title: New 4-methoxybenzoyl derivatives from the ascidian Polycarpa aurata.
abstract: From the hydrophilic extract of the ascidian Polycarpa aurata three new compounds, N-(4-methoxybenzoyl)-N'-methylguanidine (1), butyl 2-(4-methoxyphenyl)-2-oxoacetate (2), and 2-(4-methoxyphenyl)-N-methyl-2-oxoacetamide (3), together with the known compounds methyl 2-(4-methoxyphenyl)-2-oxoacetate (4) and 4-methoxybenzoic acid were isolated. The structures of all isolates were determined from their spectroscopic data (NMR, MS, IR, UV).
authors.affiliation: Institute for Pharmaceutical Biology, Technical University of Braunschweig, Mendelssohnstrasse 1, D-38106 Braunschweig, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Wessels
authors.forename: G M
authors.initials: GM
authors.lastname: König
authors.forename: A D
authors.initials: AD
authors.lastname: Wright
mesh_terms: D000081:Acetamides; D000818:Animals; D001315:Australia; D001549:Benzamides; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D008401:Gas Chromatography-Mass Spectrometry; D062425:Hydroxybenzoate Ethers; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification*; D013058:Mass Spectrometry; D008760:Methylguanidine / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010647:Phenyl Ethers; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D014561:Urochordata / Q000737:chemistry*
chemical_list: C446689:2-(4-methoxyphenyl)-N-methyl-2-oxoacetamide; D000081:Acetamides; D001549:Benzamides; D062425:Hydroxybenzoate Ethers; D062385:Hydroxybenzoates; C446687:N-(4-methoxybenzoyl)-N'-methylguanidine; D010647:Phenyl Ethers; C446688:butyl-2-(4-methoxyphenyl)-2-oxoacetate; C004520:4-anisic acid; D008760:Methylguanidine