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. 1985 Jan-Feb;48(1):47-53.
doi: 10.1021/np50037a008.

Marine natural products: pyrrololactams from several sponges

F J Schmitz, S P Gunasekera, V Lakshmi, L M Tillekeratne

Marine natural products: pyrrololactams from several sponges

F J Schmitz et al. J Nat Prod. 1985 Jan-Feb.

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.

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