| 摘要 |
1,263,678. Quinoxaline-di-N-oxide derivative. FARBENFABRIKEN BAYER A.G. 9 July, 1970 [10 July, 1969], No. 33384/70. Heading C2C. The invention comprises the compound of formula and a process for making it by reacting in a diluent an acetal of a 2-carbamyl-3-formylquinoxaline-di-N-oxide with at least the stoichiometric amounts of inorganic or organic acid and water, at 0-50‹. Anti-bacterial compositions for pharmaceutical or veterinary use comprise the compound of the above formula in admixture with a solid or liquid diluent or carrier. |
