Oblon, McClelland, Maier & Neustadt, L.L.P.
Compound, material for organic electroluminescence elements, organic electroluminescence element, and electronic device
A compound represented by formula (1): wherein R1 to R5, a to e, L1 to L3, Ar, and X are as defined in the description. 
IDEMITSU KOSAN CO., LTD.
H H C H H H H C C C H H H H H C
H01L H01L C09K H01L H01L H01L H01L C07D C07D C07D H01L H01L H01L H01L H01L C09K
additional additional inventional additional inventional additional additional inventional inventional inventional inventional inventional additional additional inventional additional
Hirokatsu Taro Tomoki Masahiro
Ito Yamaki Kato Kawamura