title: Synthesis of the C(18) -norditerpenoid alkaloid neofinaconitine: a lesson in convergent synthesis planning.
abstract: Hexacyclic framework: The total synthesis of the complex C18 -norditerpenoid alkaloid neofinaconitine has been achieved by a convergent approach. This remarkable synthesis featured two Diels-Alder cycloadditions and subsequent Mannich-type N-acyliminium and radical cyclizations to establish the unique hexacyclic core structure of the target molecule.
authors: Department of Chemistry, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742 (South Korea).
authors: Xiao-Yu
authors: XY
authors: Liu
authors: David Y-K
authors: DY
authors: Chen
keywords: alkaloids; cycloaddition; natural products; terpenoids; total synthesis