Paclitaxel synthetic studies. A Diels–Alder approach to the A-ringExperimental details for 4, 13, 16, 17, 19–21 are available as supplementary data. For direct electronic access see http://www.rsc.org/suppdata/cc/b0/b005533f/
Abstract
Highly substituted cyclohexenes corresponding to the A-ring of the anti-cancer diterpene natural product paclitaxel are synthesised using a Diels–Alder reaction and decarboxylative elimination as the key steps.