A compound according to formula I:
or a pharmaceutically acceptable salt thereof; wherein R
1
, R
2
, R
3a
, R
3b
, R
3c
and R
3d
are as defined in the specification, pharmaceutical compositions thereof, and methods of use thereof.
Compounds with diazadibenzofurane or diazadibenzothiophene structures
申请人:Merck Patent GmbH
公开号:US11530224B2
公开(公告)日:2022-12-20
The present invention describes diazadibenzofuran or diazadibenzothiophene derivatives substituted by carbazole, fluorene, phenanthrene, benzofuran and/or benzothiophene groups, especially for use in electronic devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these.