Two Novel Diterpenoids, Erinacines H and I from the Mycelia of Hericium erinaceum

Abstract
Novel diterpenoids, erinacines H (1) and I (3), were isolated from the cultured mycelia of Hericium erinaceum. The structures of the compounds were determined by interpretation of the spectral data. Erinacine H showed stimulating activity of nerve growth factor (NGF)-synthesis.