ORGANIC SPECTROSCOPY INTERNATIONAL: Xanifolia- Y and Y1

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US20130190261

The invention provides a compound comprising the following structure, with the formula of C₅₇H₈₈O₂₃and the name of 3-O-β-D-galactopyranosyl(1→2)]-α-L-arabinofuranosyl(1→3)-β-D-glucuronopyranosyl-21,22-O-diangeloyl-3β,15α,16α, 21β,22α,28-hexahydroxyolean-12-ene, also known as Xanifolia-Y This compound was isolated from Xanthoceras sorbifolia.

This invention provides a compound comprising the following structure, with the formula of C₆₅H₁₀₀O₂₇and the name of 3-O-[β-D-galactopyranosyl(1→2)]-α-L-arabinofuranosyl(1→3)-β-D-glucuronopyranosyl-21-O-(3,4-diangeloyl)-α-L-rhamnophyranosyl-22-O-acetyl-3β,16α,2β,22α,28-pentahydroxyolean-12-ene, also known as Xanifolia-Y1

The above compounds (Y and Y1) have anti-cancer effect

FIG. 11 shows the spectrum of proton NMR of Compound Y.

FIG. 12 shows 2D NMR (HMQC) results of Compound Y. Also see Table 5.2 for the listed chemical shift data.

FIG. 13 shows 2D NMR (HMBC) results of Compound Y. Also see Table 5.3 for the listed chemical shift data.

FIG. 15 shows the Mass spectrum of compound Y with ESI-MS.

FIG. 16 shows the Proton NMR spectrum of Compound Y1.
FIG. 17 shows the 2D NMR (HMQC) results of Compound Y1. Also see the chemical shift data from Table 6.2.

FIG. 18 shows the 2D NMR (HMBC) results of Y1. Also see the chemical shift data from Table 6.3.
FIG. 19 shows COSY-NMR profile of Y1 with chemical shift data from Table 6.4.

see

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