1957 年 77 巻 7 号 p. 794-795
Nitration of N-methyl-15-aza-des-N-morphinan with fuming nitric acid in glacial acetic acid afforded two kinds of nitration products. The main product was found, through reduction and diazotization to the hydroxy compound, to be 3-hydroxy compound, proving that the nitro group had entered the 3-position.