White & Case LLP
Method for preparing intermediate of 4-methoxypyrrole derivative
The present invention relates to a method for preparing intermediates of 4-methoxypyrrole derivatives. The preparation method according to the present invention has advantages that the production cost can be lowered by using inexpensive starting materials, a high-temperature reaction is not required as a whole, inexpensive and non-explosive reagents are used instead of (trimethylsilyl)diazomethane, and further an intermediate of 4-methoxypyrrole derivatives can be prepared as a whole at a high yield.
DAEWOONG PHARMACEUTICAL CO., LTD.
C A Y C
C07D A61K Y02P C07D
inventional inventional additional inventional
Jeong-Taek Seung Chul Jeong-Hyun
Shin Lee Son