Upon acylation of 3-amino-2-methoxypyridines, two side products were discovered, a pyridone, 5,6, and 8, and a pyridyloxazine, 4 and 9. The ratios of these products can be affected by changes in the reaction parameters. When oxalyl chloride was the acylating agent a pyridone 13 was isolated.
对3-
氨基-
2-甲氧基吡啶进行酰化后,发现了两个副产物,
吡啶酮5,6和8,以及
吡啶基恶嗪4和9。这些产物的比例会受到反应参数变化的影响。当
草酰氯为酰化剂时,分离出
吡啶酮13。