作者:Andrew V Stachulski、Feodor Scheinmann、John R Ferguson、Jayne L Law、Keith W Lumbard、Peter Hopkins、Naina Patel、Simon Clarke、Anna Gloyne、Simon P Joel
DOI:10.1016/s0960-894x(03)00056-8
日期:2003.3
A number of analogues of morphine-6-glucuronide 1 have been prepared and evaluated as potential analgesic agents by competitive mu-receptor binding assay and in vivo antinociceptive activity. The analogues show variation in the nature of the carbohydrate residue, the N-substituent, the O(3)-substituent and saturation of the 7,8-double bond compared to 1. In general, only the 6beta-glucoside or beta-glucuronide carbohydrate residues showed potent agonism; other modified carbohydrates were less active or exhibited potential antagonism. Variations in N-substituent led to either reduced agonism (N-H) or potential antagonism [N-allyl, N-(cyclopropyl)methyl]; a polar N-substituent, carboxymethyl, failed to bind. Saturation of the 7,8-double bond led to increased agonism compared to the parent compound in all three examples studied. (C) 2003 Elsevier Science Ltd. All rights reserved.