Benzylation of morphinandienes and new aspects of their acid-catalyzed rearrangement to new aporphines
作者:Attila Sipos、Sándor Berényi
DOI:10.1016/j.tet.2008.04.069
日期:2008.6
5β- versus 7-benzyl products and the deviation of the electronic structure of ring C of 7-benzyl products. The acid-catalyzed rearrangement of morphinan-5,8-dienes, 5,6- and 6,7-disubstituted morphinan-6,8-dienes was achieved and mechanistic interpretations for the formation of new, potentially dopamine-active aporphines were provided.
蒂巴因和6-脱甲氧基蒂巴因的苄基化反应产生不同的产物混合物。对于观察到的5β-与7-苄基产物的比例差异和7-苄基产物的C环电子结构的偏差给出了解释。实现了吗啡喃-5,8-二烯,5,6-和6,7-二取代吗啡喃-6,8-二烯的酸催化重排,并提供了形成新的,可能具有多巴胺活性的紫杉醇的机理解释。