作者:Chi-Hien Dang、Cong-Hao Nguyen、Thanh-Danh Nguyen、Chan Im
DOI:10.1039/c3ra46007j
日期:——
Novel 1,3,4,6-tetra-O-acyl-N-acyl-D-glucosamine derivatives were synthesized from glucosamine hydrochloride (GlcN·HCl) by the acylation with pyridine as a catalyst. A derivative of tetra-O-acetyl glucosamine contained ketoprofen, a non-steroidal anti-inflammatory drug (NSAID) with analgesic and antipyretic effects, was first synthesized. In analysis of the NMR spectra, the ratio of α:β-anomer showed that penta-acyl-D-glucosamine derivatives and N-acetylated glucosamines containing O-acyl groups have been only the α-anomer. Meanwhile, both the intermediates and the glucoconjugate compound of ketoprofen have only the β-anomer.
利用吡啶作为催化剂,通过酰化反应从葡萄糖胺盐酸盐(GlcN·HCl)合成了新型1,3,4,6-四-O-酰基-N-酰基-D-葡萄糖胺衍生物。首次合成了一种含有酮洛芬的四-O-乙酰基葡萄糖胺衍生物,酮洛芬是一种具有镇痛和退热作用的无菌性抗炎药物(NSAID)。通过NMR谱图分析,α:β-异构体的比例表明,含有O-酰基的五酰基-D-葡萄糖胺衍生物和N-乙酰化的葡萄糖胺均为α-异构体。同时,酮洛芬的中间体和葡萄糖结合物均为β-异构体。