US 11,856,845 B2
Compound
Nazrul Islam, Cambourne (GB); William Tarran, Godmanchester (GB); and Jean-Benoit Giguere, Cambridge (GB)
Assigned to Sumitomo Chemical Company Limited, Tokyo (JP)
Appl. No. 16/955,756
Filed by Sumitomo Chemical Company Limited, Tokyo (JP)
PCT Filed Dec. 20, 2018, PCT No. PCT/GB2018/053722
§ 371(c)(1), (2) Date Jun. 18, 2020,
PCT Pub. No. WO2019/122900, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 1721673 (GB), filed on Dec. 21, 2017.
Prior Publication US 2020/0321532 A1, Oct. 8, 2020
Int. Cl. C07D 249/08 (2006.01); H10K 85/60 (2023.01); H10K 50/17 (2023.01); H10K 71/00 (2023.01); H10K 71/30 (2023.01); H10K 71/40 (2023.01)
CPC H10K 85/654 (2023.02) [C07D 249/08 (2013.01); H10K 85/631 (2023.02); H10K 50/171 (2023.02); H10K 71/00 (2023.02); H10K 71/30 (2023.02); H10K 71/40 (2023.02)] 19 Claims
 
1. A compound of formula (I):

OG Complex Work Unit Chemistry
wherein R1 and R2 are each independently a linear, branched or cyclic C1-20 alkyl group; and
Ar1 and Ar2 are each independently an aromatic or heteroaromatic group which is unsubstituted or substituted with one or more substituents.