Iridoids from Carbohydrates via Pauson−Khand Reaction: Synthesis of Advanced Highly Oxygenated Cyclopentane-Annulated Pyranosides from <scp>d</scp>-Glucal Derivatives
作者:José Marco-Contelles、Juliana Ruiz-Caro
DOI:10.1021/jo991044x
日期:1999.10.1
suitable 4-oxa-hept-1-en-6-ynes (1, 17) obtained from 3,4,6-tri-O-acetyl-D-glucal gives the cyclopentane-annulated pyranosides (2, 18) that can be efficiently and stereoselectivelly transformed into chiral, advanced, highly oxygenated intermediates (10, 16, 24) for the synthesis of iridoid aglycones.
由3,4,6-三-O-乙酰基-D-葡糖醛制得的合适的4-氧杂庚基-1-en-6-炔(1,17)上的Pauson-Khand反应产生环戊烷-环烷吡喃糖苷(2 ,18)可以有效地和立体选择性地转化为手性的,高级的,高度氧化的中间体(10、16、24),用于合成虹彩状苷元。