1-(4-hydroxy-3-methoxyphenyl)-2-(4-formyl-2-methoxyphenoxy)-propane-1,3-diol. A 8-O-4' neolignan, has been stereoselectively synthesized in eight steps from ferulic acid, and the directly cis opening of epoxide in...1-(4-hydroxy-3-methoxyphenyl)-2-(4-formyl-2-methoxyphenoxy)-propane-1,3-diol. A 8-O-4' neolignan, has been stereoselectively synthesized in eight steps from ferulic acid, and the directly cis opening of epoxide in eposidation and Mitsunobu reaction were used ingeniously as two key steps with high stereoselectively.展开更多
Patrinia scabiosaefolia,is used as wild vegetable in China for more than 2000 years,with a variety of pharmacological activities,including anti-inflammatory,anti-tumor and hypoglycemic.Based on our ongoing research on...Patrinia scabiosaefolia,is used as wild vegetable in China for more than 2000 years,with a variety of pharmacological activities,including anti-inflammatory,anti-tumor and hypoglycemic.Based on our ongoing research on chemical constituents and hypoglycemic activity of P.scabiosaefolia,4 lignan compounds,(+)-isolariciresinol(1),7R,7’R,8S,8’S-(+)-neo-olivil-4-O-β-D-glucopyranoside(2),4-O-methylcedrusin(3)and patrinian A(4),were isolated and identifi ed.The hypoglycemic activity showed that compounds 2 and 3 could extremely signifi cantly improve insulin resistance at 100(P<0.001),50(P<0.001)and 25μmol/L(P<0.01)in IR 3T3-L1 cells.While compound 4 only promoted glucose uptake by IR 3T3-L1 cells at 100μmol/L(P<0.01).Western blotting experiments showed that compounds 2 and 4 up-regulated the protein expressions of p-IRS,PI-3K,p-AKT and glucose transporter 4(GLUT4),and promoted the transcription of GLUT4 mRNA.Therefore,the mechanisms of compounds 2 and 4 were presumed to improve IR by activating PI-3K/AKT signaling pathway.展开更多
A new neolignan glycoside, 4-O-β-d-glucopyranosyl-9-O-β-d-glucopyranosyl-(7R,8S)-dehydrodiconiferyl alcohol was isolated from the fresh roots of Angelica dahurica. The structure of the new compound was elucidated on...A new neolignan glycoside, 4-O-β-d-glucopyranosyl-9-O-β-d-glucopyranosyl-(7R,8S)-dehydrodiconiferyl alcohol was isolated from the fresh roots of Angelica dahurica. The structure of the new compound was elucidated on the basis of spectral analysis.展开更多
Two new 8-O-4＇ neolignan glycosides, named matteustruthiosides A（1） and B（2） were isolated from the aerial parts of Matteuccia struthiopteris. Their chemical structures were characterized on the basis of various ...Two new 8-O-4＇ neolignan glycosides, named matteustruthiosides A（1） and B（2） were isolated from the aerial parts of Matteuccia struthiopteris. Their chemical structures were characterized on the basis of various spectroscopic techniques. The absolute configurations of them were determined by experimental circular dichroism（CD） spectra. Compounds 1 and 2 were inactive against influenza A（H1N1） virus in vitro.展开更多
(7R,8S)-脱氢双松柏醇-4,9-双-O-β-D-吡喃葡萄糖苷是从中药北沙参(Glehnia litto-ralisFr.Schmidt ex Miquel)醇提取物中分离得到的一种苯并二氢呋喃新木脂素苷类化合物.通过化学方法和波谱分析鉴定了该化合物的结构.采用2D NMR技术对...(7R,8S)-脱氢双松柏醇-4,9-双-O-β-D-吡喃葡萄糖苷是从中药北沙参(Glehnia litto-ralisFr.Schmidt ex Miquel)醇提取物中分离得到的一种苯并二氢呋喃新木脂素苷类化合物.通过化学方法和波谱分析鉴定了该化合物的结构.采用2D NMR技术对其1H和13C NMR信号进行了全归属.展开更多
基金the National Natural Science Foundation of China (No.29972015).
文摘1-(4-hydroxy-3-methoxyphenyl)-2-(4-formyl-2-methoxyphenoxy)-propane-1,3-diol. A 8-O-4' neolignan, has been stereoselectively synthesized in eight steps from ferulic acid, and the directly cis opening of epoxide in eposidation and Mitsunobu reaction were used ingeniously as two key steps with high stereoselectively.
基金funded by National Key R&D Program of China(2022YFF1100300)National Natural Science Foundation of China(31900292)+1 种基金Science and Technology Development Program of Henan Province(212102110469,222102520035)Research on Precision Nutrition and Health Food,Department of Science and Technology of Henan Province(CXJD2021006).
文摘Patrinia scabiosaefolia,is used as wild vegetable in China for more than 2000 years,with a variety of pharmacological activities,including anti-inflammatory,anti-tumor and hypoglycemic.Based on our ongoing research on chemical constituents and hypoglycemic activity of P.scabiosaefolia,4 lignan compounds,(+)-isolariciresinol(1),7R,7’R,8S,8’S-(+)-neo-olivil-4-O-β-D-glucopyranoside(2),4-O-methylcedrusin(3)and patrinian A(4),were isolated and identifi ed.The hypoglycemic activity showed that compounds 2 and 3 could extremely signifi cantly improve insulin resistance at 100(P<0.001),50(P<0.001)and 25μmol/L(P<0.01)in IR 3T3-L1 cells.While compound 4 only promoted glucose uptake by IR 3T3-L1 cells at 100μmol/L(P<0.01).Western blotting experiments showed that compounds 2 and 4 up-regulated the protein expressions of p-IRS,PI-3K,p-AKT and glucose transporter 4(GLUT4),and promoted the transcription of GLUT4 mRNA.Therefore,the mechanisms of compounds 2 and 4 were presumed to improve IR by activating PI-3K/AKT signaling pathway.
文摘A new neolignan glycoside, 4-O-β-d-glucopyranosyl-9-O-β-d-glucopyranosyl-(7R,8S)-dehydrodiconiferyl alcohol was isolated from the fresh roots of Angelica dahurica. The structure of the new compound was elucidated on the basis of spectral analysis.
基金financially supported by State Key Laboratory of Bioactive Substance and Function of Natural Medicines (No. GTZK201304)the Key Projects of the National Science and Technology Pillar Program (No. 2012BAI30B02)
文摘Two new 8-O-4＇ neolignan glycosides, named matteustruthiosides A（1） and B（2） were isolated from the aerial parts of Matteuccia struthiopteris. Their chemical structures were characterized on the basis of various spectroscopic techniques. The absolute configurations of them were determined by experimental circular dichroism（CD） spectra. Compounds 1 and 2 were inactive against influenza A（H1N1） virus in vitro.
