作者:Wilfred J M Lewis、David M Shaw、Jeremy Robertson
DOI:10.3762/bjoc.17.31
日期:——
A one-flask, two-step procedure from 3-amino-2-methyl-5,6,7,7a-tetrahydro-1H-pyrrolizin-1-one affords the Streptomyces secondary metabolites legonmycins A and B – three operations overall from methyl N-Boc-prolinate. The key step proceeds in each case via N,O-diacylation, then selective oxidative hydrolysis of the intermediate bicyclic pyrrole and establishes a precedent for the synthesis of related
通过一瓶两步程序,从 3-氨基-2-甲基-5,6,7,7a-四氢-1H- pyrrolizin -1-one 得到链霉菌次级代谢产物来红霉素 A 和 B – 总共三个操作N -Boc-脯氨酸甲酯。在每种情况下,关键步骤均通过N , O-二酰化,然后中间体双环吡咯的选择性氧化水解进行,并为相关C(7a)-羟基化吡咯里西啶的合成奠定了先例。