Tobagolide

Tobagolide 72, another novel cembrane diterpenoid containing a dimethylamino moiety, was isolated by Tinto and Chan and coworkers [49,50]. As shown in scheme 5, an unusual reaction of 72 under acetylation conditions led to the replacement of the dimethylamino moiety... 

Paquette, L.A. (1992) Investigations into furanocembranolide diterpene construction. Total synthesis of dihydropseudopterolide, gorgiacerone, and acerosolide reversible interconversion of pseudopterolide and tobagolide. Chemtracts Org. Chem., 5,141-157. 

---