i know that lots of lye and 2 full bottles of hydrocodone gave nothing using toluene. syrup/lyewater was discarded after attempts to let the layer settle for 15 minutes, and 5 days, nothing....isolation of the freebase i couldnt get it, but then again i didn't look shit up, so shit on my head i'm foolish (not stupid) - maybe even wise cuz then itd be acetic anhydride and diacetyl....
luck to all.