5-Benzamidoisoquinolin-1-ones and 5-(ω-Carboxyalkyl)isoquinolin-1-ones as Isoform-Selective Inhibitors of Poly(ADP-ribose) Polymerase 2 (PARP-2)
摘要:
PARP-2 is a member of the poly(ADP-ribose) polymerase family, with some activities similar to those of PARP-1 but with other distinct roles. Two series of isoquinolin-1-ones were designed, synthesized, and evaluated as selective inhibitors of PARP-2, using the structures of the catalytic sites of the isoforms. A new efficient synthesis of 5-aminoisoquinolin-1-one was developed, and acylation with acyl chlorides gave 5-acylaminoisoquinolind-1-ones. By examination of isoquinolin-1-ones with carboxylates tethered to the 5-position, Heck coupling of 5-iodoisoquinolin-1-one furnished the 5-CH = CHCO(2)H compound for reduction to the 5-propanoic acid. Alkylation of 5-aminoisoquinolin-1-one under mildly basic conditions, followed by hydrolysis, gave 5-(carboxymethylamino)isoquinolin-1-one, whereas it was alkylated at 2-N with methyl propenoate and strong base. Compounds were assayed in vitro for inhibition of PARP-1 and PARP-2, using Flash Plate and solution-phase assays, respectively. The 5-benzamidoisoquinolin-1-ones were more selective for inhibition of PARP-2, whereas the 5-(omega-carboxyalkl)isoquinolin-1-ones were less so. 5-Benzamidoisoquinolin-1-one is the most PARP-2-selective compound (IC(50(PARP-1))/IC(50(PARP-2)) = 9.3) to date, in a comparative study.
5-Benzamidoisoquinolin-1-ones and 5-(ω-Carboxyalkyl)isoquinolin-1-ones as Isoform-Selective Inhibitors of Poly(ADP-ribose) Polymerase 2 (PARP-2)
摘要:
PARP-2 is a member of the poly(ADP-ribose) polymerase family, with some activities similar to those of PARP-1 but with other distinct roles. Two series of isoquinolin-1-ones were designed, synthesized, and evaluated as selective inhibitors of PARP-2, using the structures of the catalytic sites of the isoforms. A new efficient synthesis of 5-aminoisoquinolin-1-one was developed, and acylation with acyl chlorides gave 5-acylaminoisoquinolind-1-ones. By examination of isoquinolin-1-ones with carboxylates tethered to the 5-position, Heck coupling of 5-iodoisoquinolin-1-one furnished the 5-CH = CHCO(2)H compound for reduction to the 5-propanoic acid. Alkylation of 5-aminoisoquinolin-1-one under mildly basic conditions, followed by hydrolysis, gave 5-(carboxymethylamino)isoquinolin-1-one, whereas it was alkylated at 2-N with methyl propenoate and strong base. Compounds were assayed in vitro for inhibition of PARP-1 and PARP-2, using Flash Plate and solution-phase assays, respectively. The 5-benzamidoisoquinolin-1-ones were more selective for inhibition of PARP-2, whereas the 5-(omega-carboxyalkl)isoquinolin-1-ones were less so. 5-Benzamidoisoquinolin-1-one is the most PARP-2-selective compound (IC(50(PARP-1))/IC(50(PARP-2)) = 9.3) to date, in a comparative study.
COMPOSITIONS AND METHODS FOR TREATING CANCER USING COMPOSITIONS COMPRISING AN INHIBITOR OF ENDOTHELIN RECEPTOR ACTIVITY
申请人:The California Institute of Technology
公开号:EP1807117A2
公开(公告)日:2007-07-18
Compositions and methods for treating cancer using compositions comprising an inhibitor of endothelin receptor activity
申请人:Lahav Ronit
公开号:US20060094676A1
公开(公告)日:2006-05-04
Elevated ETRB activity, BCL-2A1 activity and/or PARP-3 activity was detected in cancer cells, and determined to be associated with growth and proliferation of the cancer cells. Accordingly, methods are provided for treating cancer by reducing or inhibiting the ETRB activity, BCL-2A1 activity and/or PARP-3 activity. Also provided are methods of determining the responsiveness of cancer cells to treatment with inhibitors of ETRB activity, BCL-2A1 activity and/or PARP-3 activity. Further, decreased cell viability was observed to correlate with reduction in ETRB expression, and reduction in ETRB protein levels by siRNA led to an increase in cell death.
[EN] COMPOSITIONS AND METHODS FOR TREATING CANCER USING COMPOSITIONS COMPRISING AN INHIBITOR OF ENDOTHELIN RECEPTOR ACTIVITY<br/>[FR] COMPOSITIONS ET METHODES DE TRAITEMENT CONTRE LE CANCER A L'AIDE DE COMPOSITIONS COMPRENANT UN INHIBITEUR DE L'ACTIVITE DU RECEPTEUR DE L'ENDOTHELINE
申请人:CALIFORNIA INST OF TECHN
公开号:WO2006050026A2
公开(公告)日:2006-05-11
[EN] Elevated ETRB activity, BCL-2A1 activity and/or PARP-3 activity was detected in cancer cells, and determined to be associated with growth and proliferation of the cancer cells. Accordingly, methods are provided for treating cancer by reducing or inhibiting the ETRB activity, BCL-2A1 activity and/or PARP-3 activity. Also provided are methods of determining the responsiveness of cancer cells to treatment with inhibitors of ETRB activity, BCL-2A1 activity and/or PARP-3 activity. Further, decreased cell viability was observed to correlate with reduction in ETRB expression, and reduction in ETRB protein levels by siRNA led to an increase in cell death. [FR] On a détecté une activité élevée du récepteur de l'endothéline de type B (ETRB), de BCL-2A1 et/ou de PARP-3 dans des cellules cancéreuses et on a déterminé que cette activité élevée était associée à la croissance et à la prolifération des cellules cancéreuses. Cette invention se rapporte par conséquent à des méthodes de traitement du cancer qui consistent à réduire ou à inhiber l'activité ETRB, l'activité BCL-2A1 et/ou l'activité PARP-3; et à des méthodes permettant de déterminer la faculté de réponse des cellules cancéreuses au traitement reposant sur des inhibiteurs de l'activité ETRB, de l'activité BCL-2A1 et/ou de l'activité PARP-3. On a observé qu'une diminution de la viabilité cellulaire était en corrélation avec une réduction de l'expression de ETRB et que la réduction des taux de protéines ETRB produite par l'ARNic induisait une augmentation de la mort cellulaire.
5-Benzamidoisoquinolin-1-ones and 5-(ω-Carboxyalkyl)isoquinolin-1-ones as Isoform-Selective Inhibitors of Poly(ADP-ribose) Polymerase 2 (PARP-2)
作者:Peter T. Sunderland、Esther C. Y. Woon、Archana Dhami、Aoife B. Bergin、Mary F. Mahon、Pauline J. Wood、Louise A. Jones、Sophie R. Tully、Matthew D. Lloyd、Andrew S. Thompson、Hashim Javaid、Niall M. B. Martin、Michael D. Threadgill
DOI:10.1021/jm1010918
日期:2011.4.14
PARP-2 is a member of the poly(ADP-ribose) polymerase family, with some activities similar to those of PARP-1 but with other distinct roles. Two series of isoquinolin-1-ones were designed, synthesized, and evaluated as selective inhibitors of PARP-2, using the structures of the catalytic sites of the isoforms. A new efficient synthesis of 5-aminoisoquinolin-1-one was developed, and acylation with acyl chlorides gave 5-acylaminoisoquinolind-1-ones. By examination of isoquinolin-1-ones with carboxylates tethered to the 5-position, Heck coupling of 5-iodoisoquinolin-1-one furnished the 5-CH = CHCO(2)H compound for reduction to the 5-propanoic acid. Alkylation of 5-aminoisoquinolin-1-one under mildly basic conditions, followed by hydrolysis, gave 5-(carboxymethylamino)isoquinolin-1-one, whereas it was alkylated at 2-N with methyl propenoate and strong base. Compounds were assayed in vitro for inhibition of PARP-1 and PARP-2, using Flash Plate and solution-phase assays, respectively. The 5-benzamidoisoquinolin-1-ones were more selective for inhibition of PARP-2, whereas the 5-(omega-carboxyalkl)isoquinolin-1-ones were less so. 5-Benzamidoisoquinolin-1-one is the most PARP-2-selective compound (IC(50(PARP-1))/IC(50(PARP-2)) = 9.3) to date, in a comparative study.