Results 201 to 210 of about 8,237 (245)

Limonoids from the Fresh Young Leaves and Buds of Toona sinensis and Their Potential Neuroprotective Effects.

Journal of Agricultural and Food Chemistry, 2020
Toona sinensis, popularly known as Chinese toon or Chinese mahogany, is a perennial deciduous arbor belonging to the genus Toona in the Meliaceae family, which is widely distributed and cultivated in eastern and southeastern Asia.
Yan-Hui Fu, Yu-Tong Xie, Jia-Ming Guo, Xiao-ping Wang, B. Jiang, Wei Zhang, L. Qiang, Lingli Kong, Yan-Ping Liu   +8 more
semanticscholar   +1 more source

Divergent Total Syntheses of Phragmalin and Khayanolide-Type Limonoids: A Torquoselective Interrupted Nazarov Approach.

Journal of the American Chemical Society
The asymmetric and divergent total syntheses of two phragmalin (moluccensins G and H) and two khayanolide-type (krishnolide F and khayseneganin F) limonoids were disclosed, which employed a torquoselective interrupted Nazarov cyclization as the key step.
Peirong Rao, Dongmin Tang, Qidong Xia, Jialei Hu, Xufeng Lin, Jun Xuan, H. Ding   +6 more
semanticscholar   +1 more source

Characterization of Limonoids Isolated from the Fruits of Melia toosendan and Their Antifeedant Activity against Pieris rapae

Chemistry and Biodiversity, 2020
The fruits of Melia toosendan Sieb. et Zucc. (Meliaceae) are a source of bioactive limonoids that can be used as effective pesticides. In this study, two novel limonoids, 6‐acetylsendanal and 6‐ketocinamodiol, were isolated together with fourteen known ...
Hao Wang, Hao Dong, Qing-Ming He, Jilei Liang, Te Zhao, Lin Zhou   +5 more
semanticscholar   +1 more source

Limonoids from Turraea floribunda (Meliaceae)

Phytochemistry, 2004
Six novel limonoids and limonoid derivatives, turraflorins D-I along with the known turraflorins A and B have been isolated from seed of the South African Turraea floribunda (Meliaceae).
Kathryn, McFarland, Dulcie A, Mulholland, Leigh-Anne, Fraser   +2 more
openaire   +2 more sources

Limonoids: Advances in Extraction, Characterization, and Applications

Food reviews international (Print)
Limonoids are highly oxygenated terpenoids that occur exclusively in certain plant families. Meliaceae and Rutaceae encompass many limonoids with a myriad of biological potential.
Fatema R. Saber, Hajar Salehi, Moustafa Ali Khallaf, Komal Rizwan, Mostafa M. Gouda, Shakeel Ahmed, Gökhan Zengin, Leilei Zhang, Jaruporn Rakmai, Elena Secomandi, Luigi Lucini, Jesus Simal-gandara   +11 more
semanticscholar   +1 more source

Limonoid derivatives from Astrotrichilia voamatata

Phytochemistry, 2000
The stem bark of Astrotrichilia voamatata (Meliaceae) has yielded the novel limonoids voamatins C and D. These compounds represent a new type of pentanortriterpenoid and are unique in containing a ring A cyclic ether.
D A, Mulholland, M, Randrianarivelojosia, C, Lavaud, J M, Nuzillard, S L, Schwikkard   +4 more
openaire   +2 more sources

Melanogenesis‐Inhibitory Activities of Isomeric C‐seco Limonoids and Deesterified Limonoids

Chemistry & Biodiversity, 2016
Treatment of eight C‐seco limonoids including six of salannin‐type, 1 – 6, and two of nimbin‐type, 7 and 8, with a combination of BF3 · Et2O and iodide ion yielded the isomeric C‐seco derivatives, i.e., six isosalannins, 1a – 6a, and two isonimbins, 7a and 8a, respectively.
Toshihiro, Akihisa, Maiko, Horiuchi, Masahiro, Matsumoto, Eri, Ogihara, Kenta, Ishii, Jie, Zhang   +5 more
openaire   +2 more sources

Cytotoxic Limonoids from Melia azedarach

Planta Medica, 2012
Five new compounds (1-5), including two limonoids, one triterpenoid, one steroid, and one sesquiterpenoid, along with nine known limonoids (6-14), were isolated from the bark of Melia azedarach. The structures of the new compounds were elucidated by 2D NMR spectroscopy and mass spectrometry.
Chun-Mao, Yuan, Yu, Zhang, Gui-Hua, Tang, Yan, Li, Hong-Ping, He, Shi-Fei, Li, Li, Hou, Xing-Yao, Li, Ying-Tong, Di, Shun-Lin, Li, Hui-Ming, Hua, Xiao-Jiang, Hao   +11 more
openaire   +2 more sources

Degraded limonoids from Melia azedarach

Phytochemistry, 1998
Two new degraded limonoids, azedararide and 12alpha-acetoxy fraxinellone, were isolated together with two known degraded limonoids, fraxinellone and fraxinellonone, as ichthyotoxic substances from the root bark of Melia azedarach. Their structures were elucidated by spectroscopic and chemical means.
Munehiro, Nakatani, Ruo Chun, Huang, Hiroaki, Okamura, Tetsuo, Iwagawa, Kenjiro, Tadera   +4 more
openaire   +2 more sources

Limonoids from Ekebergia pterophylla

Phytochemistry, 1984
Abstract The seed of Ekebergia pterophylla contains limonoids closely related to methyl angolensate, and similar to those of other Ekebergia species. This serves as evidence to support the taxonomic position of the species which has been disputed.
Anne R.H. Taylor, David A.H. Taylor
openaire   +1 more source