Synthesis of butanoic acid 4,4′-[(4E, 6Z, 9Z-pentadecatrien-2-ynylidene)-bis with leukotriene- like activity: Novel acetylenic acetals and dithioacetals as antagonists of leukotriene-C4
作者:Anil K. Saksena、Michael J. Green、Pietro Mangiaracina、Jesse K. Wong、William Kreutner、Arax R. Gulbenkian
DOI:10.1016/s0040-4039(00)99018-x
日期:——
protected cysteine readily provided the hemi-thioacetals 9a and 11a related to leukotriene-E4. Use of acetylene-bis-(diethyl acetal) 12 led to a facile synthesis of the title compound 17a. Its corresponding hexahydro analogs displayed marked antagonist activity against LT-C4 induced contractions on isolated guinea pig lung parenchyma.
对称的乙缩醛5a与受保护的半胱氨酸的选择性交换反应易于提供与白三烯-E 4有关的半硫缩醛9a和11a 。乙炔双-(二乙缩醛)12的使用导致标题化合物17a的容易的合成。其相应的六氢类似物在分离的豚鼠肺实质上显示出明显的针对LT-C 4诱导的收缩的拮抗活性。