Anellated pyridine compounds from hydrocodone and oxycodone, I: 1,12-Epoxy-6,12a-iminoethano-naphtho[2,1-g]quinolines
The 7-benzylidene compounds 5, obtained from hydrocodone (1a) and oxycodone (1b), react with methyl β-amino crotonic acid or ethyl acetoacetate and ammonium acetate in acetic acid to yield the epimeric 1,4-dihydropyridine 6 and 7, which were separated by
Gorlitzer,Noack
p. 629 - 636
(2007/10/02)
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