New highly oxidized diterpene quinones from Salvia fruticulosa (labiatae)

✍ Scribed by Lydia Rodríguez-Hahn; Baldomero Esquivel; Cristina Sánchez; Jorge Cárdenas; Luis Estebanes; Manuel Soriano-García; Rubén Toscano; T.P. Ramamoorthy

• Publisher: Elsevier Science
• Year: 1986
• Tongue: French
• Weight: 205 KB
• Volume: 27
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)85237-5

✦ Synopsis

The structures of fruticulins A and B, two highly oxidized diterpene quinones isolated from ScLeuin @~'2c~ona, were determined by spectroscopic methods, chemical transformations and X-ray crystallographic analysis of one of them. The free phenol derivative of fruticulin A was also isolated as a natural product. Some years ago, the isolation and structural determination of icetexone, a rearranged