B. Rozynov, A. Mironov, R. P. Evstigneeva
Mar 1, 1971
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Journal
Chemistry of Natural Compounds
Abstract
SummaryFeatures of the mass-spectrometric behavior of the tetramethyl ester of β-meso-(3-acetyl-2,4-dimethyl-5-pyrryl)coproporphyrin II and the dimethyl ester of α-meso-(3-acetyl-2,4-dimethyl-5-pyrryl) mesoporphyrin III, each of which contains a voluminous pyrryl radical with a conjugated ring system in the meso position, have been investigated.