A New Sesquiterpenoid Quinone and Other Related Compounds from the Okinawan Marine Sponge Dactylospongia elegans

A New Sesquiterpenoid Quinone and Other Related Compounds from the Okinawan Marine Sponge <i>Dactylospongia</i> <i>e</i><i>legans</i> A New Sesquiterpenoid Quinone and Other Related Compounds from the Okinawan Marine Sponge <i>Dactylospongia</i> <i>e</i><i>legans</i> Dactyloquinones A and B, New Sesquiterpenoid Quinones from the Okinawan Marine Sponge <i>Dactylospongia</i> <i>e</i><i>legans</i> Dactyloquinones C, D and E novel sesquiterpenoid quinones, from the Okinawan marine sponge, Dactylospongia elegans The structures and stereochemistry of cytotoxic sesquiterpene quinones from dactylospongia elegans Sesquiterpene Benzoxazoles and Sesquiterpene Quinones from the Marine Sponge <i>Dactylospongia elegans</i> Sesquiterpene Benzoxazoles and Sesquiterpene Quinones from the Marine Sponge <i>Dactylospongia elegans</i> Nakijiquinones E and F, new dimeric sesquiterpenoid quinones from marine sponge Nakijiquinones G–I, new sesquiterpenoid quinones from marine sponge Nakijiquinones J−R, Sesquiterpenoid Quinones with an Amine Residue from Okinawan Marine Sponges