Oblon, McClelland, Maier & Neustadt, L.L.P.
Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
A compound represented by formula (1): wherein R1 to R7, R11 to R18, L1 to L3, a to c, n, and Ar are as defined in the description,  provides an organic electroluminescence device having an emission efficiency and a device lifetime further improved. 
IDEMITSU KOSAN CO., LTD.
C H C H H H H H H H
C07D H01L C07D H01L H01L H01L H01L H01L H01L H01L
inventional inventional inventional inventional inventional inventional inventional additional inventional inventional
Yu Tasuku Hirokatsu Yumiko
Kudo Haketa Ito Mizuki