| 摘要 |
<p>N, N'-Dioxoquinazolines of formula (I) are prepd. by reacting a cpd. of formula (II), with a cpd. H2NNHA and a base contg. alcohol and in the presence of a morpholine, (where A is -C(:NH)NH2, COOMi or COMe). (I) are used as antibiotics and animal feed additives.</p> |
