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Communication | Regular issue | Vol 36, No. 10, 1993, pp.2191-2194
Published online, 1st January, 1970
DOI: 10.3987/COM-93-6403
Isolation of Novel Meso-substituted Uroporphyrins from Cultures of Pseudomonas

Wen Lin, Robert S. Burkhalter, and Russell Timkovich*

*Department of Chemistry, University of Alabama, Box 870336, University, Tuscaloosa, Alabama 35478-0336, U. S. A.

Abstract

Two novel and unusal porphyrins have been isolated from the pool of porphyrin metabolites in cultures of Pseudomonas. They correspond to substitution of a meso proton in uroporphyrin by a nitro group or a chlorine atom. The purified compounds have been characterized by 1H-nmr, mass spectrometry, and visible spectroscopy to establish their structure.