Synthetic and mechanistic studies on the antitumor antibiotics esperamicin A1 and calicheamicin .gamma.1: synthesis of 2-ketobicyclo[7.3.1.]enediyne and 13-ketocyclo[7.3.1]enediyne cores mediated by .eta.2]dicobalt hexacarbonyl alkyne complexes. Cycloaromatization rate studies
作者:Philip Magnus、Paul Carter、Jason Elliott、Richard Lewis、John Harling、Thomas Pitterna、William E. Bauta、Simon Fortt
DOI:10.1021/ja00033a031
日期:1992.3
of the antitumor antibiotics esperamicin and calicheamicin can be realized provided the 10,11-acetylenic bond is complexed as its derived η 2 Co 2 (CO) 6 adduct. The 10,11-η 2 -2-ketobicyclo[7.3.1] enediyne dicobalt hexacarbonyl adduct 38 was synthesized using η 2 dicobalt hexacarbonyl propargyl cation alkylation to form the crucial 10-membered ring
如果 10,11-炔键复合为其衍生的 η 2 Co 2 (CO) 6 加合物,则可以实现构建抗肿瘤抗生素 esperamicin 和 calicheamicin 的双环 [7.3.1] 十三烯二炔核心结构的一般策略。10,11-η 2 -2-酮双环[7.3.1] 烯二炔二钴六羰基加合物 38 是使用 η 2 二钴六羰基炔丙基阳离子烷基化合成关键的 10 元环