Study on processing principle of Aconitum pendulum Study on chemical constituents from Delphinium honanense var. piliteram Guan Fu baseK,new diterpene alkaloid from Aconitum coreanum Diterpene alkaloids from roots and processed products of Aconitum pendulum Phytochemical Evidence Related to the Phylogeny of Aconitum gymnandrum Maxim. Phytochemical Evidence Related to the Phylogeny of Aconitum gymnandrum Maxim. Diterpene alkaloids from roots of Aconitum ouvrardianum