28161-50-4

Upstream product

• 55804-74-5 clitorin 
• 210100-16-6 6-bromo-6-deoxy-L-galactonolactone 
• 1226-39-7 p-nitrophenyl-β-D-fucopyranoside 
• 107091-16-7 methyl O-β-D-xylopyranosyl-(1<*>4)-3)>-O-α-L-rhamnopyranosyl-(1<*>2)-β-D-fucopyranoside 
• 76729-70-9 echinocystic acid-3-O-<β-D-xylopyranosyl(1->2)-α-L-arabinopyranosyl(1->6)-β-D-glucopyranoside>-28-O-<β-D-xylopyranosyl(1->3)-β-D-xylopyranosyl(1->4)-α-L-rhamnopyranosyl(1->2)><α-L-rhamnopyranosyl(1->6)>-β-D-glucopyranoside 
• 84954-97-2 chikusaikoside I 
• 74032-91-0 p-nitrophenyl α-D-fucopyranoside 
• 1207550-40-0 3-O-β-D-galactopyranosyl-(1->2)-[β-D-xylopyranosyl-(1->3)]-β-D-glucuronopyranosyl gypsogenin 28-O-α-L-arabinopyranosyl-(1->4)-α-L-arabinopyranosyl-(1->3)-β-D-xylopyranosyl-(1->4)-α-L-rhamnopyranosyl-(1->2)-β-D-fucopyranosyl ester 
• 1207550-42-2 3-O-β-D-galactopyranosyl-(1->3)-β-D-glucuronopyranosyl gypsogenin 28-O-β-D-xylopyranosyl-(1->3)-β-D-xylopyranosyl-(1->4)-α-L-rhamnopyranosyl-(1->2)-β-D-fucopyranosyl ester 
• 1467066-63-2 11-O-β-D-glucopyranosyloxy-5-methoxy-6-oxabenzochrysen-1-one 
• 1033607-50-9 chrysin 4'-O-α-D-6-deoxyallopyranoside 
• 77174-32-4 Zizyphus saponin I 
• 55466-05-2 Zizyphus saponin III 

Downstream Products

• 65310-00-1 (3S,4R,5S,6S)-2-methoxy-6-methyltetrahydro-2H-pyran-3,4,5-triol 
• 57472-03-4 methyl β-L-fucofuranoside 
• 57472-02-3 methyl α-L-fucofuranoside 
• 14687-15-1 methyl L-fucopyranoside 
• 1128-40-1 methyl β-L-fucopyranoside 
• 132867-76-6 1,2,3-tri-O-benzoyl-6-deoxy-α-L-galactopyranose 
• 135266-93-2 1,2,3,4-tetra-O-benzoyl-α-L-fucopyranoside 
• 180581-28-6 2,3,4-tri-O-benzoyl-L-fucopyranose 
• 138760-32-4 1,3-Di-O-benzoyl-β-L-fucopyranose 
• 138760-33-5 1,2,3-Tri-O-benzoyl-β-L-fucopyranose 
• 140223-15-0 (3S,4R,5R,6S)-6-methyltetrahydro-2H-pyran-2,3,4,5-tetrayl tetrabenzoate 
• 176776-17-3 benzyl L-fucopyranoside 
• 167612-34-2 phenyl 6-deoxy-2,3,4-tri-O-acetyl-1-thio-β-L-galactopyranoside 
• 196397-53-2 phenyl 2,3,4-tri-O-acetyl-1-thio-α-L-fucopyranoside 

Relevant academic research and scientific papers

FLAVONONES FROM CYCLOTRICHIUM NIVEUM

A new flavonone isosakuranetin 7-O-rhamnoside was isolated from Cyclotrichium niveum together with known flavonones isosakuranetin and eriodictyol 7-O-glucoside, the flavonones apigenin, apigenin 7-methyl ether, acacetin 7-O-rutinoside and the triterpenoids vergatic acid, oleanolic acid, β-amyrin and sitosterol.Key Word Index - Cyclotrichium niveum; Labiatea; whole plant; isosakuranetin; isosakuranetin 7-O-rhamnoside; eriodictyol 7-O-glucoside; flavones; triterpenes.

New triterpenoid saponin from the stems of Albizia adianthifolia (Schumach.) W.Wight

As part of our continuing study of apoptosis-inducing saponins from Cameroonian Albizia genus, one new triterpenoid saponin, named adianthifolioside J (1), together with the known gummiferaoside E (2), were isolated from Albizia adianthifolia stems. The s

Oleanane-type saponins and prosapogenins from Albizia julibrissin and their cytotoxic activities

Two undescribed oleanane-type saponins, julibrosides K–L, along with three undescribed oleanane-type prosapogenins, julibrosides M–O, were isolated from the stem bark of Albizia julibrissin Durazz. and the mild alkaline hydrolysate of the total saponin, r

Chemical Constituents from the Roots of Polygala arillata and Their Anti-Inflammatory Activities

A new compound, named arillatanoside E, which was elucidated as 3-O-β-D-glucopyranosyl presenegenin 28-O-β-D-xylopyranosyl-(1 - 3)-β-D-xylopyranosyl-(1 - 4)-α-L-rhamnopyranosyl-(1 - 2)-(4-O-acetyl)-β-D-fucopyranosyl ester, along with 11 known compounds was isolated from the ethanolic extract of the roots of Polygala arillata. The 11 known compounds were identified as oleanolic acid (2), 3′-E-3,4,5-trimethoxy cinnamoyl-6-benzoyl sucrose (3), trans-ferulic acid (4), trans-feruloyl-glucoside (5), feruloyl-glucoside (6), 2,4,6-trimethoxy-1-O-β-D-glycoside (7), 3-methoxy-4-hydroxybenzoic acid (8), monopentadecanoin (9), sinapic acid (10), p-hydroxybenzaldehyde (11), and palmitic acid (12). Among them, seven isolated compounds 1, 2, 4, 5, 7, 8, and 10 exhibited little cytotoxic activity on macrophage RAW 264.7 cells. Then, the inhibitory effects of 7 isolates on nitric oxide (NO) production in lipopolysaccharide-activated macrophages were evaluated. As a result, 3 compounds have significant anti-inflammatory activity, and they were arillatanoside E (1), oleanolic acid (2), and 2,4,6-trimethoxy-1-O-β-D-glycoside (7).

Melanogenesis-Inhibitory and Cytotoxic Activities of Triterpene Glycoside Constituents from the Bark of Albizia procera

Five oleanane-type triterpene glycosides including three new ones, proceraosides E-G (1-3), were isolated from a MeOH-soluble extract of Albizia procera bark. The structures of 1-3 were determined by use of NMR spectra, HRESIMS, and chemical methods. Compounds 1-5 exhibited inhibitory activities against the proliferation of the A549, SKBR3, AZ521, and HL60 human cancer cell lines (IC50 0.28-1.8 μM). Additionally, the apoptosis-inducing activity of compound 2 was evaluated by Hoechst 33342 staining and flow cytometry, while the effects of 2 on the activation of caspases-9, -8, and -3 in HL60 cells were revealed by Western blot analysis.

Acylated oleanane-type triterpene saponins from the flowers of Bellis perennis show anti-proliferative activities against human digestive tract carcinoma cell lines

Seven oleanane-type triterpene saponin bisdesmosides, perennisaponins N–T (1–7), were newly isolated from a methanol extract of daisy, the flowers of Bellis perennis L. (Asteraceae). The structures were determined based on chemical and physicochemical data and confirmed using previously isolated related compounds as references. The isolates, including 13 previously reported perennisaponins A–M (8–20), exhibited anti-proliferative activities against human digestive tract carcinoma HSC-2, HSC-4, and MKN-45 cells. Among them, perennisaponin O (2, IC50?=?11.2, 14.3, and 6.9?μM, respectively) showed relatively strong activities. The mechanism of action of 2 against HSC-2 was found to involve apoptotic cell death.

Leptocarposide: A new triterpenoid glycoside from Ludwigia leptocarpa (Onagraceae)

A new triterpenoid bidesmoside (leptocarposide) possessing an acyl group in their glycosidic moiety (1), together with the known luteolin-8-C-glucoside (2) and 1-O-β-D-glucopyranosyl-(2S,3R,8E)-2-[(R)-2-hydroxypalmitoylamino]-8- octadecen-1,3- diol (3) was isolated from the n-butanol-soluble fraction of whole plant of Ludwigia leptocarpa (Nutt) Hara (Onagraceae). Structure of compound 1 has been assigned on the basis of spectroscopic data (1H and 13C NMR, 1H-1H COSY, HSQC, HMBC, and ROESY), mass spectrometry, and by comparison with the literature. This compound was further screened for its potential antioxidant properties by using the radical scavenging assay model 2,2-diphenyl-1-picrylhydrazyl and reveals non-potent antioxidant activities, while compound 2 shows SC50 of 0,038 mM.

Phenylphenalenones and oxabenzochrysenones from the Australian plant Haemodorum simulans

Chemical investigation of the Australian plant Haemodorum simulans (Haemodoraceae) resulted in the isolation of two new phenylphenalenones, haemoxiphidone and haemodordioxolane from the bulbs together with the first report of an oxabenzochrysenone glycoside, haemodoroxychrysenose from the aerial parts of the plant. Also isolated were two previously described phenylphenalenones 5,6-dimethoxy-7-phenyl-1H,3H-naphtho[1,8-cd]pyran-1,3-dione and haemodorone and two oxabenzochrysenones 5-hydroxyl-2-methoxy-1H-naphtho[2,1, 8-mna]xanthen-1-one and 5-methoxy-1H-naphtho[2,1,8-mna]xanthen-1-one. The X-ray structure of the phenylphenalenone 5,6-dimethoxy-7-phenyl-1H,3H-naphtho[1,8-cd] pyran-1,3-dione was secured for the first time. All compounds were deduced by detailed spectroscopic analyses. HPLC-NMR chemical profiling of an enriched fraction containing a mixture of haemodordioxolane and 5,6-dimethoxy-7-phenyl- 1H,3H-naphtho[1,8-cd]pyran-1,3-dione facilitated the partial identification of these secondary metabolites. The structure previously assigned as xiphidone in our initial studies of this plant was re-assigned as the new isomer haemoxiphidone.

METHOD FOR PRODUCING L-FUCOSE

Method for producing L-fucose includes in a first aspect, a method for the preparation of L-fucose, wherein L-fucose precursors are produced from pectin and L-fucose is produced from the L-fucose precursors; in a second aspect, a method for the preparation of L-fucose from D-galacturonic acid or a salt thereof, wherein L-fucose precursors are produced from D-galacturonic acid of a salt thereof, and L-fucose is produced from the L-fucose precursors; and an L-fucose precursor as shown in Formula A, wherein R is a linear or branched chain saturated hydrocarbon group with 1-6 carbon atoms, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-butyl, n-hexyl, etc., preferably a methyl group.

METHOD FOR PRODUCING L-FUCOSE

The present invention provides: in a first aspect, a method for the preparation of L-fucose, wherein L-fucose precursors are produced from pectin and L-fucose is produced from the L-fucose precursors; in a second aspect, a method for the preparation of L-fucose from D-galacturonic acid or a salt thereof, wherein L-fucose precursors are produced from D-galacturonic acid or a salt thereof, and L-fucose is produced from the L-fucose precursors; and an L-fucose precursoras shown in Formula A below, wherein R is a linear or branched chain saturated hydrocarbon group with 1-6 carbon atoms, such as methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-butyl, n-hexyl, etc., preferably a methyl group.