Novel donepezil-like N -benzylpyridinium salt derivatives as AChE inhibitors and their corresponding dihydropyridine “bio-oxidizable” prodrugs: Synthesis, biological evaluation and structure-activity relationship
As an extension of our previous work on donepezil-based “bio-oxidizable” prodrug approach, two new classes of N-benzylpyridinium donepezil analogues in tetralone B2 and acetophenone B3 series and a new set of indanone derivatives B1 were investigated along with the corresponding dihydropyridine prodrugs A1-3. A total of fifty one N-benzylpyridinium quaternary donepezil analogues B1-3 and twenty two