异落新妇苷

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中文名	异落新妇苷
英文名	(2R,3S)-2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-3,4-dihydro-2 H-chromen-3-yl 6-deoxy-α-L-mannopyranoside
英文别名	更多

描述	Isoastilbin，Rhizoma Smilacis glabrae 和 Astragalus membranaceus 中的一种二氢黄酮醇糖苷化合物。Isoastilbin 抑制葡萄糖基转移酶 (GTase) 的 IC50 值为 54.3 μg/mL，还抑制酪氨酸酶 (tyrosinase) 活性。Isoastilbin 具有神经保护，抗氧化，抗微生物和抗凋亡的特性，并可用于阿尔茨海默氏病的研究。
相关类别	研究领域 >> 感染信号通路 >> 代谢酶/蛋白酶 >> 酪氨酸酶研究领域 >> 神经疾病信号通路 >> 抗感染 >> 细菌
靶点	IC50: 54.3 μg/mL (Glucosyltransferase (GTase)[2]
SMILES	O[C@H]([C@@H]([C@@H](O)[C@H](C)O1)O)[C@]1([H])O[C@H]2[C@@H](C3=CC(O)=C(O)C=C3)OC4=CC(O)=CC(O)=C4C2=O
参考文献	[1]. Hong Yu, et al. Protective Roles of Isoastilbin Against Alz heimer’s Disease via Nrf2-mediated Antioxidation and anti?apoptosis. Int J Mol Med. 2019 Mar;43(3):1406-1416. [2]. Harlinda Kuspradini, et al. Antimicrobial activity against Streptococcus sobrinus and glucosyltransferase inhibitory activity of taxifolin and some flavanonol rhamnosides from kempas (Koompassia malaccensis) extracts. J. Wood Sci., 2009, 55(4):308-13. [3]. Batubara, Irmanida, et al. Anti-acne and Tyrosinase Inhibition Properties of Taxifolin and Some Flavanonol Rhamnosides from Kempas. Wood Research Journal ,2010, 1(1):45-9.

密度	1.7±0.1 g/cm3
沸点	801.1±65.0 °C at 760 mmHg
分子式	C₂₁H₂₂O₁₁
分子量	450.393
闪点	282.9±27.8 °C
精确质量	450.116211
PSA	186.37000
LogP	2.97
蒸汽压	0.0±3.0 mmHg at 25°C
折射率	1.748

4H-1-Benzopyran-4-one, 3-[(6-deoxy-α-L-mannopyranosyl)oxy]-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R,3R)-

Astilbin Dihydroquercetin 3-rhamnoside Taxifolin 3-rhamnoside

4H-1-Benzopyran-4-one, 3-((6-deoxy-α-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R,3R)-

Taxifolin 3-rhamnoside

Neoisoastilbin

Astilbin

(2R-trans)-3-((6-Deoxy-α-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-4H-1-benzopyran-4-one

4H-1-Benzopyran-4-one, 3-((6-deoxy-α-L-mannopyranosyl)oxy)-2-(3,4-dihydroxyphenyl)-2,3-dihydro-5,7-dihydroxy-, (2R-trans)-

Taxifolin 3-O-rhamnoside

Astilbin from Engelhardtia roxburghiana

(2R,3R)-2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy-2,3-dihydrochromen-4-one

(2R,3R)-2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-4-oxo-3,4-dihydro-2H-chromen-3-yl 6-deoxy-α-L-mannopyranoside

Isoastilbin

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异落新妇苷

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