Abstract
Two substances, braylin, C15H14O4, and brayleyanin, C20H24O4, have been isolated from the bark of F. brayleyana F. Muell. By degradation and synthesis they have been proved to be 6-methoxy -7, 8-(2',2'-dimethylpyrano-5?,6?)coumarin and 6-methoxy-7-(γγ-dimethylallyloxy)-8-(γγ-dimethylallyl)coumarin respectively.
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Claims 2
Claim · model-written summary
Braylin and brayleyanin were isolated from the bark of Flindersia brayleyana.
- Taxon
- F. brayleyana F. Muell
Flindersia brayleyanae0 - Organ / stage
- barke0
- Outcome
- braylin, C15H14O4, and brayleyanin, C20H24O4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two substances, braylin, C15H14O4, and brayleyanin, C20H24O4, have been isolated from the bark of F. brayleyana F. Muell”
Claim · model-written summary
By degradation and synthesis the two isolated substances were shown to be substituted coumarins (a pyranocoumarin for braylin and a dimethylallyl-substituted coumarin for brayleyanin).
- Taxon
- F. brayleyana F. MuellFlindersia brayleyanae0
- Organ / stage
- barke0
- Outcome
- proved to be 6-methoxye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“isolated from the bark of F. brayleyana F. Muell”
e1“they have been proved to be 6-methoxy”