Enantiospecific synthesis and biological evaluation of seco analogues of antitumor amaryllidaceae alkaloids
摘要:
Some ''seco'' analogues of Amaryllidaceae alkaloids narciclasine and lycoricidine have been prepared in enantiomerically pure form from D-glucose using Ferrier carbocyclization as the key step. N-acylation of the resulting amines 21, 22, 25 and 26 with several aromatic acids led to amides 31-34 structurally related to narciclasine and lycoricidine. These seco analogues are devoided of biological activity.
Enantiospecific synthesis and biological evaluation of seco analogues of antitumor amaryllidaceae alkaloids
摘要:
Some ''seco'' analogues of Amaryllidaceae alkaloids narciclasine and lycoricidine have been prepared in enantiomerically pure form from D-glucose using Ferrier carbocyclization as the key step. N-acylation of the resulting amines 21, 22, 25 and 26 with several aromatic acids led to amides 31-34 structurally related to narciclasine and lycoricidine. These seco analogues are devoided of biological activity.
Chiral cyclohexanes from carbohydrates: successful carbocyclisation of a D-arabino-hex-5-enopyranoside derivative
作者:Fran�oise Chretien、Yves Chapleur
DOI:10.1039/c39840001268
日期:——
Carbocyclisation of a hex-5-enopyranoside of D-arabino configuration under modified Ferrier's conditions gave chiral substituted cyclohexanes, which are precursors of aminocyclitols and useful synthetic intermediates, in good yield and without side reactions.
的己-5-烯吡喃糖苷的Carbocyclisation d -阿糖改性费里尔的条件下配置了手性取代的环己烷,其是aminocyclitols和有用的合成中间体的前体,以良好的收率和没有副反应。