小叶爬崖香中苷类化合物的研究OA北大核心CSTPCD

In order to investigate the chemical constituents of glycosides in Piper sintenense Hatusima,column chromatographic techniques such as silica gel,ODS,MCI GEL CHP20P,Sephadex LH-20,and semi-preparative high performance liquid chromatography were used to afford nine glycosides from the n-butanol part of the 95%ethanol extract of Piper sintenense Hatusima.Based on the physicochemical properties and NMR data,the above compounds were identified as(2S)-2-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone-2-O-β-D-glucopyranoside(1),2-phenylethyl β-D-glucopyranoside(2),benzyl α-L-arabinopyranosyl-(1''→6')-β-D-glucopyranoside(3),benzyl β-D-xylopyanosyl-(1''→6')-β-D-glucopyranoside(4),phenethyl β-D-apiofuranosyl-(1''→ 2')-β-D-glucopyranoside(5),salidroside(6),phenethanol β-D-xylopyanosyl-(1''→6')-β-D-glucopyranoside(7),(Z)-hexenyl-O-α-L-arabinopyranosyl-(1''→6')-O-β-D-glucopyranoside(8),(Z)-hexenyl-O-β-D-xylopyanosyl-(1''→6')-O-β-D-glucopyranoside(9).Compound 1 was identified as a new compound,and compounds 3-9 were isolated from the genus Piperfor the first time.