的立体中心在单个催化不对称氮杂环丁酮形成反应中建立。这些例子是合成 C-5/C-6顺式或反式碳青霉烯类的模板,独立控制 C-8 立体中心。已制备了各种天然碳青霉烯和潜在生物合成中间体的氧化和立体化学定义的氮杂环丁酮前体库,以促进碳青霉烯抗生素生物合成的研究。