| Identification | Back Directory | [Name]
CX-5461 | [CAS]
1138549-36-6 | [Synonyms]
CX-5461
CS-1938
CX-5461 500MG
CX-5461, >=98%
CX-5461/CX5461
CX-5461 USP/EP/BP
CX-5461;CX 5461;CX5461
RNA Polymerase I Inhibitor II, CX-5461 - CAS 1138549-36-6 - Calbiochem
2-(4-Methyl-1,4-diazepan-1-yl)-N-((5-methylpyrazin-2-yl)methyl)-5-oxo-5H-benzo[4,5]thiazolo[3
2-(Hexahydro-4-Methyl-1H-1,4-diazepin-1-yl)-N-[(5-Methyl-2-pyrazinyl)Methyl]-5-oxo-5H-benzothiazolo[3,2-a][1,8]napht
2-(4-methyl-1,4-diazepan-1-yl)-N-[(5-methylpyrazin-2-yl)methyl]-5-oxo-[1,3]benzothiazolo[3,2-a][1,8]naphthyridine-6-carboxamide
2-(4-Methyl-1,4-diazepan-1-yl)-N-((5-Methylpyrazin-2-yl)Methyl)-5-oxo-5H-benzo[4,5]thiazolo[3,2-a][1,8]naphthyridine-6-carboxaMide
2-(Hexahydro-4-methyl-1H-1,4-diazepin-1-yl)-N-[(5-methyl-2-pyrazinyl)methyl]-5-oxo-5H-benzothiazolo[3,2-a][1,8]naphthyridine-6-carboxamide
5H-Benzothiazolo[3,2-a][1,8]naphthyridine-6-carboxamide, 2-(hexahydro-4-methyl-1H-1,4-diazepin-1-yl)-N-[(5-methyl-2-pyrazinyl)methyl]-5-oxo- | [Molecular Formula]
C26H28N8O2S | [MDL Number]
MFCD21609261 | [MOL File]
1138549-36-6.mol | [Molecular Weight]
516.618 |
| Chemical Properties | Back Directory | [Boiling point ]
739.9±60.0 °C(Predicted) | [density ]
1.45 | [storage temp. ]
+2C to +8C | [solubility ]
insoluble in H2O; insoluble in EtOH; insoluble in DMSO | [form ]
Light beige powder | [pka]
8.53±0.20(Predicted) | [color ]
White to yellow |
| Hazard Information | Back Directory | [Definition]
ChEBI: CX-5461 is an organic heterotetracyclic compound that is 5-oxo-5H-[1,3]benzothiazolo[3,2-a][1,8]naphthyridine-6-carboxylic acid substituted by a 4-methyl-1,4-diazepan-1-yl group at position 2 and in which the carboxy group at position 6 is substituted by a [(5-methylpyrazin-2-yl)methyl]nitrilo group. An inhibitor of ribosomal RNA (rRNA) synthesis which specifically inhibits RNA polymerase I-driven transcription of rRNA in several cancer cell lines. It is currently in phase I/II clinical trials for advanced hematologic malignancies and triple-negative breast cancer with BRCA1/2 mutation. It has a role as an antineoplastic agent, an apoptosis inducer and an EC 2.7.7.6 (RNA polymerase) inhibitor. It is a diazepine, an organic heterotetracyclic compound, a member of pyrazines, a secondary carboxamide and a naphthyridine derivative. | [General Description]
A cell-permeable benzothiazole compound that selectively inhibits RNA polymerase I-mediated pre-rRNA transcription (IC50 = 142 nM in HCT-116), but not Pol II-mediated c-myc transcription, by preventing TAF SL1 and rDNA association). Effectively inhibits Pol I-dependent proliferation among 39 cancer cell lines (IC50<1 μM) in vitro and suppresses A375 (50 mg/kg/d p.o.) and MIA PaCa-2 (50 mg/kg/3d p.o.) tumor expansion in vivo. | [Biological Activity]
cx-5461 is a potent and orally bioavailable small-molecule inhibitor of rrna synthesis that specifically inhibits rna polymerase (pol) i-driven transcription with ic50 value of 142 nm. cx-5461 exhibits antiproliferative activity against human pancreatic tumor cells mia paca-2, human melanoma cells a375 and colorectal carcinoma cells hct-116 with ec50 values of 74, 58, and 167 nmol/l, respectively. [1].cx-5461 was revealed to inhibit pol i transcription via promoting the stabilization of p53. in addition, cx-5461 has been demonstrated to induce autophagy and senescence but not apoptosis in mia paca-2 and a375 cell lines. | [Biochem/physiol Actions]
Cell permeable: yes | [in vivo]
cx-5461 has shown to suppress tumor volume in both mia paca-2 and a375 derived xenograft mice models [1]. | [target]
Pol I | [References]
[1] drygin d1, lin a, bliesath j, ho cb, o'brien se, proffitt c, omori m, haddach m, schwaebe mk, siddiqui-jain a, streiner n, quin je, sanij e, bywater mj,hannan rd, ryckman d, anderes k, rice wg. targeting rna polymerase i with an oral small molecule cx-5461 inhibits ribosomal rna synthesis and solid tumor growth. cancer res. 2011 feb 15;71(4):1418-30 |
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