Psammocindoles A-C: Isolation, Synthesis, and Bioactivity of Indole-γ-lactams from the Sponge Psammocinia vermis. - Kwon OS; Ahn S; Jeon JE; Park IG; Won TH; Sim CJ; Park HG; Oh DC; Oh KB; Noh M; Shin J (Organic letters, 2021)