Three-Component Synthesis of Quinolines Based on Radical Cascade Visible-Light Photoredox Catalysis
作者:Jun-Ho Choi、Cheol-Min Park
DOI:10.1002/adsc.201800734
日期:2018.9.17
Synthesis of highly substituted quinolines has been developed based on three‐component radicalcascadebased on visible‐light photoredoxcatalysis. This tandem coupling reaction has been coordinated to proceed with high chemoselectivity based on the differential electronic properties of coupling partners. Subjection of electron‐rich β‐aminoacrylates with electron‐deficient halides and alkenes to the
There is provided an indole derivative represented by the above formula (I) or a pharmaceutically acceptable salt thereof which is useful for the treatment of malignant tumor or a brain neurodegenerative disease:
(wherein C ring represents a benzene ring or a cyclohexene ring; X and Y are the same or different and each represent —CH
2
—, —CH(OH)—, —CH(OR
x
)—, —CH(SR
Y
)— or carbonyl; R
1
and R
2
are the same or different and each represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted lower alkenyl or substituted or unsubstituted lower alkanoyl or R
1
and R
2
form a benzene ring together two carbon atoms each being adjacent thereto; and R
3
, R
4
and R
5
are the same or different and each represent a hydrogen atom, substituted or unsubstituted lower alkyl, etc.)