Pd-Catalyzed Decarboxylative Sonogashira Reaction via Decarboxylative Bromination
作者:Quandi Jiang、Hongyi Li、Xiaofeng Zhang、Biping Xu、Weiping Su
DOI:10.1021/acs.orglett.8b00772
日期:2018.4.20
The decarboxylativealkynylation of (hetero)aryl carboxylicacids with terminal alkynes has been achieved by using a Pd(PPh3)4/PCy3 catalyst. This Pd-catalyzed method exhibits good functional group tolerance for both coupling partners and enables chemical modification of complex molecules. The establishment of this decarboxylativealkynylation reaction is attributed to the discovery of a highly selective
Naturally occurring antrocamphin A (1) is a potent anti-inflammatory compound from the edible fungus Antrodia camphorata (Taiwanofungus camphoratus), whose wild fruiting body is used as a valuable folk medicine in Taiwan. This study is the first total synthesis of antrocamphin A (1) and its analogs. Their inhibition ability on NO release, superoxide anion generation, elastase release and platelet aggregation are reported herein.