title: New unusual alkaloids from the ascidian Eudistoma vannamei.
abstract: The MeOH extract of the ascidian Eudistoma vannamei was found to contain three novel compounds, the adenine alkaloid derivatives 9-[N-(leucyl)-isoleucyl]- adenine (1) and 8-hydroxy-8-isopentyl-7,8-dihydroadenine (2), and the phenylalanine peptide derivative N-[N-(leucyl)-isoleucyl]phenethylamine (3). Other previously related compounds isolated from this extract include thymidine, 2'-deoxyuridine and phenylalanine. The structures of the new compounds were elucidated through the use of NMR and mass spectrometry.
authors: Antônia Torres Avila
authors: AT
authors: Pimenta
authors: Paula Christine
authors: PC
authors: Jimenez
authors: Leticia Veras
authors: LV
authors: Costa-Lotufo
authors: Raimundo
authors: R
authors: Braz-Filhoc
authors: Mary Anne Sousa
authors: MA
authors: Lima
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D000818:Animals; D014561:Urochordata / Q000737:chemistry*
chemical_list: D000470:Alkaloids