2-Amino-5-tert-butyl-2-oxazoline (ATBO, 2) was synthetized from 3,3-di
methyl-2-iodobutyl isocyanate via N-(3,3-dimethyl-2-iodobutyl)urea (1)
. The structures of compounds 1 and 2 are based on analytical and spec
troscopic data. Compound 2 induced in rats and mice a peripheral antin
ociceptive effect through both spinal and supraspinal mechanisms. ATBO
did not impair motor coordination or activity of the experimental ani
mals.