abstract |
1-Ethyl-imidazoles of the formula OR A PHARMACEUTICALLY ACCEPTABLE NONTOXIC SALT THEREOF, ARE PRODUCED BY A. REACTING A COMPOUND OF THE FORMULA WITH IMIDAZOLE; OR B. WHEN R1 is hydrogen, reacting a compound of the formula WITH IMIDAZOLE IN THE PRESENCE OF AN ACID BINDING AGENT. In the case of the salts the free base produced is reacted with an appropriate acid.n[US3940413A] |