Synthesis of Polyhydroxylated Pyrano-Pyrrole Derivatives from Carbohydrate Precursors
作者:Sébastien Naud、Muriel Pipelier、Guillaume Viault、Ané Adjou、François Huet、Stéphanie Legoupy、Anne-Marie Aubertin、Michel Evain、Didier Dubreuil
DOI:10.1002/ejoc.200700102
日期:2007.7
The efficient synthesis of novel polyhydroxy-tetrahydropyrano-pyrroles from acetylenic carbohydrate precursors in three to four steps is described. The methodology involves, as key steps, the ring contraction of pyridazine intermediates obtained by an inverse-demand Diels–Alder reaction and subsequent intramolecular lactonization. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
描述了从炔烃前体分三到四步有效合成新型多羟基-四氢吡喃-吡咯。该方法包括作为关键步骤,通过逆需求 Diels-Alder 反应和随后的分子内内酯化获得哒嗪中间体的环收缩。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)