作者:Srinivasa Marimganti、Ralph Wieneke、Armin Geyer、Martin E. Maier
DOI:10.1002/ejoc.200700024
日期:2007.6
ω-hydroxy and ω-amino acid derivatives 13 and 21, the two closely related geodiamolide analogs 32 and 35, respectively, were prepared. Compared to the natural cyclodepsipeptide geodiamolide (1), the macrocycles 32 and 35 have a smaller ring size (17- vs. 18-membered). Conformational analysis by ROESY spectroscopy and molecular dynamics simulation revealed that the reduced ring size causes the polypropionate
从 ω-羟基和 ω-氨基酸衍生物 13 和 21 开始,分别制备了两个密切相关的土霉胺类似物 32 和 35。与天然环缩肽 geodiamolide (1) 相比,大环 32 和 35 具有较小的环尺寸(17 元与 18 元)。ROESY 光谱学和分子动力学模拟的构象分析表明,环尺寸的减小导致聚丙酸酯扇形体相对于地电二胺构象翻转。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)