PHARM MED ORG: In 1853, Henry How heated morphine with __, hoping to convert the alkaloid to __. He obtained, however, a new substance of the __.

Question

In 1853, Henry How heated morphine with __, hoping to convert the alkaloid to __. He obtained, however, a new substance of the __.

Dwight Obillos · Accepted Answer

1 methyl iodide 
2 codeine 
3 quaternary salt of morphine

In 1853, Henry How heated morphine with , hoping to convert the alkaloid to . He obtained, however, a new substance of the __.