An imidazothiazole compound having the formula (A): ##STR1## wherein R.sub.1 is a phenyl or napthyl which may have a substituent, R.sub.2 is an acyl, and the two bonds at dotted line portions may or may not exist simultaneously, or a pharmacologically acceptable salt thereof and an agent for overcoming resistance to an anti-neoplastic agent or an enhancer for the effect of an anti-neoplastic agent comprising said compound or a pharmacologically acceptable salt thereof as an active ingredient.
An imidazothiazole compound having the formula (A):
wherein R1 is a phenyl or napthyl which may have a substituent, R2 is an acyl, and the two bonds at dotted line portions may or may not exist simultaneously, or a pharmacologically acceptable salt thereof and an agent for overcoming resistance to an anti-neoplastic agent or an enhancer for the effect of an anti-neoplastic agent comprising said compound or a pharmacologically acceptable salt thereof as an active ingredient.
1-Benzyl 3-aminopyrrolidine 1 and 1-benzyl 3-aminopiperidine 2 were prepared rapidly mainly in aqueous conditions in 55 and 75%, yields, respectively, on a multi-gram scale starting from inexpensive and commercially available starting materials. The key step involved the Curtius rearrangement mediated by sodium nitrite and trifluoroacetic acid of the appropriate acylhydrazides. All the reactions (except LAH reductions) were performed in water. (C) 2001 Elsevier Science Ltd. All rights reserved.
Novel 1,5-diaryl pyrazole-3-carboxamides as selective COX-2/sEH inhibitors with analgesic, anti-inflammatory, and lower cardiotoxicity effects
作者:O.M. Hendawy、Hesham A.M. Gomaa、Sami I. Alzarea、Mutariah S. Alshammari、Fatma A.M. Mohamed、Yaser A. Mostafa、Ahmed H. Abdelazeem、Mostafa H. Abdelrahman、Laurent Trembleau、Bahaa G.M. Youssif