Preparation of Deuterated Methyl and Dimethyl Substituted Nicotinoylating Agents for Derivatization of the N-Terminal of Protein
作者:Hiroki Tsumoto、Chie Murata、Naoki Miyata、Ryo Taguchi、Kohfuku Kohda
DOI:10.1248/cpb.51.1399
日期:——
Methyl groups of 6-methylnicotinic acid and 2,6-dimethylnicotinic acid were deuterated by an H-D exchange reaction under conditions of 1% NaOD/D(2)O on heating. With a condensation reaction between the D-labeled nicotinic acid derivative and N-hydroxysuccinimide with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride, the nicotinoylating agents, 1-(6-methyl[D(3)]nicotinoyloxy)succinimide (2c)
在1%NaOD / D(2)O的加热条件下,通过HD交换反应使6-甲基烟酸和2,6-二甲基烟酸的甲基氘化。通过D-标记的烟酸衍生物和N-羟基琥珀酰亚胺与1-乙基-3-(3-二甲基氨基丙基)碳二亚胺盐酸盐的缩合反应,烟酰化剂1-(6-甲基[D(3)]烟酰氧基)琥珀酰亚胺制备(2c)和1-(2,6-二甲基[D(6)]烟酰氧基)琥珀酰亚胺(2f)。D标记的烟酰化剂及其未标记的对应物均定量修饰了蛋白质的N端。