New Cembranolide Diterpenes with a Dimethylamino Group from the Okinawan Soft Coral (Sinularia sp.)

New Cembranolide Diterpenes with a Dimethylamino Group from the Okinawan Soft Coral (<i>Sinularia</i> sp.) Cytotoxic Cembranoid Diterpenes from a Soft Coral<i>Sinularia</i><i>g</i><i>ibberosa</i> A New Cembranolide from the Soft Coral <i>Sinularia capillosa</i> Novel Cytotoxic Cembranoids from the Soft Coral <i>Sinularia </i><i>f</i><i>lexibilis</i> Cytotoxic Acylated Spermidine from a Soft Coral, <i>Sinularia</i> sp. New Marine Cembrane-type Diterpenoids from the Okinawan Soft Coral <i>Clavularia </i><i>k</i><i>oellikeri</i> Sinulaflexiolides A−K, Cembrane-Type Diterpenoids from the Chinese Soft Coral <i>Sinularia flexibilis</i> A C-3 Methylated Isocembranoid and 10-Oxocembranoids from a Formosan Soft Coral, <i>Sinularia grandilobata</i> A New Norcembranoid Dimer from the Red Sea Soft Coral <i>Sinularia gardineri</i> Marine natural products: Cytotoxic spermidine derivatives from the soft coral sinularia brongersmai