A compound of the formula (1):
1
wherein —X
1
—X
2
— is a group of the formula: —C(═O)—N(R
7
)— or —C(R
8
)═N— (in which R
7
is hydrogen, substituted or unsubstituted alkyl, etc.; and R
8
is halogen, etc.); R
1
, R
2
and R
3
are independently hydrogen, substituted or unsubstituted alkyl, etc.; and R
4
is substituted or unsubstituted alkylene, or a prodrug thereof, or a pharmaceutically acceptable salt of the same, which exhibits an inhibitory activity of poly(ADP-ribose)polymerase (PARP) and is useful as remedies for diseases caused by the accelerated PARP activity such as brain ischemic disorders.
A compound of the formula (1):
wherein -X1-X2- is a group of the formula: -C(=O)-N(R7)- or -C(R8)=N- (in which R7 is hydrogen, substituted or unsubstituted alkyl, etc.; and R8 is halogen, etc.); R1, R2 and R3 are independently hydrogen, substituted or unsubstituted alkyl, etc.; and R4 is substituted or unsubstituted alkylene, or a prodrug thereof, or a pharmaceutically acceptable salt of the same, which exhibits an inhibitory activity of poly(ADP-ribose)-polymerase (PARP) and is useful as remedies for diseases caused by the accelerated PARP activity such as brain ischemic disorders.
Palladium-Catalyzed C-7 Selective CH Carbonylation of Indolines for Expedient Synthesis of Pyrroloquinazolinediones
作者:Pei-Long Wang、Yan Li、Lan Ma、Chen-Guang Luo、Zhen-Yu Wang、Quan Lan、Xi-Sheng Wang
DOI:10.1002/adsc.201501070
日期:2016.3.31
A novel palladium‐catalyzedC‐7 selectiveCH carbonylation of indolines with carbon monoxide for an expedient synthesis of pyrroloquinazolinediones, a structural motif with great potential in biologically active compounds, has been developed. Oxidation of the pyrroloquinazolinedione with 2,3‐dichloro‐5,6‐dicyano‐p‐benzoquinone (DDQ) could easily afford the corresponding indole‐based derivative in