Total Synthesis of Tropoloisoquinolines: Imerubrine, Isoimerubrine, and Grandirubrine<sup>1</sup>
作者:Jae Chol Lee、Jin Kun Cha
DOI:10.1021/ja0101072
日期:2001.4.1
ready access to the tropoloisoquinoline alkaloids imerubrine (1), grandirubrine (2), and isoimerubrine (3) is delineated and features sequential application of the intramolecular Diels-Alder reaction of an acetylene-tethered oxazole and the [4 + 3] cycloaddition of an oxyallyl. A regioselective synthesis of 1 was achieved by stereo- and regioselective oxidation of an 8-oxabicyclo[3.2.1]oct-6-en-3-one cycloadduct