core of the natural product salviadione (5), a series of furan-fused BCD hybrids of 5 with 2 was rationally designed with the aim to improve both PK properties and the anti-inflammatory activity. A biomimetic synthetic approach featuring one-pot tandem N-heterocyclization was first developed for convenient assembly of salviadione (56% overall yield over 2 steps) and the designed hybrids (35–85% yields
急性肺损伤(ALI)是一种炎症性疾病,没有有效的药物治疗方法。抗炎性
天然产物丹参酮IIA(2)对ALI的治疗潜力因其不良的药代动力学(PK)特性而受到严重损害。由独特苯并启发[ DEF ]
咔唑-3,5-二酮(BCD)的
天然产物salviadione(的核心5),一系列的
呋喃稠合的BCD杂交体5与2合理设计旨在改善PK特性和抗炎活性。首次开发出一种具有一锅式串联N-杂环化作用的仿生合成方法,可方便地组装丹参二酮(2步总收率56%)和设计的杂种(一步收率35-85%)。与2相比,大多数所得化合物显示出对LPS诱导的巨噬细胞促炎性细胞因子释放的抑制作用显着增强。特别是,化合物15a不仅在体外具有最强的活性,而且还表现出显着改善的代谢稳定性(增强了4至7倍),药代动力学特性(T 1/2 = 4.05 h;F= 30.2%),并具有较好的肺组织分布(选择性11到300倍)。在小鼠中进行的一项体内研究表明,以5