Two novel epimeric eremophilane sesquiterpenes, 7β-H-3α-angeloyl-9(10)-ene-11,12-epoxy-8-oxoeremophilane (1) and 7β-H-3α-angeloyl-9(10)-ene-11, 12-epoxy-8-o
Two new norditerpenoid alkaloids were isolated from the roots of Aconitum nagarum.Their structures were elucidated as 13-hydroxyfranchetine 1 and 10-dehydroxyfl