845276-46-2Relevant academic research and scientific papers
Enantioselective total synthesis of pyrinodemin A
Pouilhes, Annie,Amado, Anel Flores,Vidal, Anne,Langlois, Yves,Kouklovsky, Cyrille
experimental part, p. 1502 - 1510 (2008/10/09)
Pyrinodemin A 1, a cytotoxic marine alkaloid, was synthesized in a convergent and enantioselective fashion. The key steps are an asymmetric intramolecular dipolar cycloaddition of an oxazoline N-oxide to introduce the bicyclic ring system of the molecule, a cuprate coupling for the extension of the saturated chain and a B-alkyl Suzuki coupling for the introduction of a 3-pyridyl moiety. Reductive amination allowed the coupling of the second side-chain onto the nitrogen atom to give 1. Additionally, attempts to prepare 1 from a trienic precursor by a double B-alkyl Suzuki reaction are described. The Royal Society of Chemistry.
Stereoselective synthesis of a bicyclic isoxazolidine related to the pyrinodemin family of alkaloids via an intramolecular asymmetric [2+3] cycloaddition
Amado, Anel Florès,Kouklovsky, Cyrille,Langlois, Yves
, p. 103 - 106 (2007/10/03)
Bicyclic isoxazolidine 21, a synthetic intermediate for pyrinodemins, was synthesized in six steps using an asymmetric intramolecular [2+3] cycloaddition of a new phenylglycinol-derived oxazoline N-oxide.
