Mannich reaction, new aminonaphthol derivatives substituted with 2- and 1-naphthol were synthesised. The stabilization of precursor bifunctional compounds via partially aromatic ortho-quinone methide intermediate was tested with different cyclic imines in [4 + 2] cycloaddition. Based on 1H NMR analysis, in the case of new α-amino acid esters the formation of a single product has been assumed. The NOE spectrum
                                    以
萘酚和吗啉为原料,以
乙醛酸乙酯为改性曼尼希反应中的醛组分,合成了新的被2-和1-
萘酚取代的
氨基
萘酚衍
生物。用不同的环状
亚胺在 [4 + 2] 环加成中测试了通过部分芳族邻苯醌甲基化物中间体对前体双功能化合物的稳定性。基于1 H NMR 分析,在新的 
α-氨基酸酯的情况下,假设形成单一产物。NOE谱证明新形成的立体中心的相对构型是反式的。这些化合物也在细菌中进行了测试,以减少或逆转抗生素耐药性。化合物13和14可抑制易感和耐
甲氧西林金黄色葡萄球菌的外排泵系统。