calceolarioside B - CAS 105471-98-5
Catalog number: 105471-98-5
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Anti-proliferation properties.
2-(3,4-Dihydroxyphenyl)ethyl 6-O-[(E)-3-(3,4-dihydroxyphenyl)propenoyl]-β-D-glucopyranoside; 3,4-Dihydroxyphenethyl 6-O-(3,4-dihydroxycinnamoyl)-β-D-glucopyranoside; Calceolarioside B; Calceorioside B; Desrhamnosyl isoacteoside; (E)-beta-D-Glucopyranoside, 2-(3,4-Dihydroxyphenyl)ethyl, 6-[(2E)-3-(3,4-dihydroxyphenyl)-2-propenoate]; beta-D-Glucopyranoside, 2-(3,4-dihydroxyphenyl)ethyl, 6-[(2E)-3-(3,4-dihydroxyphenyl)-2-propenoate]; DesrhaMnosyl i
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1.Three phenylethanoid glucosides of unusual structure from Chirita sinensis (Gesneriaceae).
Damtoft S;Jensen SR Phytochemistry. 1994 Sep;37(2):441-3.
From Chirita sinensis (Gesneriaceae) was isolated six phenylethanoid glucosides, namely the previously known positional isomers plantainoside A, calceolarioside A and calceolarioside B together with three new compounds named chiritoside A, B and C. It was proved by analysis of the NMR data that the chiritosides were the 4"-O-beta-glucopyranosyl-derivatives of the first three compounds.
2.[Pharmacognostical and chemical studies of Lysinotus wilsonii].
Bai Z;Wang X;Miao J;Xiao P;Liu Y Zhongguo Zhong Yao Za Zhi. 2010 May;35(10):1242-5.
OBJECTIVE: ;To provide evidences for the pharmacognostical and chemical identification and the further development of Lysinotus wilsonii.;METHOD: ;The paraffin section method was used for the microscopic identifications of stems and leaves. The slide with chloral hydrate was applied for the microscopic identifications of the powder of stems and leaves. The HPLC was used for the identification of the phenylpropanoids.;RESULT: ;An obvious periderm consisted of a line of inseparable cells, lots of stone cells existed in the periderm and cortex, narrow ring of xylem and broad pith could be easily observed in the stem transaction of L. wilsonii. Epidermis was composed of one lines of parenchyma, three lines of epithelial cells in the side of above epidermis, palisade tissue was composed of 2-3 lines of square and thin cells and amphicribral vascular bundle in transaction of midrib also could be observed in the leaf transaction of L. wilsonii. Long xylem fibers, lots of pitted vessels, stone cells and anomocytic type stomas existed in the powder of L. wilsonii. Acteosidel and caleolarioside B were detected in L wilsonii.;CONCLUSION: ;The pharmacognostic and chemical characteristics of L. wilsonii can be used for authentication of the plant.
3.Screening of new chemopreventive compounds from Digitalis purpurea.
Lee JY;Woo E;Kang KW Pharmazie. 2006 Apr;61(4):356-8.
Chemopreventive agents induce a battery of genes whose protein products can protect cells from chemical-induced carcinogenesis. In this study, we isolated four different glycosides (1 acteoside; 2 purpureaside A; 3 calceolarioside B; and 4, plantainoside D) from the leaves of Digitalis purpurea and studied their abilities to induce glutathione S-transferase (GST) and their protective efficiencies against aflatoxin B1-induced cytotoxicity in H4IIE cells. Of these four glycosides, acteoside significantly inhibited the cytotoxicity induced by aflatoxin B1 (AFB1) and also selectively increased GSTalpha protein levels. Reporter gene analysis using an antioxidant response element (ARE) containing construct and subcellular fractionation assays, revealed that GSTalpha induction by acteoside might be associated with Nrf2/ARE activation. The results suggest that acteoside possesses a potent hepatoprotective effect against AFB1 and that it can be applied as a potential chemopreventive agent.
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CAS 105471-98-5 calceolarioside B

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