Term: | nigrasin A |
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Accession: | CHEBI:68012
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Definition: | An extended flavonoid that is 3,4,6a,11b-tetrahydro-2H,6H-[1]benzofuro[3,2-b]pyrano[3,2-g]chromene substituted by hydroxy groups at positions 3, 5, 6a and 9, geminal methyl groups at positions 2, an oxo group at position 6 and a prenyl group at position 11b. It has been isolated from the twigs of Morus nigra. |
Synonyms: | exact_synonym: | (3R*,6aS,11bR)-3,5,6a,9-tetrahydroxy-2,2-dimethyl-11b-(3-methylbut-2-en-1-yl)-3,4,6a,11b-tetrahydro-2H,6H-[1]benzofuro[3,2-b]pyrano[3,2-g]chromen-6-one |
| related_synonym: | Formula=C25H26O8; InChI=1S/C25H26O8/c1-12(2)7-8-24-15-6-5-13(26)9-17(15)33-25(24,30)22(29)20-18(32-24)11-16-14(21(20)28)10-19(27)23(3,4)31-16/h5-7,9,11,19,26-28,30H,8,10H2,1-4H3/t19-,24-,25-/m1/s1; InChIKey=ZLKLBRDQEVVKPJ-UKDVSSAZSA-N; SMILES=CC(C)=CC[C@]12Oc3cc4OC(C)(C)[C@H](O)Cc4c(O)c3C(=O)[C@@]1(O)Oc1cc(O)ccc21 |
| xref: | PMID:21401118; Reaxys:21444292 |
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