7-Bromo-1-ethyl-β-carboline, an Alkaloid from the New Zealand Marine Bryozoan Pterocella vesiculosa

7-Bromo-1-ethyl-β-carboline, an Alkaloid from the New Zealand Marine Bryozoan Pterocella vesiculosa 5-Bromo-8-methoxy-1-methyl-β-carboline, an Alkaloid from the New Zealand Marine Bryozoan <i>Pterocella vesiculosa</i> 5-Bromo-8-methoxy-1-methyl-β-carboline, an Alkaloid from the New Zealand Marine Bryozoan <i>Pterocella vesiculosa</i> Further Pterocellins from the New Zealand Marine Bryozoan <i>Pterocella vesiculosa</i> Further Pterocellins from the New Zealand Marine Bryozoan <i>Pterocella vesiculosa</i> The Pterocellins, Novel Bioactive Alkaloids from the Marine Bryozoan <i>Pterocella </i><i>v</i><i>esiculosa</i> The Pterocellins, Novel Bioactive Alkaloids from the Marine Bryozoan <i>Pterocella </i><i>v</i><i>esiculosa</i> The pterocellins, bioactive alkaloids from the marine bryozoan Pterocella vesiculosa New Cytotoxic β-Carboline Alkaloids from the Marine Bryozoan, Cribricellina cribraria <b>Article title:</b> Novel brominated metabolites from Bryozoa: a functional analysis