Xestoproxamines A−C from Neopetrosia proxima. Assignment of Absolute Stereostructure of Bis-piperidine Alkaloids by Integrated Degradation-CD Analysis

Xestoproxamines A−C from <i>Neopetrosia proxima</i>. Assignment of Absolute Stereostructure of Bis<i>-</i>piperidine Alkaloids by Integrated Degradation-CD Analysis Structure and absolute configuration of 3-alkylpiperidine alkaloids from an Indonesian sponge of the genus Halichondria Neopetrosiamine A, biologically active bis-piperidine alkaloid from the Caribbean sea sponge Neopetrosia proxima Neopetrosiamine A, biologically active bis-piperidine alkaloid from the Caribbean sea sponge Neopetrosia proxima A New Quinolizidine Alkaloid from the Papua New Guinean Sponge Xestospongia exigua A New Quinolizidine Alkaloid from the Papua New Guinean Sponge <i>Xestospongia exigua</i> Ingenamine alkaloids isolated from the sponge Xestospongia ingens: Structures and absolute configurations Structures and Absolute Configurations of Diketopiperazine Alkaloids Chrysopiperazines A–C from the Gorgonian-Derived Penicillium chrysogenum Fungus Novel Marine Sponge Amino Acids, 10. Xestoaminoh from Xestaspongia sp. Novel Marine Sponge Amino Acids, 10. Xestoaminoh from Xestaspongia sp.