Two new dihydroagarofuran sesquiterpenes with a novel substitution pattern: 1α-(α-methyl)-butanoyl-2α, 15-diacetoxy-4β-hydroxy-9β-(β-)furancarboxy-β-dihydroagarofuran (1) and 1α, 2α-di-(α-methyl)-butanoyl-4β-hydroxy-9β-(β-)furancarboxy-15-acetoxy-β-dihydro-agaro-furan (2) were isolated from Euonymus nanoides. Their structures were elucidated by means of 1H and 13C NMR spectroscopic studies, including 2D NMR technique.