Results 111 to 120 of about 1,686 (179)

In vitro biological activities of silver nanoparticles using methanolic leaf extract of Plumeria rubra. [PDF]

Sci Rep
Marukurti A, Reddy AM, Nirmala PV, Kalyani D, Ramaneswari K, Padmavathi IJN, Pemmaraju LP, Silvanus GS, Keerthana BS, Farhana S, Ramachandran D, Mallikarjuna B, Kasi PB.   +12 more
europepmc   +1 more source

Haplotype-resolved genome assembly of the upas tree (Antiaris toxicaria). [PDF]

Sci Data
Miao K, Wang Y, Hou L, Liu Y, Liu H, Ji Y.   +5 more
europepmc   +1 more source

Microbiome analysis of monarch butterflies reveals effects of development and diet. [PDF]

FEMS Microbiol Ecol
Sanaei E, Chavez J, Harris EV, Alcaide TY, Baffour-Addo K, Bugay MJ, Adams KL, Zelaya A, de Roode JC, Gerardo NM.   +9 more
europepmc   +1 more source

Nectar cardenolides and floral volatiles mediate a specialized wasp pollination system.

J Exp Biol
Burger H, Buttala S, Koch H, Ayasse M, Johnson SD, Stevenson PC.   +5 more
europepmc   +1 more source

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Cytotoxicity of cardenolides and cardenolide glycosides from Asclepias curassavica

Bioorganic and Medicinal Chemistry Letters, 2009
A new cardenolide, 12beta,14beta-dihydroxy-3beta,19-epoxy-3alpha-methoxy-5alpha-card-20(22)-enolide (6), and a new doubly linked cardenolide glycoside, 12beta-hydroxycalotropin (13), together with eleven known compounds, coroglaucigenin (1), 12beta-hydroxycoroglaucigenin (2), calotropagenin (3), desglucouzarin (4), 6'-O-feruloyl-desglucouzarin (5 ...
Chen Qing, Xiaojiang Hao, Hai-Yang Liu   +2 more
exaly   +3 more sources

Aldimines of Cardenolides and Cardenolide-Glycosides

Chemistry of Natural Compounds, 2005
New aldimines were synthesized from the cardenolide strophantidin and cardenolide-glycosides erysimin and cymarin and included morpholine, nitrile, pyridine, furan, hydroxy- and methoxyphenyl, piperidine, and other derivatives. An effective modified method for synthesizing aldimines was proposed. 52 new compounds were synthesized. Their structures were
I. F. Makarevich, Yu. I. Gubin, R. Megges   +2 more
openaire   +1 more source

Synthesis of cardenolide glycosides and putative biosynthetic precursors of cardenolide glycosides

Steroids, 1998
A rapid and efficient procedure for glycosylation of steroids was established using a modified Koenigs-Knorr procedure. Peracetylated beta-glycosides were synthesized by reaction of cardenolides, various pregnanes and 23-nor-5,20(22)E-choldienic acid at room temperature with the peracetylated 1-bromo derivatives of D-glucose, D-galactose, D-fucose and ...
M, Luta, A, Hensel, W, Kreis
openaire   +2 more sources

Ketoimines of Cardenolides

Chemistry of Natural Compounds, 2005
3-Keto-derivatives of the cardenolides digitoxigenin and cardiogenin were prepared with subsequent conversion to new ketoimines (1–19, 24–44), the oxime (23), and for the first time to pure cardiogenin (14,16-dianhydrogitoxigenin, 20), its acetate (21), and cardiogenone (22). Their physicochemical properties were described.
I. F. Makarevich, Yu. I. Gubin, R. Megges   +2 more
openaire   +1 more source

ChemInform Abstract: PARTIAL SYNTHESES OF CARDENOLIDES AND CARDENOLIDE ANALOGS. VIII. LACTONE RING‐ALKYLATED CARDENOLIDES

Chemischer Informationsdienst, 1984
AbstractBehandeln der Cardenolide (I) mit NaH in DMF, anschließen de Zugabe der Alkylhalogenide (II) binnen fünf Minuten und Ansäuern der Ansätze liefern die Monoalkylderivate (III) als Hauptprodukte, daneben die Dialkylderivate (IV).
B. STRECKENBACH, P. FRANKE, R. HINTSCHE, H. J. PORTIUS, K. R. H. REPKE   +4 more
openaire   +1 more source