Two New Indole Alkaloids from the Marine-Derived Bacterium Aeromonas sp CB101

Two new indole alkaloids, arsindolines A and B (1 and 2, resp.), together with six known indole alkaloids, were isolated from a marine-derived bacterium strain CB101, identified as Aeromonas sp. Their structures were established by spectroscopic methods, and their antitumor activities were evaluated by SRB and MTT methods.