The present provides a condensed pyridine compound (I) represented by the following formula:
(wherein, R2 represents
ring A represents benzene ring, pyridine ring, thiophene ring or furan ring; and
B represents
its pharmaceutically acceptable salt or hydrates thereof, which is a clinically useful medicament having a serotonin antagonism, in particular, that for treating, ameliorating or preventing spastic paralysis or central muscle relaxants for ameliorating myotonia.
Stannylation of Aryl Halides, Stille Cross-Coupling, and One-Pot, Two-Step Stannylation/Stille Cross-Coupling Reactions under Solvent-Free Conditions
作者:Pavel S. Gribanov、Yulia D. Golenko、Maxim A. Topchiy、Lidiya I. Minaeva、Andrey F. Asachenko、Mikhail S. Nechaev
DOI:10.1002/ejoc.201701463
日期:2018.1.10
and without the use of high purity reagents. The developed synthetic procedures are versatile, robust, and easily scalable. The absence of solvent, and the elimination of isolation procedures of aryl stannanes makes SSC protocol simple, step economical, and highly efficient for the synthesis of biaryls via one-pot two-step procedure.