Spironaamidine, a new spiroquinone-containing alkaloid from the marine sponge Leucetta microraphis

Spironaamidine, a new spiroquinone-containing alkaloid from the marine sponge Leucetta microraphis Spironaamidine, a new spiroquinone-containing alkaloid from the marine sponge Leucetta microraphis Two imidazole alkaloids from a sponge (2<b><i>E</i></b>,9<b><i>E</i></b>)-Pyronaamidine 9-(<b><i>N</i></b>-Methylimine), a New Imidazole Alkaloid from the Northern Mariana Islands Sponge <b><i>Leucetta</i></b> sp. cf. <b><i>chagosensis</i></b> New Imidazole Alkaloids from the Sponge <i>Leucetta chagosensis</i> New Imidazole Alkaloids and Zinc Complexes from the Micronesian Sponge <i>Leucetta </i>cf. <i>c</i><i>hagosensis</i> New Imidazole Alkaloids and Zinc Complexes from the Micronesian Sponge Leucetta cf. chagosensis New Imidazole Alkaloids from the Sponge Leucetta chagosensis New Imidazole Alkaloids From the Sponge Leucetta sp. and the Associated Predatory Nudibranch Notodoris gardineri ChemInform Abstract: 2‐Amino‐imidazole Alkaloids from the Marine Sponge Leucetta chagosensis.