Novel tetracyclic imidazole derivatives: Synthesis, dynamic NMR study, and anti-inflammatory evaluation
作者:Renata Rupčić、Marina Modrić、Antun Hutinec、Ana Čikoš、Barbara Stanić、Milan Mesić、Dijana Pešić、Mladen Merćep
DOI:10.1002/jhet.376
日期:——
A series of tetracyclic imidazole derivatives 9a, 9b, 9c, 9d, 9e, 9f, 9g, 9h, 9i, 9j, 9k, 9l, 9m, 9n, 9o, 9p, 9r, 9s, 9t, 9v and 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h are prepared by multistep route starting from the known tricyclic diketones 2a, 2b, 2c, 2d. Intermediary dibenzooxepin[4,5‐d]imidazoles (3a, 3c) and dibenzothiepin[4,5‐d]imidazoles (3b, 3d) are N‐protected to 4e, 4f and to the isomeric
一系列四环咪唑衍生物9a,9b,9c,9d,9e,9f,9g,9h,9i,9j,9k,9l,9m,9n,9o,9p,9r,9s,9t,9v和10a,10b,10c,10d,10e,10f,从已知的三环二酮2a,2b,2c,2d开始,通过多步路线制备10g,10h。中间二苯并恶唑啉[4,5- d ]咪唑(3a,3c)和二苯并噻吩[4,5- d ]咪唑(3b,3d)被N-保护至4e ,4f和同分异构化合物5a,5b和6a,6b。异构体化合物5和6 分开了。化合物4,5,和6中C(2)的甲酰化,得到图7a,图7b,图7c,7d中,7E,7F,7克,7H,7I,7J。在最后一步中,将醛基还原,然后烷基化为两组异构的ω-二甲基氨基烷基衍生物9a,9b,9c,9d,9e,9f,9g,9h,9i,9j,9k,9l,9m,9n,9o,9p,9r,9s,9t,9v。N脱保护9i–9v生成化合物10a,10b