title: Structure revision of spiroleucettadine, a sponge alkaloid with a bicyclic core meager in H-atoms.
mesh_terms: D000818:Animals; D006859:Hydrogen / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D011161:Porifera / Q000737:chemistry*; D011789:Quantum Theory; D013141:Spiro Compounds / Q000737:chemistry*
chemical_list: D007093:Imidazoles; D013141:Spiro Compounds; C534159:spiroleucettadine; D006859:Hydrogen