title: Isolation of Four New Calyculins from the Marine Sponge Discodermia calyx(1).
authors.affiliation: Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113, Japan.
authors.forename: Shigeki
authors.initials: S
authors.lastname: Matsunaga
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Wakimoto
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Fusetani