作者:Roberto Ballette、Maria Pérez、Stefano Proto、Mercedes Amat、Joan Bosch
DOI:10.1002/anie.201402263
日期:2014.6.10
Madangamines are a group of bioactive marine sponge alkaloids, embodying an unprecedented diazapentacyclic skeletal type. The enantioselective total synthesis of madangamine D has been accomplished, and represents the first total synthesis of an alkaloid of the madangamine group. It involves the stereoselective construction of the diazatricyclic ABC core using a phenylglycinol‐derived lactam as the starting
Madangamines是一组具有生物活性的海洋海绵生物碱,体现了前所未有的二氮杂五环骨架类型。已经完成了对马丹胺D的对映选择性全合成,并且代表了对马丹胺基团的生物碱的第一个全合成。它涉及使用苯甘氨醇衍生的内酰胺作为起始对映体支架和随后大环外围环组装的二氮三环ABC核的立体选择性构建。该合成首次提供了马丹胺D的纯样品,并证实了该生物碱家族的绝对构型。