Nitrile is any organic compound with a −C≡N functional group. 3032-92-6, formula is C9H5N, Name is 4-Ethynylbenzonitrile.The prefix cyano- is used interchangeably with the term nitrile in literature. Recommanded Product: 4-Ethynylbenzonitrile.
Qin, Yinhui;Sun, Min;Zhang, Na;Yang, Yan;Ma, Peizhi research published 《 Synthesis and biological evaluation of antibacterial activity of novel clarithromycin derivatives incorporating 1,2,3-triazole moieties at the 4′′- and 11-OH positions》, the research content is summarized as follows. Bacterial infection is still one of the diseases that threaten human health, and bacterial drug resistance is widespread worldwide. As a result, their eradication now largely relies on antibacterial drug discovery. Here, we reveal a novel approach to the development of 14-membered macrolide antibiotics by describing the design, synthesis, and evaluation of novel clarithromycin derivatives incorporating 1,2,3-triazole moieties at the 4′′- and 11-OH positions. Using chem. synthesis, I [R1 = H, 4-Me, 4-Et, etc.,], II [R2 = 4-Et, 4-Pr, 4-tert-Bu, etc.,] were prepared, and their antibacterial properties were profiled. We found that compounds I = [R1 = 4-Bu, 4-n-pentyl, 4-n-hexyl and 4-Ph, 4-n-pentoxy, 4-F, 4-Cl, 4-Br, 3,5-bis(trifluoromethyl)] and II = [R2 = 4-n-pentyl] were as potent as azithromycin against Enterococcus faecalis ATCC29212. Furthermore, compounds I = [R1 = 4-Et, 4-Pr, 4-Cl and 4-Br] showed slightly improved antibacterial activity (2-fold) against Acinetobacter baumannii ATCC19606 when compared with azithromycin and clarithromycin. In addition, compounds I = [R1 = 4-Bu, 4-n-pentyl, 4-Ph, 4-n-pentoxy and 3,5-bis(trifluoromethyl)] exhibited excellent antibacterial activity against Staphylococcus aureus ATCC43300, Staphylococcus aureus PR, and Streptococcus pneumoniae ER-2. These compounds were generally 64- to 128-fold more active than azithromycin, and 32- to 128-fold more active than clarithromycin. The results of mol. docking indicated that compound 8f may bind to the nucleotide residue A752 through hydrogen-bonding, hydrophobic, electrostatic, or π-π stacking interactions. The predicted ClogP data suggested that higher values of ClogP (>6.65) enhanced the antibacterial activity of compounds such as I = [R1 = 4-Bu, 4-n-pentyl, 4-Ph, 4-n-pentoxy and 3,5-bis(trifluoromethyl)]. The determination of the min. bactericidal concentration showed that most of the tested compounds were bacteriostatic agents. From this study of bactericidal kinetics, we can conclude that compound 8f had a concentration- and time-dependent effect on the proliferation of Staphylococcus aureus ATCC43300. Finally, the results of the cytotoxicity assay showed that compound I = [R1 = 4-n-pentyl] exhibited no toxicity at the effective antibacterial concentration
Recommanded Product: 4-Ethynylbenzonitrile, 4-Ethynylbenzonitrile is a simple benzyl alkyne compound potentially useful as a synthetic fragment and as a test compound for cross-coupling protocols. 4-Ethynylbenzonitrile has been described as a model compound for studying hydrogen bond formation in multifunctional molecules, as it contains four hydrogen bonding sites of which three are π-acceptors.
4-Ethynylbenzonitrile is a useful research compound. Its molecular formula is C9H5N and its molecular weight is 127.14 g/mol. The purity is usually 95%., 3032-92-6.
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts