Synthesis of defucogilvocarcin V isosteres via MAD-mediated conjugate addition of carbanions to naphthoquinone ketals
作者:David J. Hart、Anthony Mannino
DOI:10.1016/s0040-4020(96)00054-3
日期:1996.3
Treatment of a complex between naphthoquinone ketal 7 and methylaluminum bis(2,6-di-tert-butyl-4-methylphenoxide (MAD) with aryllithium reagents prepared by metallation of oxazoline 13 and amide 18, gave conjugate adducts which were converted to defucogilvocarcin V analogs 2 and 3 via a short reaction sequence. Some problems encountered in the metallation of oxazoline 19, a structural analog of amide 18, are
用由恶唑啉13和酰胺18金属化制得的芳基锂试剂处理萘醌缩酮7和甲基铝双(2,6-二叔丁基-4-甲基苯酚(MAD)之间的络合物,得到共轭加合物,将其转化为脱呋咯菌新霉素V还描述了通过短反应序列的类似物2和3,还描述了在恶唑啉19(酰胺18的结构类似物)的金属化中遇到的一些问题。