Compounds of formula (I) or derivatives thereof:
wherein A, B, Z, R
1
, R
2a
, R
2b
, R
x
, R
8
, and R
9
are as defined in the specification, a process for the preparation of such compounds, pharmaceutical compositions comprising such compounds and the use of such compounds in medicine.
Organic Electroluminescent Element, Material for Organic Electroluminescent Element and Light Emitting Device, Display Device, and Illumination Device, Each Employing Organic Electroluminescent Element
申请人:UDC Ireland Limited
公开号:US20140291660A1
公开(公告)日:2014-10-02
This application relates in part to an organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and an organic layer(s) including a light emitting layer, in which the organic layer(s) contains a compound represented by the following formula (1), in which R
1
to R
8
are each hydrogen or a substituent, at least one of R
1
to R
4
and at least one of R
5
to R
8
are each a substituent represented by the formula (2); R
9
to R
12
, Z
1
to Z
4
, Ar
1
, Ar
2
, and L
1
are as defined herein.