Results 171 to 180 of about 4,751 (200)

Limonoids from Astrotrichilia voamatata

Phytochemistry, 1999
The stem bark of Astrotrichilia voamatata (Meliaceae) yielded the novel limonoids voamatin A and voamatin B. The stem bark of Cipadessa boivinina (Meliaceae) yielded sitosterol and stigmast-4-en-3-one, but no limonoids.
Dulcie A. Mulholland, Sianne L. Schwikkard, Milijaona Randrianarivelojosia   +2 more
openaire   +1 more source

Limonoids from Clausena anisata

Journal of Natural Products, 1989
Five tetranortriterpenoids have been isolated from the stem bark and roots of Clausena anisata. The known compounds were identified spectroscopically as limonin, zapoterin and clausenolide. The novel compounds include clausenolide-1-ethyl ether and clausemarin. The isolation of these limonoids from C.
Bonaventure Tchaleu Ngadjui, Johnson Foyere Ayafor, Beibam Lucas Sondengam, Joseph Donald Connolly   +3 more
openaire   +1 more source

Limonoids from Melia toosendan

Phytochemistry, 1999
Abstract Four limonoids were isolated from Melia toosendan together with two known limonoids, nimbolinin B and its 1-deacetyl derivative. Among the new limonoids included one skeletal spiro-, one ring- C-seco nimbolinin-type, and two trichilinin-type apo-euphol-triterpenoids derivatives.
Munehiro Nakatani, Motonari Shimokoro, Jian-Bo Zhou, Hiroaki Okamura, Tetsuo Iwagawa, Kenjiro Tadera, Noboru Nakayama, Hideo Naoki   +7 more
openaire   +1 more source

Limonoids from Nymania capensis

Phytochemistry, 1982
Abstract The bark and timber of Nymania capensis contain prieurianin and other complex limonoids, four of which have been identified. The chemical evidence serves to support the taxonomic position of Nymania in the family Meliaceae.
Lesley K. MacLachlan, David A.H. Taylor
openaire   +2 more sources

Limonoid glucosides in citrus

Phytochemistry, 1989
Abstract Citrus contained high concentrations of limonoid glucosides. Four new glucosides, isolated from grapefruit seeds, were identified as limonin 17- O -β- d -glucopyranoside, nomilin 17- O -β- d -glucopyranoside, deacetylnomilin 17- O -β- d -glucopyranoside and obacunone 17- O -β- d -glucopyranoside.
Shin Hasegawa, Raymond D. Bennett, Zareb Herman, Chi H. Fong, Peter Ou   +4 more
openaire   +1 more source

Limonoids from Turraea floribunda

Phytochemistry, 1995
Abstract Extracts of the root bark of Turraea floribunda have yielded four new limonoids of the havanensin class: 28-nor-4α-carbomethoxy-11β-acetoxy-12α-(2-methylbutanoyloxy)-14,15-deoxyhavanensin-1,7-diacetate; 28-nor-4α-carbomethoxy-11β-hydroxy-12α-(2-methylbutanoyloxy)-14,15-deoxyhavanensin-1,7-diacetate; 18-nor-4α-carbomethoxy-11β-acetoxy-12α ...
Hassanali, Ahmed, Torto, B., Bentley, M. D., Cole, B. J. W., Huang, F. Y., Gelbaum, L., Vanderveer, D. G.   +6 more
openaire   +1 more source

Limonoids from Ekebergia capensis

Phytochemistry, 1998
Abstract The hexane extract of the seed of Ekebergia capensis (Meliaceae) yielded the novel limonoids, capensolactones 1–3 and the previously isolated methyl 3α-hydroxy-3-deoxyangolensate. Structures were determined by 2D NMR, mass spectroscopy and chemical methods.
Dulcie A. Mulholland, Serge E. Iourine
openaire   +1 more source

Limonoids from Aphanamixis polystacha

Phytochemistry, 1999
The hexane extract of the seed of Aphanamixis polystacha (Meliaceae) has yielded kihadalactone A and three novel limonoids, rohituka-12, rohituka-13 and rohituka-14. The substitution at C-1 of polystachin has been re-assigned as α.
Dulcie A. Mulholland, Nesan Naidoo
openaire   +1 more source

Isolation of bioactive limonoids from the fruits of Melia azedarach

Journal of Asian natural products research, 2020
Two previously undescribed limonoids, 1-O-benzoyl-3-O-deactylnimbolinin C (1) and a pair of epimers named toosendalactonins A and B (12a and 12b), together with ten known compounds (2−11) were isolated from the fruits of Melia azedarach L.
S. Park, N. X. Nhiem, Lalita Subedi, Ikhoon Oh, Ji-Young Kim, S. Kim, Seung-Hyun Kim   +6 more
semanticscholar   +1 more source

Limonoids from Trichilia hirta

Phytochemistry, 1992
Abstract From the fruits and leaves of Trichilia hirta were isolated, besides sitosterol and sitostenone, two novel limonoids: methyl 11β-acetoxy-6-hydroxy-12α-(2-methylpropionyloxy)-3,7-dioxo-1,5,14,20,22-meliacapentaen-29-oate and methyl 11β-acetoxy-6,23-dihydroxy-12α-(2-methylpropionyloxy)-3,7,21-trioxo-1,5,14,20-meliacatetraen-29-oate.
Diógenes A.G. Cortez, Paulo C. Vieira, João B. Fernandes, M. Fátima G.F. da Silva, A. Gilberto Ferreira   +4 more
openaire   +1 more source