W. Xu et al., Synthesis and opiate receptor binding properties of 17-methyl-6,7-dehydro-3,14-dihydroxy-4,5 alpha-epoxy-6,7 : 4 ',5 '-pyrimidinomorphinans, BIOORG MED, 9(23), 1999, pp. 3375-3380
A class of opioid receptor active derivatives of oxymorphone has been synth
esized using a common enaminone intermediate. The derivatives have heterocy
clic groups fused to the 6,7-positions of the morphinan system and all were
synthesized in high yield. A pyrazolo derivative is an agonist far the mu
and 6 receptors and an antagonist for the kappa receptor. (C) 1999 Elsevier
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