Results 171 to 180 of about 5,751 (220)

Meliaceous Limonoids: Chemistry and Biological Activities

Chemical Reviews, 2011
Natural Science Foundation of China[30000213, 30370160, 30670214]; National Basic Research Program of China (973 Program)[2009CB522300]; Chinese Academy of ...
Qin-Gang Tan, Xiao-Dong Luo
exaly   +3 more sources

Limonoids from Cedrela sinensis

Phytochemistry, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Kumiko, Mitsui, Masato, Maejima, Haruhiko, Fukaya, Yukio, Hitotsuyanagi, Koichi, Takeya   +4 more
openaire   +2 more sources

Limonoids of Teclea ouabanguiensis

Journal of Natural Products, 1986
The stem bark of Teclea ouabanguiensis has yielded six triterpenoids, two of which are new. The known compounds were identified spectroscopically as 7-deacetylazadirone (2), 7-deacetylproceranone (3), tecleanin, (4), and lupeol. The novel compounds include the tetranortriterpenoids, 7-deacetoxy-7-oxoazadirone (1), and ouabanginone (5).
J F, Ayafor, B L, Sondengam, A N, Bilon, J D, Connolly   +3 more
openaire   +2 more sources

limonoids from Khaya senegalensis

Phytochemistry, 1998
A new limonoid was isolated from the bark of Khaya senegalensis and identified as 2,6-dihydroxyfissinolide. The assignments of some signals in the (13)C NMR spectrum of fissinolide have been reversed and the signals of the (1)H NMR spectrum of methyl 3beta-acetoxy-6-hydroxy-1-oxomeliac-14-enoate have been assigned.
Khalid, Sami, Friedrichsen, Gerda, Kharazmi, Arsalan, Theander, Thor, Olsen, Carl, Brøgger Christensen, S   +5 more
openaire   +2 more sources

Limonoids from Cipadessa baccifera

Journal of Natural Products, 2020
Eighteen new limonoids, including eight methyl angolensates (1-8) and 10 cipadesins (9-18), were isolated from the leaves of Cipadessa baccifera. Their structures were characterized by means of spectroscopic data analyses, single-crystal X-ray diffraction, and quantum chemistry computational methods. The C-6 configurations in those compounds possessing
Jin-Hai Yu, Hua Zhang, Bin Zhou, Flavia M. Zimbres, Seema Dalal, Qun-Fang Liu, Maria B. Cassera, Jian-Min Yue   +7 more
openaire   +2 more sources

Limonoid biosynthesis 3: Functional characterization of crucial genes involved in neem limonoid biosynthesis

Phytochemistry, 2021
Neem (Azadirachta indica L.) is well known for its medicinal, agricultural, and pesticidal applications since ages. The secondary metabolites, limonoids, confer these biological properties, wherein over 150 different limonoids have been reported from neem.
Avinash, Pandreka, Patil S, Chaya, Ashish, Kumar, Thiagarayaselvam, Aarthy, Fayaj A, Mulani, Date D, Bhagyashree, Shilpashree H, B, Cheruvathur, Jennifer, Sudha, Ponnusamy, Dinesh, Nagegowda, Hirekodathakallu V, Thulasiram   +10 more
openaire   +2 more sources

Limonoids from Azadirachta excelsa

Phytochemistry, 1998
Activity-directed fractionation of a stem extract of Azadirachta excelsa using KB (human oral epidermoid carcinoma) cells led to the isolation of four meliacin-type limonoids. Two of these constituents were novel, namely, 2,3-dihydronimbolide and 3-deoxymethylnimbidate, and these were purified along with the known compounds, nimbolide and 28 ...
B, Cui, H, Chai, H L, Constant, T, Santisuk, V, Reutrakul, C W, Beecher, N R, Farnsworth, G A, Cordell, J M, Pezzuto, A D, Kinghorn   +9 more
openaire   +2 more sources

A limonoid from Trichilia estipulata

Phytochemistry, 2000
The limonoid 21,24,25,26,27-pentanor-15,22-oxo-7alpha,23-dihydroxy-apotirucalla(eupha)-1-en-3-one was isolated from the dichloromethane extract of the stem bark of Trichilia estipulata. Its structure was established by spectroscopic methods (UV, EIMS, 1H and 13C NMR, HMQC and HMBC).
D A, Cortez, J B, Fernandes, P C, Vieira, M F, da Silva, A G, Ferreira   +4 more
openaire   +2 more sources

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

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