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Talk:Propiram

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Latest comment: 9 years ago by 81.99.74.135 in topic >fentanyl potency

Ref 7

[edit]

Ref 7 deals with the optical isomers and substitution of the pyridine ring. 3,3-dimethyl is the most potent and is still less potent than morphine. Considering the 5 step synthesis, this is of academic interest. No data exists on other N-piperidine opioids to see if potency is changed. Put simply, the 3,3 equates to the 3,3 dimethyl of the fentanyl class.  Preceding unsigned comment added by 81.99.74.135 (talk) 11:31, 5 March 2017 (UTC)Reply

>fentanyl potency

[edit]

Adding a 4-aryl group produced a compound that is x60 morphine. Combined with the 3,3 moiety, compounds in the region of 1000s of x morphine are possible. Of course, fentanyl synthesis is much simpler and the scope of the class means that ANPP analogues with a (2-furanyl) ethyl amine are x3 more potent while (2-thiazole) ethylamine is equipotent but with double the duration. This is of no commercial use but it's important to see how this class overlays fentanyl.  Preceding unsigned comment added by 81.99.74.135 (talk) 16:45, 16 March 2017 (UTC)Reply