Antiradiation compounds. XXII. Methyl 3-amino-2-phenyldithiopropenoates and 1,1-bis(methylthio)-3-amino-2-phenyl-1-propenes.
The title compounds were prepared in the attempt to provide methylthio and bis(methylthio) analogues of the radioprotective pyridinium- and quinolinium-2-dithioacetic acid derivatives in which the methylthio function is attached to an amino group through an aliphatic chain. The methyl 3-amino-2-phenyldithiopropenoates were obtained by the reaction of amines with 4-phenyl-3-methylthio-1,2-dithiolium iodide, and the 1,1-bis(methylthio)-3-amino-2-phenyl-1-propenes were obtained by methylation and reduction of the dithiopropenoates. The methyl dithiopropenoates with aliphatic substituents on the nitrogen gave only fair or poor radiation protection in mice, and one example of the reduced bis(methylthio) derivatives tested was inactive. The precursor 1,2-dithiole-3-thione and its methiodide, predicted to be radiation protective, were found inactive in this test.
Samuel M. Best Research Laboratory, Massachusetts College of Pharmacy and Allied Health Sciences, Boston 02115.
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Foye
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Jones
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Ghoshal
D000475:Alkenes / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002627:Chemistry, Physical; D004220:Disulfides / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity; D005260:Female; D007928:Lethal Dose 50; D051379:Mice; D008810:Mice, Inbred C57BL; D011837:Radiation-Protective Agents / Q000138:chemical synthesis* / Q000633:toxicity
D000475:Alkenes; D004220:Disulfides; D011837:Radiation-Protective Agents