Indole compounds substituted at the 1- or 3-position by a (pyrid-3-yl)thiazolid-4-yl)alkyl-, (pyrid-3-yl)thiazolid-4-oyl)-, (pyrid-3-yl)dithiolan-4-yl)alkyl- or (pyrid-3-yl)dithiolan-4-oyl)- group are potent inhibitors of PAF and are useful in the treatment of PAF-related disorders including septic shock, respiratory distress syndrome, acute inflammation, delayed cellular immunity, parturtition, fetal lung maturation, and cellular differentiation.
Direct Synthesis of C4-Acyl Indoles via C–H Acylation
作者:Bo-Sheng Zhang、Ze-Qiang Zhang、Tian-Jiao Guo、João C. A. Oliveira、Svenja Warratz、Bao-Jie Deng、Yi-Ming Wang、Jun-Shi Zhou、Xue-Ya Gou、Xi-Cun Wang、Zheng-Jun Quan、Lutz Ackermann
DOI:10.1021/acs.orglett.4c01658
日期:2024.6.14
The direct synthesis of C4-acyl indoles deprived of C2 and C3 substituents has proven to be challenging, with scarce efficient synthetic routes being reported. Herein, we disclose a highly site-selectivepalladium-catalyzed C–H acylation for the construction of C4-acyl indoles via a Catellani–Lautens cyclization strategy. In addition, we systematically studied the ortho C–H acylation mechanism of iodoaniline