![]() |
|
|
1 From the Burroughs Wellcome and Company, U. S. A., Experimental Research Laboratories, Tuckahoe, New York
1. Two homologous series of alkyl ureas, the n-alkyl and iso-alkyl homologs, have been tested on mice for the presence of anesthetic properties.
2. All of these ureas, with the exception of the n-heptyl compound, which was too insoluble, were found to have anesthetic activity in varying degree.
3. The anesthetic effects and toxicities increased with the molecular weight. The increase of the anesthetic effects was more rapid than that of the toxicities, thus the compounds of 4, 5 and 6 carbon atoms had the more favorable physiological indices.
Submitted on July 24, 1934