Mannich bases derivatives of 2-Phenyl-5-Benzimidazole sulfonic acid; Synthesis, Characterization, Computational studies and Biological evaluation

Abstract A new series of N-Mannich bases of 2-Phenyl-5-benzimidazole sulfonic acid have been synthesized through amino methylation reaction with secondary amines. The two moieties were held together through a methylene bridge, which comes from formaldehyde (Formalin Solution 37%) used in the reaction. Chemical structures of the newly synthesized compounds have been confirmed using FT-IR, 1HNMR and 13CNMR. Different in vitro assays including Anti-oxidant, Enzyme inhibition, Anti-microbial and Cytotoxicity assay were performed to evaluate the biological potential with reference to the standard drug. Among the synthesized library, compound 3a shows maximum alpha-glucosidase inhibition with an IC50 value of 66.66 µg/ml, compound 3d was found most toxic with LC50 value of 10.17 µg/ml. ADME evaluation studies were performed with the help of Molinspiration online software. Docking calculations were also performed. Given the importance of the nucleus involved, the synthesized compound might find extensive medicinal applications as reported in the literature.

Estimation of phytochemicals and antimicrobial activities of mentha spicata from southern districts of KPK.

The medicinal value of the plant is due to the phytochemical constituents they produce, which exhibit certain physiological actions on human body. Phytochemicals are plant derived chemical compoundS, which are non-essential nutrients, some of which show potential health promoting properties. The phytochemical constituents were determined by using known literature method while the antimicrobial activity was analyzed by classical literature methods. In case of phytochemicals, Tannin, Alkaloids, Glycosides, Flavonoids, Steroids, Coumarines, Sterols and Terpenes were found while saponins and anthraquinones were not determined in all the samples. Antibacterial activity was noted high in all the samples of crude extract followed by ethyl acetate and lowest activity was found was found in aqueous extract of Mentha spicata. The Same results were analyzed for antifungal activity.

Comparison of Phytochemical constituents and antimicrobial activities of Mentha spicata from four northern districts of Khyber pakhtunkhwa.

The medicinal value of plants lies in bioactive phytochemical constituents that produce definite physiological actions on the human body. Some of the most important bioactive phytochemical constituents are Tannin, Alkaloids, Saponins, Flavonoids, Steroids, Anthraquinones, Coumarins and Sterols and Terpenes. Infectious diseases are the leading cause of death worldwide, accounting for nearly one half of all deaths in tropical countries which are also becoming a significant problem in developed countries. Therefore the present study was aimed to analyzed the phytochemicals and antimicrobial activities of Mentha spicata. The phytochemical constituents were determined by using known literature method while the antimicrobial activity was analyzed by classical literature methods. In case of phytochemicals, Tannin, Alkaloids, Glycosides, Flavonoids, Steroids, Coumarines, Sterols and Terpenes were found while saponins and anthraquinones were not determined in all the samples. Antibacterial activity was noted high in all the samples of crude extract followed by ethyl acetate and lowest activity was found was found in aqueous extract of Mentha spicata. The Same results were analyzed for antifungal activity.