54192-87-9

Upstream product

• 74-88-4 methyl iodide 
• 75804-23-8 C₅₄H₉₀O₁₅ 
• 90138-32-2 C₆₆H₁₁₀O₂₃ 
• 89355-04-4 C₆₄H₁₀₆O₂₂ 
• 90138-33-3 C₅₇H₉₄O₁₈ 
• 89837-89-8 salsoloside C permethylate 
• 89837-91-2 C₄₈H₇₈O₁₃ 
• 81410-48-2 5-Benzo[1,3]dioxol-5-yl-9-((3R,4S,5R)-3,4,5-trimethoxy-tetrahydro-pyran-2-yloxy)-8H-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6-one 

Downstream Products

• 14550-95-9 2,3,4-tri-O-methyl-meso-xylitol 
• 58886-14-9 (2R,3S,4R)-5,5-Bis-benzylsulfanyl-2,3,4-trimethoxy-pentan-1-ol 

Relevant academic research and scientific papers

Antibacterial activity of a triterpenoid saponin from the stems of Caesalpinia pulcherrima Linn.

A new compound 1 was isolated from the methanolic extract of the stems of the Caesalpinia pulcherrima Linn. along with a reported compound (2) 3-O-β-D-glucopyranosyl-(1→4)-β-D-xylopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranosyl hederagenin 28-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester. The new compound 1 has m.p. 272–274°C, m.f. C46H74O17, [M]+ m/z 898. It was characterised as 3-O-β-D-glucopyranosyl-(1→4)-α-L-arabinopyranosyl hederagenin 28-O-β-D- xylopyranosyl ester by various colour reactions, chemical degradations and spectral analyses. Antibacterial activity of compound 1 was screened against various Gram-positive and Gram-negative bacteria and showed significant results.

A new flavonoidal constituent from taraxacum officinale (L.) weber

A new flavone glycoside (A) m.p. 265-268 °C, m.f. C33H 40O21, [M]+ 742 (FABMS), has been isolated from stem of Taraxacum oficinale (L.) Weber. It was characterized as 3,5,7,3',4'-pentahydroxy 8-C methyl flavone 7-O-β-D-xylopyranosyl (14)O-β-D glucopyranosyl 3'- O-α-L-rhamnopyranoside alongwith known compound ladanein B by various chemical degradations and spectral analysis.

TRITERPENE GLYCOSIDES OF Salsola micranthera. II. THE STRUCTURE OF SALSOLOSIDE E

A new triterpene glycoside - salsoloside E - has been isolated from the epigeal part of the plant Salsola micranthera Botsch. family Chenopodiaceae.On the basis of chemical transformations and physicochemical characteristics its structure has been established as oleanoic acid 28-O-β-D-glucopyranoside 3-O-2)>4)>-β-D-glucuronopyranoside>.

TRITERPENE GLYCOSIDES OF Climacoptera transoxana. III. THE STRUCTURES OF COPTEROSIDES E AND F

New triterpene glycosides have been isolated from the epigeal part of Climacoptera transoxana (Iljin) Botsch. - copterosides E and F.According to chemical transformations and physicochemical characteristics, copteroside E has the structure of oleanolic acid 28-O-β-D-glucopyranoside 3-O-2)>-4)>-β-D-glucuronopyranoside> and copteroside F that of hederagenin 28-O-β-D-glucopyranoside 3-O-2)>-4)>-β-D-glucopyranoside>.

TRITERPENE GLYCOSIDES OF Salsola micranthera. I. STRUCTURES OF SALSOLOSIDES C AND D

New triterpene glycosides - salsolosides C and D - have been isolated from the epigeal part of Salsola micranthera Botsch.On the basis of chemical transformations and physicochemical measurements, salsoloside C has been assigned the structure of oleanolic acid 28-O-β-D-glucopyranoside 3-O-4)-β-D-glucuropyranoside>, and salsoloside D has the structure of hederagenin 28-O-β-D-glucopyranoside 3-O-4)-β-D-glucuropyranoside>.

NEM LIGNANS FROM THE HEARTWOOD OF CLEISTANTHUS COLLINUS

The isolation and characterisation of five new compounds and nine known compounds from the heartwood of Cleistanthus collinus are reported.The new compounds are wodeshiol 16, 3,4-dihydrotaiwanin C 20, and three new glycosides 24, 25 and 26 of diphyllin and taiwanin E.The 1H and 13C NMR spectra of these compounds are also reported.