Rafeeq Alam Khan, Huma Rasheed, Zafar Saeed Saify, Asif Bin Rehman, Muhammad Arif
Two chemically synthesized piperidinium derivatives i.e. 1-melhyl-1-(3,4) dihydroxy phenacyl-4-hydroxy piperidinium chloride and 1-methyl-(4-p) methoxy phenacyl 4-hydroxy pipridinium