Novel ( N -Ferrocenylmethyl)amines and ( N -Ferrocenylmethylen)imines derived from vicinal steroid amino alcohols and amines: synthesis, molecular structure, and biological activity
作者:Reimar Krieg、Ralf Wyrwa、Ute Möllmann、Helmar Görls、Bruno Schönecker
DOI:10.1016/s0039-128x(98)00062-2
日期:1998.10
4a-d, 7b, and 10b exhibited outstanding broad antimicrobial activity particularly against mycobacteria and multi-resistant staphylococci. Thus, they can be considered as new lead structures. In contrast, the analogous 3 alpha-(ferrocenylmethyl)amino-cholestanes 12 possessed only weak activity. The reaction of the four isomeric amino alcohols 1a-d (Scheme 1) with ferrocenecarbaldehyde was studied. 1b
合成了具有潜在生物活性和潜在兴趣的新型甾族(N-二茂铁基甲基)胺类,作为金属配合物的手性配体。体外筛选了新化合物作为抗菌剂的潜力。描述了新的甾族二茂铁的合成,包括两个X射线晶体结构和生物学分析。16-(二茂铁基甲基)氨基雌激素4a-d,7b和10b表现出出色的广泛抗菌活性,特别是对分枝杆菌和多重耐药葡萄球菌。因此,它们可以被认为是新的引线结构。相反,类似的3α-(二茂铁基甲基)氨基-胆甾烷12仅具有弱活性。研究了四种异构氨基醇1a-d(方案1)与二茂铁甲醛的反应。具有16 / 17-反式构型的1b和1c几乎定量地产生(E)-席夫碱2b和2c(方案2)。与反式化合物相反,顺式构型的氨基醇1a和1d的缩合提供了席夫碱(分别为2a和2d)及其相应的1,3-恶唑烷(分别为3a和3d)的互变异构混合物。通过在乙醇中用硼氢化钠还原互变异构体混合物和均匀的席夫碱,以优异的产率获得了新型的(N-二茂铁基甲