Tetrahedron p. 5039 - 5046 (1993)
Update date:2022-07-30
Topics:
Pinto
De Epifanio
Camargo
The natural isopimarenes 2-5, isolated from Velloziaceae species, with known absolute stereochemistry, were submitted to chemical transformations and afforded the tetracyclic lactones 10 and 11 with the gibberellane skeleton of the normal series. The 15-oxa-gibberellanes obtained are enantiomeric analogs of the natural gibberellins and this represents the first synthesis of this type of compounds.
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