Design, synthesis and biological evaluation of new 1,ω-Bis-(5-alkyl-3-tosyl-1,3,4,2-triazaphospholino)alkanes as in vitro α-amylase and lipase inhibitors

• Published in: International journal of biological macromolecules Vol. 253; p. 127195
• Main Authors: Hamzaoui, Salwa, Salah, Bochra Ben, Bouguerra, Soumaya, Hamden, Khaled, Alghamdi, Othman A., Miled, Nabil, Kossentini, Mohamed
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 31.12.2023
• Subjects: 1,ω-bis(1-tosylamidrazone)alkanes; 1,ω-bis(5-alkyl-3-tosyl-1,3,4,2-triazaphospholine-2-oxide)alkanes; Diabetes; Lawesson's reagent; Obesity; Trisdimethylaminophosphine; Trisdimethylaminophosphine; Obesity; Diabetes; 1,ω-bis(1-tosylamidrazone)alkanes; 1,ω-bis(5-alkyl-3-tosyl-1,3,4,2-triazaphospholine-2-oxide)alkanes; Lawesson's reagent
• ISSN: 0141-8130; 1879-0003
• DOI: 10.1016/j.ijbiomac.2023.127195

A series of new 1,ω-bis-(5-alkyl-3-tosyl-1,3,4,2-triazaphospholino)alkanes 2 and 3 were obtained in excellent yields by the condensation of 1,ω-bis-(1-tosylamidrazone)alkanes 1 with two equivalent molars of Lawesson's Reagent (LR) and trisdimethylaminophosphine, respectively. All synthesized compounds were characterized by various spectroscopic techniques including IR, 1H NMR, 13C NMR and 31P NMR and elemental analysis. The newly synthesized compounds were evaluated against key enzymes related to diabetes and obesity such as α-amylase and lipase. This study showed that the compounds 3a and 2b are an excellent inhibitor of α-amylase (with IC50 = 18.8 mM) and lipase (with IC50 = 19 mM) respectively, as compared with standard, orlistat (IC50 = 22 mM). Among this series, compounds 3a and 2b with the CH3 or C2H5 group at position 6 were identified as the most potent inhibitors against α-amylase, and lipase enzymes. The remaining compounds were found to be moderately active. Further, molecular docking simulation studies were done to identify the interactions and binding mode of synthesized analogs at binding site of α-amylase and lipase enzymes. [Display omitted] •A series of New 1,ω-Bis-(5-alkyl-3-tosyl-1,3,4,2-triazaphospholin)alkanes was synthesized.•All the new compounds were screened for their inhibitory effect on the key enzymes related to diabetes and obesity, as α-amylase and lipase.•The obtained results explored which derivatives exert an inhibitory action had an inhibitory effect on the activities of α-amylase and lipase.•The molecular modelling of the tested compounds to α-amylase and lipase enzyme was investigated.