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Novel compounds show high affinity for specific cocaine
receptors in the brain, particularly dopamine transporter sites,
and have the formula ##STR1## Wherein Y=CONRR.sub.2, R.sub.1
=hydrogen, C.sub.1-5 alkyl, X=H, C.sub.1-6 alkyl, C.sub.3-8
cycloalkyl, C.sub.1-4 alkoxy, C.sub.1-6 alkynyl, halogen, amino,
acylamido, R and R.sup.2 may be saturated or unsaturated
substituents of 1-6 carbon atoms, aromatic, or combine to form
pyrrolidinyl, morpholinyl or piperidinyl moieties, and Z=H, I, Br,
Cl, F, CN, CF.sub.3 NO.sub.2, N.sub.3, OR.sub.1, CO.sub.2 NH.sub.2,
CO.sub.2 R.sub.1, C.sub.1-6 alkyl, NR.sub.4 R.sub.5, NHCOF.sub.5,
NHCO.sub.2 R.sub.6, wherein R.sub.4 -R.sub.6 are each C.sub.1-6
alkyl.