Synthesis, biological activity, QSAR and QSPR study of 2-aminobenzimidazole derivatives as potent H3-antagonists
作者:M Mor
DOI:10.1016/j.bmc.2003.11.030
日期:2004.2.15
and for H(3)-antagonist potency, on electrically stimulated guinea-pig ileum (pK(B)). The pK(i) values of the derivatives with longer chain (5a-k) ranged over 2 orders of magnitude, with the 5(6)-methoxy derivative 5d endowed with sub-nanomolar affinity (pK(i)=9.37). The series having two methylenegroups in the chain spacer (4a-k), showing a small variation in affinity, revealed to be somewhat insensitive