New Geodiamolides from the Sponge Cymbastela sp. Collected in Papua New Guinea

Geodiamolides J−P (<BO>11</BO>−<BO>17</BO>) and R (<BO>19</BO>), eight new cyclic depsipetides, have been isolated from the marine sponge Cymbastela sp. collected in Papua New Guinea. The serine residue in geodiamolides L−P (<BO>13</BO>−<BO>17</BO>) and R (<BO>19</BO>) has not been previously found in this family of compounds.