There is provided a novel adrenomedullin derivative capable of sustainably acting for a longer period than natural adrenomedullin. The invention relates to a compound represented by formula (I): A-Ln-B (I), wherein A is a modifying group selected from the group consisting of a palmitoyl group and a polyethylene glycol group, L is a divalent linking group, n is an integer of 0 or 1, and B is a peptide moiety derived from adrenomedullin or a modified form thereof with adrenomedullin activity, wherein the peptide moiety B is bound to the modifying group A or the linking group L via the N-terminal amino group of the peptide moiety B, or a salt thereof, or a hydrate thereof.
本发明提供了一种新型肾上腺髓质素衍生物,与天然肾上腺髓质素相比,该衍生物可持续发挥作用的时间更长。本发明涉及一种由式 (I) 表示的化合物:A-Ln-B(I),其中 A 是选自由棕榈酰基和聚乙二醇基组成的组的修饰基团,L 是二价连接基团,n 是 0 或 1 的整数、和 B 是源自肾上腺髓质素或其具有肾上腺髓质素活性的修饰形式的肽分子,其中肽分子 B 通过肽分子 B 的 N 端氨基与修饰基团 A 或连接基团 L 结合,或其盐,或其水合物。
IBX-Mediated Conversion of Primary Alcohols and Aldehydes toN-Hydroxysuccinimide Esters
作者:Agnes Schulze、Athanassios Giannis
DOI:10.1002/adsc.200303195
日期:2004.2
Recently, the use of the hypervalent iodine reagent 1-hydroxy-1,2-benziodoxol-3(1H)-one 1-oxide (IBX) for the oxidation of primary alcohols and aldehydes to carboxylic acids was described. During the synthesis of these carboxylic acids the corresponding N-hydroxysuccinimide esters were formed as intermediate products, but their isolation as main reaction products was not successful. We report herein