Cabraleone - CAS 35761-54-7
Catalog number: 35761-54-7
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Cabraleone has low toxicity in vitro whitch is from the herbs of Aglaia lawii
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1.Silvestrol and episilvestrol, potential anticancer rocaglate derivatives from Aglaia silvestris.
Hwang BY;Su BN;Chai H;Mi Q;Kardono LB;Afriastini JJ;Riswan S;Santarsiero BD;Mesecar AD;Wild R;Fairchild CR;Vite GD;Rose WC;Farnsworth NR;Cordell GA;Pezzuto JM;Swanson SM;Kinghorn AD J Org Chem. 2004 May 14;69(10):3350-8.
Two cytotoxic rocaglate derivatives possessing an unusual dioxanyloxy unit, silvestrol (1) and episilvestrol (2), were isolated from the fruits and twigs of Aglaia silvestris by bioassay-guided fractionation monitored with a human oral epidermoid carcinoma (KB) cell line. Additionally, two new baccharane-type triterpenoids, 17,24-epoxy-25-hydroxybaccharan-3-one (3) and 17,24-epoxy-25-hydroxy-3-oxobaccharan-21-oic acid (4), as well as eleven known compounds, 1beta,6alpha-dihydroxy-4(15)-eudesmene (5), ferulic acid (6), grasshopper ketone (7), apigenin, cabraleone, chrysoeriol, 1beta,4beta-dihydroxy-6alpha,15alpha-epoxyeudesmane, 4-hydroxy-3-methoxyacetophenone, 4-hydroxyphenethyl alcohol, ocotillone, and beta-sitosterol 3-O-beta-D-glucopyranoside, were also isolated and characterized. The structures of compounds 1-4 were elucidated by spectroscopic studies and by chemical transformation. The absolute stereochemistry of silvestrol (1) was established by a X-ray diffraction study of its di-p-bromobenzoate derivative, and the structure of 3 was also confirmed by single-crystal X-ray diffraction. The isolates and chemical transformation products were evaluated for cytotoxicity against several human cancer cell lines, and silvestrol (1) and episilvestrol (2) exhibited potent in vitro cytotoxic activity.
2.Cytotoxic constituents of the twigs and leaves of Aglaia rubiginosa.
Rivero-Cruz JF;Chai HB;Kardono LB;Setyowati FM;Afriatini JJ;Riswan S;Farnsworth NR;Cordell GA;Pezzuto JM;Swanson SM;Kinghorn AD J Nat Prod. 2004 Mar;67(3):343-7.
Activity-guided fractionation of a CHCl(3)-soluble extract of the twigs of Aglaia rubiginosa, using human oral epidermoid carcinoma (KB) cells as a monitor, led to the isolation of a new naturally occurring cyclopenta[b]benzofuran, 1-O-acetylrocaglaol (1), along with seven known compounds, methyl rocaglate (2), rocagloic acid (3), 1-O-acetylmethyl rocaglate (4), desyclamide, eryodictiol, 5-hydroxy-3,7,4'-trimethoxyflavone, and naringenin. A CHCl(3) extract of the leaves of A. rubiginosa yielded the new compound (3S,4R,22R)-cholest-7,24-diene-3,4,22-triol (5), as well as 11 known compounds, including 2 and 4 and cabraleone, dammarelonic acid, (20S,23E)-20,25-dihydroxy-3,4-secodammara-4(28),23-dienoic acid, (20S,23E)-20,25-dihydroxy-3,4-secodammara-4(28),23-dienoic acid methyl ester, (3beta,4beta,22R)-ergosta-5,24(24')-diene-3,4,22-triol, ocotillone, shoreic acid, beta-sitosterol, and beta-sitosterol glycoside. The structures of 1 and 5 were elucidated by spectral and chemical methods. Isolates were evaluated with a human cancer cell panel, and compounds 1-4 were found to exhibit potent cytotoxic activity.
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CAS 35761-54-7 Cabraleone

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