Gukulenins A and B, Cytotoxic Tetraterpenoids from the Marine Sponge <i>Phorbas gukulensis</i> Su Young Park Hyukjae Choi Hoosang Hwang Heonjoong Kang Jung-Rae Rho 10.1021/np900606h.s001 https://acs.figshare.com/articles/journal_contribution/Gukulenins_A_and_B_Cytotoxic_Tetraterpenoids_from_the_Marine_Sponge_i_Phorbas_gukulensis_i_/2774848 Gukulenins A (<b>1</b>) and B (<b>2</b>), both having an unprecedented skeleton with a bis-tropolone moiety, were isolated from the Korean marine sponge <i>Phorbas gukulensis</i>. They exhibited significant cytotoxicity against human pharynx, stomach, colon, and renal cancer cell lines in the range 0.05−0.80 μM. 2010-04-23 00:00:00 cancer cell lines skeleton moiety Cytotoxic Tetraterpenoids Marine Sponge Phorbas gukulensisGukulenins pharynx cytotoxicity Korean marine sponge Phorbas gukulensis