Nonsteroidal antiinflammatory agents. IV. Syntheses of pyridobenzoxepin, pyridobenzothiepin and their acetic acid derivatives.
作者:HIROAKI TAGAWA、SHIRO KUBO、FUMIYOSHI ISHIKAWA
DOI:10.1248/cpb.29.3515
日期:——
As part of a search for new antiinflammatory agents, some new tricyclic compounds and their acetic acid derivatives were prepared. Pyrido [2, 3-c] [1] benzoxepin-5 (11H)-one (4a) and pyrido [3, 2-c] [1] benzoxepin-11 (5H)-one (10a) and their thiepin analogs (4b, 10b) were synthesized by cyclization of the corresponding pyridinecarboxylic acid derivatives (3a, 3b, 9a and 9b) with polyphosphoric acid (PPA). The acetic acid derivatives (12a-b) of 4a-b were prepared via methyl derivatives (14a-b) of 4a-b. Their antiinflammatory activities were less potent than those of the corresponding dibenz [b, e] oxepin- and dibenz-[b, e] thiepinacetic acids.
为了寻找新的抗炎药物,我们制备了一些新的三环化合物及其乙酸衍生物。吡啶并[2,3-c] [1] 苯并氧杂卓-5 (11H)-酮(4a)和吡啶并[3,2-c] [1] 苯并氧杂卓-11 (5H)-酮(10a)及其硫杂卓类似物(4b、10b)是通过相应的吡啶甲酸衍生物(3a、3b、9a 和 9b)与多磷酸(PPA)环化合成的。通过 4a-b 的甲基衍生物(14a-b)制备出 4a-b 的乙酸衍生物(12a-b)。它们的抗炎活性低于相应的二苯并[b, e]氧杂卓酸和二苯并[b, e]硫杂卓酸。