Synthesis of the hydroazulene portion of guanacastepene A from the cyclopentannelation reaction.
Commercially available tribromoethylene has been converted to ketoepoxide 15, an advanced intermediate in the total synthesis of guanacastepene A. [reaction: see text]
D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000737:chemistry*; D001966:Bromine / Q000737:chemistry; D002384:Catalysis; D004224:Diterpenes / Q000138:chemical synthesis* / Q000737:chemistry*; D015394:Molecular Structure; D014197:Trees / Q000737:chemistry
D000900:Anti-Bacterial Agents; D004224:Diterpenes; C454620:guanacastepene A; D001966:Bromine