title: Marine natural products: pyrrololactams from several sponges.
abstract: Two pyrrololactams, likely degradation products of more complex known guanidines, were isolated from several marine sponges. 5-Bromo- and 4,5-dibromopyrrole-1-carboxylic acid methyl esters were also isolated. A complex guanidine metabolite, poorly soluble in DMSO, was found to give sharp, reproducible nmr spectra in acid media.
authors.forename: F J
authors.initials: FJ
authors.lastname: Schmitz
authors.forename: S P
authors.initials: SP
authors.lastname: Gunasekera
authors.forename: V
authors.initials: V
authors.lastname: Lakshmi
authors.forename: L M
authors.initials: LM
authors.lastname: Tillekeratne
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D003063:Cnidaria / Q000378:metabolism*; D007769:Lactams / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D011758:Pyrroles / Q000302:isolation & purification*
chemical_list: D007769:Lactams; D011758:Pyrroles