Complete Structural Elucidation of an Oxidized Polysialic Acid Drug Intermediate by Nuclear Magnetic Resonance Spectroscopy
作者:G. Joseph Ray、Neil Ravenscroft、Jürgen Siekmann、Zhenqing Zhang、Paul Sanders、Umesh Shaligram、Christina M. Szabo、Paul Kosma
DOI:10.1021/bc400456g
日期:2014.4.16
only the repeat units, but also the two terminal units at each end of oxidized PSA, an intermediate, which can be used to improve drug performance. The assignments were made using a variety of NMR techniques on oligomers of sialic acid as well as oxidized PSA with molecular masses of 4 and 20 kDa. This enabled structure elucidation that showed the actual moiety formed was not the expected aldehyde or
THOMSON, DAVID S.;PRESTEGARD, JAMES H., CARBOHYDR. RES., 196,(1990) C. 206-210
作者:THOMSON, DAVID S.、PRESTEGARD, JAMES H.
DOI:——
日期:——
Platform Synthetic Lectins for Divalent Carbohydrate Recognition in Water
作者:Tom S. Carter、Tiddo J. Mooibroek、Patrick F. N. Stewart、Matthew P. Crump、M. Carmen Galan、Anthony P. Davis
DOI:10.1002/anie.201603082
日期:2016.8
Biomimetic carbohydratereceptors (“synthetic lectins”) have potential as agents for biological research and medicine. However, although effective strategies are available for “all‐equatorial” carbohydrates (glucose, etc.), the recognition of other types of saccharide under natural (aqueous) conditions is less well developed. Herein we report a new approach based on a pyrene platform with polar arches
仿生碳水化合物受体(“合成凝集素”)具有作为生物研究和医学试剂的潜力。然而,尽管对“全赤道”碳水化合物(葡萄糖等)有有效的策略,但在天然(水性)条件下对其他类型糖类的识别还不够完善。在这里,我们报告了一种基于芘平台的新方法,该平台具有从芳基取代基延伸的极性拱门。这些受体与轴向取代的碳水化合物相容,并且还具有两个相同的结合位点,因此模拟了观察到的天然凝集素的多价性。带负电荷的变体与氨基糖形成 1:2 的主客体复合物,K 1 >3000 m -1对于轴向取代的甘露糖胺,而带正电荷的形式以K 1 ≈1300 m -1结合重要的α-唾液酸单元。