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Journal of Pharmacology And Experimental Therapeutics, Vol. 79, Issue 4, 364-372, 1943
Copyright © 1943 by American Society for Pharmacology and Experimental Therapeutics

STUDIES ON PHYSOSTIGMINE AND RELATED SUBSTANCES IV. CHEMICAL STUDIES ON PHYSOSTIGMINE BREAKDOWN PRODUCTS AND RELATED EPINEPHRINE DERIVATIVES

SYDNEY ELLIS 1

1 From the Department of Pharmacology, Harvard Medical School, Boston

1. Methods are described for the preparation of eseroline, rubreserine, eserine blue, eserine brown, and adrenochrome.

2. Rubreserine is shown to contain a substituted 2,3-dihydroindole-5,6-quinone group and thus to be structurally related to adrenochrome, the oxidation product of epinephrine.

3. The absorption spectra in the range 2200-6000Å of rubreserine, 2-iodoadrenochrome, and adrenochrome are reported. The spectra are similar in that each has a maximum at about 3000Å and another absorption peak in the range of 4900-5400Å.

Submitted on August 17, 1943






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Copyright © 1943 by the American Society for Pharmacology and Experimental Therapeutics.