Title:Synthesis and Antibacterial Activity of Amide Derivatives from Dihydrocumic Acid
Volume: 10
Issue: 7
Author(s): Gao Yan-qing, Shang Shi-bin, Wang Dan and Cui Yan-jie
Affiliation:
Keywords:
β-pinene, Dihydrocumic acid, Amide, Antibacterial activity, Inhibition zone.
Abstract: Dihydrocumic acid was prepared from β-pinene through oxidation and dehydration. Then a series of amide derivatives
from dihydrocumic acid were synthesized. Reaction conditions of dihydrocumic acid were discussed and structures
of amide derivatives were characterized by IR, 1H NMR, MS, and X-ray diffraction. The antibacterial activities of
these newly synthesized amide derivatives against six bacteria were also investigated by an inhibition zone method. It was
shown that compounds 5a, 5b, 5d, and 5f display better anti-bacterial activities with inhibition zones 11.83, 12.33, 10.83
and 12.67 mm against Escherichia coli compared with Bromogeramine (9.67 mm), one commercially available antibacterial
agent, and compounds 5a and 5d display better anti-bacterial activities against Staphyloccocus aureu compared with
Ampicillin Na.
