Four new flavonol glycosides were isolated from the leaves of Brugmansia suaveolens: kaempferol 3-O-β-D-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside (1), kaempferol 3-O-β-D-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside-7-O-į-D-gluco-pyranoside (2), kaempferol 3-O-β-D-[6'''-O-(E-caffeoyl)]-glucopyranosyl-(1'''→2'')-O-α-l-arabinopyranoside-7-O-β-D-glucopyranoside (3), and kaempferol 3-O-...

Three novel triterpene glycosides (1 – 3), namely lycicoside I, II and cilicicoside I, were isolated from two different Cephalaria (Dipsacaceae) species along with one known oleananeand one iridoit-type of glycoside. The structures of these compounds were established as 3-O-[β -D-glucopyranosyl(1→3)-α-L-rhamnopyranosyl(1→4)-β -D-xylopyranosyl(1→4)-β -D-xylopyranosyl]-28-O-[β -Dglucopyranosyl(1→...

Phytochemical examination of Convallaria majalis (Liliaceae) whole plants yielded 15 steroidal glycosides (1-15), including nine new compounds (4-6, 10-15) with a lycotetrose unit. The structures of the new compounds were determined using two-dimensional Nuclear magnetic resonance (NMR) analyses and chemical methods. The isolated compounds were evaluated for cytotoxicity against HL-60 human pro...

A UDP glucosyltransferase from Bacillus licheniformis was overexpressed, purified, and incubated with nucleotide diphosphate (NDP) d- and l-sugars to produce glucose, galactose, 2-deoxyglucose, viosamine, rhamnose, and fucose sugar-conjugated resveratrol glycosides. Significantly higher (90%) bioconversion of resveratrol was achieved with α-d-glucose as the sugar donor to produce four different...

The title compound, (C(6)H(11)N(2))(4)[Mo(8)O(26)] or (emim)(4)[β-Mo(8)O(26)] (emim is 1-ethyl-3-methyl-imidazolium), was obtained from the ionic liquid [emim]BF(4). The asymmetric unit contains two [emim](+) cations and one-half of the [β-Mo(8)O(26)](4-) tetra-anion, which occupies a special position on an inversion centre. The β-[Mo(8)O(26)](4-) tetra-anion features eight distorted MoO(6) coo...

Four novel phenolic compounds (1-4) were isolated from the leaves of Crataegus pinnatifida, along with three known ones (5-7). Their structures were elucidated as: methyl 4-O-β-D-glucopyranosyl-3-[(2E,6E)-8-O-β-D-glucopyranosyl-3,7-dimethyl-2,6-octadienyl] benzoate (1), biphenyl-5-ol-3-O-β-D-glucoside (2), 3,4'-dimethoxy-biphenyl-5-ol-4-O-β-D-glucoside (3), (E)-6-(benzoyloxy)-1-hydroxyhex-3-en-...

this study aimed to determine phenolic compounds of artemisia spicigera (family asteraceae) growing in east-azarbaijan province of iran. 20%, 40 % and 60% spe fractions of methanolic extract of a. spicigera, were subjected to reversed phase preparative hplc, with the mobile phase consisted of methanol and water. structural identification of phytochemicals by spectroscopic methods including uv a...

OBJECTIVE To evaluate the feasibility of using magnetic iron oxide (Fe(3)O(4))-dextran-anti-β-human chorionic gonadotropin (HCG) nanoparticles as a gene vector for cellular transfections. STUDY DESIGN Fe(3)O(4)-dextran-anti-β-HCG nanoparticles were synthesized by chemical coprecipitation. The configuration, diameter, and iron content of the nanoparticles were detected by transmission electron...