作者:Barbara Chatinovska、Rokas Gegevičius、Edvinas Orentas
DOI:10.1021/acs.joc.3c00905
日期:2023.7.7
of vellosimine and its derivatives is secured from a readily affordable C2-symmetric 9-azabicyclo[3.3.1]nonane precursor available in both enantiomeric forms. The strategy reported leverages desymmetrization via intramolecular cyclization used to assemble the key intermediate with two differentiated carbonyl groups. Late-stage site selective indolization enables a concise synthesis of vellosimines and
快速获得velosimine及其衍生物的两种对映体是通过一种容易负担得起的C 2 -对称9-氮杂双环[3.3.1]壬烷前体来确保的,该前体有两种对映体形式。该策略报告利用分子内环化的去对称作用,用于组装具有两个不同羰基的关键中间体。后期位点选择性吲哚化能够简明地合成vellosimines,并实现生物碱支架的直接多样化。