has been developed. A Mannich-type reaction between quinazolin-4-ones and N-Cbz propanal in the presence of AgOTf afforded quinazolinones (19–94% isolated yield) bearing a newly formed heterocycle with an alkylamine appendage that, upon N-Cbz deprotection and basification, triggered a domino rearrangement to afford 45 separable, ring-fused products. Several compounds inhibited growth of Naegleria fowleri
                                    已经开发了一种抗阿米巴克、环熔麦
金纳唑啉酮的三步合成方法。在 AgOTf 存在下,
喹唑啉-4-酮和 N-Cbz 
丙醛之间的曼尼希型反应得到
喹唑啉酮(19-94% 分离产率),带有新形成的杂环,带有烷胺附属物,在 N-Cbz 脱保护和碱化后,触发多米诺骨牌重排,得到 45 个可分离的环熔产物。几种化合物抑制了可导致致命人脑感染的福氏耐格里氏菌寄生虫的生长。因此,该方法提供了有前途的抗阿米巴支架的直接途径。