41755-79-7Relevant academic research and scientific papers
Bioactive phenylethanoids and coumarines from basalmocitrus cameroonensis
Wansi, Jean Duplex,Djouaka Bavoua, Judith Liliane,Happi, Emmanuel Ngeufa,Devkota, Krishna Prasad,Lenta, Bruno Ndjakou,Mesaik, Muhammed Ahmed,Choudhary, Muhammad Iqbal,Fomum, Zacharias Tanee,Sewald, Norbert
, p. 452 - 458 (2009)
Two new phenylethanoids, basalefhanoid A (1) and B (2), and one new ceramide, basalamide A (3), together with eleven known compounds (4-14) were isolated from the MeOH extract of the stem barks of Basalmocitrus cameroonensis. The structures of all compoun
Abubidentin A, New Oleanane-type Triterpene Ester from Abutilon bidentatum and its antioxidant, cholinesterase and antimicrobial activities
Al-Hamoud, Gadah A.,Al-Musayeib, Nawal M.,Amina, Musarat,Ibrahim, Sabrin R. M.
, (2022/03/18)
Background. This work describes the phytochemical and biological investigation of aerial parts of Abutilon bidentatum Hochst. Of Saudi origin. Methodology. Petroleum ether fraction of ethanolic extract A. bidentatum was fractionated on a silica gel column and further purified with different chromatographic procedures for the isolation of chemical compounds. The chemical structures of all the pure isolated compounds were elucidated by the interpretation of their spectral data using IR, UV, 1H, 13C NMR, and MS spectroscopy and chemical methods (alkaline hydrolysis) as well as comparison with data reported in the literature. The extract and isolated compounds were evaluated for antioxidant, cholinesterase inhibitory, and antimicrobial activities. Results. A new oleanane-type triterpene ester, namely abubidentin A (3) (α, 3β, 30-trihydroxy-29-carboxy-olean-9(11), 12-diene-3-dotriacontanoate), along with two known compounds: 2-hydroxydocosanoic acid (1) and stigmasta-22-ene-3-β-ol (2) were isolated from the aerial parts of Abutilon bidentatum Hochst. (Malvaceae). Concerning the biological potential, the abubidentinA displayed antioxidant, cholinesterase inhibitory and antimicrobial activities. AbubidentinA possessed strong antioxidant activity against DPPH and ABTS+ radical scavenging assays. This new triterpene exhibited high inhibition against acetylcholinesterase (IC50 38.13 ± 0.07 μgmL?1) and butyrylcholinesterase (IC50 32.68 ± 0.37 μgmL?1). Abubidentin A displayed promising antimicrobial activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus (125-150 μgmL?1). Conclusion. These findings suggest A. bidentatum can contribute as a source of new biologically active compounds, especially antioxidants and antimicrobial agents.
A New Synthesis of Long Chain Acid Esters and Carbinols
Rao, S. Jagadishwar,Bhalerao, U. T.,Tilak, B. D.
, p. 208 - 211 (2007/10/02)
A versatile synthesis of difficulty accessible long chain acid esters and carbinols is described.The synthesis involves acylations at 2- and 5-positions of thiophene.Thioketalation of the resulting ketoesters followed by Raney nickel desulfurization yield acid esters which on LAH reduction give the corresponding carbinols.
Lacceryl laccerate: Major Wax Component Produced by Anomoneura mori Schwarz (Homoptera: Psyllidae)
Kuwahara, Yasumasa
, p. 1297 - 1300 (2007/10/02)
The major wax component secreted by Anomoneura mori Schwarz nymph was identified as laccerate, n-dotriacontyl n-dotriacontanoate.Its content in the wax 93.8percent.
