Two new rosane-type diterpenoids from Euphorbia ebracteolata Hayata

Two new diterpeniods, euphebracteolatins A and B (1 and 2, resp.) were isolated from Euphorbia ebracteolataHayata, along with two known ones (3R)-ent-rosa-1(10),15-dien-3-ol (3) and yuexiandajisu D (4). The structures were established by extensive spectroscopic analyses and comparison with literature data.