(13S,14R)-13-O-acetyl-1,8-dihydroxy-N-methylcanadine <=> 3-O-acetyl-4'-O-demethylpapaveroxine + H(+)
(13s,14r)-13-o-acetyl-1,8-dihydroxy-n-methylcanadine <=> 3-o-acetyl-4'-o-demethylpapaveroxine + h(+)