The totalsynthesis of neoaltenuene, a toxin produced by alternaria fungi, has been achieved for the first time in 14 steps in a yield of 10 % starting from quinic acid and phloroglucinic acid, the longest linear sequence consisting of 10 steps. The key reaction was a palladium-catalyzed Suzuki-type coupling of an arene boronate with an iodinated cyclohexene.4a-epi-Neoaltenuene, a non-natural isomer