US 11,999,724 B2
Method for producing diarylpyridine derivatives
Yuichi Aki, Tokyo (JP); Fumihiko Toriyama, Tokyo (JP); Natsuki Sakurai, Tokyo (JP); Ai Kameda, Tokyo (JP); and Tomokazu Ogura, Tokyo (JP)
Assigned to Daiichi Sankyo Company, Limited, Tokyo (JP)
Appl. No. 17/252,469
Filed by Daiichi Sankyo Company, Limited, Tokyo (JP)
PCT Filed Jul. 3, 2019, PCT No. PCT/JP2019/026395
§ 371(c)(1), (2) Date Dec. 15, 2020,
PCT Pub. No. WO2020/009132, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 2018-127197 (JP), filed on Jul. 4, 2018.
Prior Publication US 2021/0188823 A1, Jun. 24, 2021
Int. Cl. C07D 405/14 (2006.01); B01J 23/44 (2006.01); C07D 319/12 (2006.01); C07D 405/12 (2006.01)
CPC C07D 405/14 (2013.01) [B01J 23/44 (2013.01); C07D 319/12 (2013.01); C07D 405/12 (2013.01)] 18 Claims
 
1. A production method comprising the step of reacting a compound represented by Formula (I):

OG Complex Work Unit Chemistry
with a chlorinating agent and dimethylformamide to obtain a compound represented by Formula (II):

OG Complex Work Unit Chemistry
or a salt thereof.