A stereorational total synthesis of (−)-ptilocaulin
作者:Alan E. Walts、William R. Roush
DOI:10.1016/s0040-4020(01)96701-8
日期:1985.1
A stereorational totalsynthesis of the structurally (−)-enantiomer of the unique guanidine containing natural product ptilocaulin is described. This efficient synthesis (14 steps, 7.4% overall yield) utilizes an intramolecular 1,3-dipolar cycloaddition as a key step and establishes that the natural product is the most stable of a number of possible isomers. This work also establishes the absolute