Ozonolysis of some 8-alkoxyquinolines, and synthesis of a precursor to the non-sedating antihistamine Claritin
作者:Mathias C. Eichler、David H. Grayson
DOI:10.3998/ark.5550190.p008.843
日期:——
near-ambient conditions. The compou nds can be utilized as intermediates for syntheses of the tricyclic ketone 8-chloro-6,11-dih y ro-5H-benzo[5,6]cyclohepta[1,2b]pyridin11-one, a precursor to the important non-sedating a ntihistamine Claritin.
3-甲酰基-2-甲氧基羰基吡啶和3-甲酰基吡啶-2-羧酸异丙酯均通过在接近环境条件下8-甲氧基或8-异丙氧基喹啉的臭氧分解而在一个步骤中有效地获得。该化合物可用作合成三环酮 8-chloro-6,11-dih y ro-5H-benzo[5,6]cyclohepta[1,2b]pyridin11-one 的中间体,这是重要的非- 镇静抗组胺药 Claritin。