145301-14-0Relevant articles and documents
Anellated pyridine compounds from hydrocodone and oxycodone, I: 1,12-Epoxy-6,12a-iminoethano-naphtho[2,1-g]quinolines
Gorlitzer,Noack
, p. 629 - 636 (2007/10/02)
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