A concise total synthesis of (+)-deoxocassine and (−)-deoxoprosophylline from d-xylose
摘要:
A concise total synthesis of (+)-deoxocassine (1) and (-)-deoxoprosophylline (2) has been achieved for the first time from D-xylose. The key steps involved in these synthesis are alkyl Grignard reaction, S(N)2 substitution of mesylate by azide, Wittig reaction, and reductive amination. (C) 2012 Elsevier Ltd. All rights reserved.
A concise total synthesis of (+)-deoxocassine and (−)-deoxoprosophylline from d-xylose
摘要:
A concise total synthesis of (+)-deoxocassine (1) and (-)-deoxoprosophylline (2) has been achieved for the first time from D-xylose. The key steps involved in these synthesis are alkyl Grignard reaction, S(N)2 substitution of mesylate by azide, Wittig reaction, and reductive amination. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis of (−)-Deoxoprosophylline, (+)-2-<i>epi</i>-Deoxoprosopinine, and (2<i>R</i>,3<i>R</i>)- and (2<i>R</i>,3<i>S</i>)-3-Hydroxypipecolic Acids from <scp>d</scp>-Glycals
作者:Hari Prasad Kokatla、Rima Lahiri、Pavan K. Kancharla、Venkata Ramana Doddi、Yashwant D. Vankar
DOI:10.1021/jo100489k
日期:2010.7.2
New syntheses of (−)-deoxoprosophylline, (+)-2-epi-deoxoprosopinine, and (2R,3R)- and (2R,3S)-3-hydroxypipecolic acids are reported. Utilization of the chiral functionalities of Perlin aldehydes, derived from 3,4,6-tri-O-benzyl glycals, has been done along with chemoselective saturation of olefins and reductive aminations as key steps.
报道了(-)-脱氧脯氨酸,(+)-2-表-脱氧胸苷,(2 R,3 R)-和(2 R,3 S)-3-羟基哌酸的新合成。衍生自3,4,6- tri - O-苄基缩醛的Perlin醛的手性官能团已被用作主要步骤,同时对烯烃进行了化学选择性饱和和还原性胺化反应。