@article{mohsin_ahmad_2020,  title={Donepezil: A review of the recent structural modifications and their impact on anti-Alzheimer activity},  volume={56},  ISSN={1984-8250},  url={https://doi.org/10.1590/s2175-97902019000418325},  DOI={10.1590/s2175-97902019000418325},  journal={Brazilian Journal of Pharmaceutical Sciences},  publisher={Universidade de São Paulo, Faculdade de Ciências Farmacêuticas},  author={Mohsin, Noor ul Amin and Ahmad, Matloob},  year={2020},  pages={e18325} }