An Efficient Syntesis of 1,8-Naphthyridin-2(1<i>H</i>)-ones: Synthesis of Leukotriene Inhibitor SCH 37224
作者:P. L. Nyce、D. Gala、M. Steinman
DOI:10.1055/s-1991-26519
日期:——
A new, efficient synthesis of 1,8-naphthyridin-2(1H)-ones as applied to the synthesis of the leukotriene release inhibitor, 1,2-dihydro-1-phenyl-3-pyrrolidinio-2-oxo-1, 8-naphthyridin-4-olate inner salt (4) from methyl 2-phenylamino-3-pyridinecarboxylate, (1a), has been described. Towards this synthesis a new reaction procedure for the N-chloroacylation of 1a was developed. The high yield for the rest of the synthesis was obtained by establishing reaction conditions that utilized the solubility, and the stability properties 4.
本文介绍了一种新的、高效的 1,8-萘啶-2(1H)-酮合成方法,该方法适用于从 2-苯基氨基-3-吡啶甲酸甲酯(1a)合成白三烯释放抑制剂 1,2-二氢-1-苯基-3-吡咯烷-2-氧代-1,8-萘啶-4-酸内盐(4)。为了实现这一合成,我们开发了一种新的 1a N-氯酰化反应程序。其余合成的高产率是通过利用 4 的溶解性和稳定性建立反应条件而获得的。