title: Longithorols A and B, novel prenylated paracyclophane- and metacyclophane-type hydroquinones from the tunicate Aplidium longithorax.
abstract: The tunicate Aplidium longithorax collected from Palau contained two novel prenylated paracyclophane- and metacyclophane-type hydroquinones, longithorols A (1) and B (2), in addition to longithorones A-I. Longithorols A and B were very unstable and were therefore isolated as their more stable pentaacetate forms, 3 and 4, respectively. The structures of 3 and 4 were determined by spectral data, especially 2D NMR data.
authors.affiliation: Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA.
authors.forename: X
authors.initials: X
authors.lastname: Fu
authors.forename: M L
authors.initials: ML
authors.lastname: Ferreira
authors.forename: F J
authors.initials: FJ
authors.lastname: Schmitz
mesh_terms: D000818:Animals; D006873:Hydroquinones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D013057:Spectrum Analysis; D014561:Urochordata / Q000737:chemistry*
chemical_list: D006873:Hydroquinones