BI-2536 - CAS 755038-02-9

BI2536 is a potent Plk1 inhibitor with IC50 of 0.83 nM, BI2536 shows 4- and 11-fold greater selectivity against Plk2 and Plk3; BI2536 also is a BRD4 inhibitor(IC50= 25 nM).
IC50 Value: 0.83 nM (Plk1); 25 nM (BRD4)
Target: PLK; BRD4
in vitro: BI 2536 blocks the activities of Plk2 and Plk3 to a slightly lesser extent with IC50 of 3.5 nM and 9.0 nM, respectively. In HeLa cells, BI 2536 treatment ranging from 10-100 nM leads to the blocking of the recruitment of γ-tubulin and phosphorylation of Apc6 at mitotic centrosomes, inhibition of cohesin release from chromosome arms, induction of monopolar spindles, as well as a range of other mitotic processes that are known to depend on Plk1. BI 2536 treatment leads to the HeLa cells arrested in G2/M, subsequently a sub-G1 DNA peak indicative of DNA breakdown and apoptosis, and accumulated cleaved PARP p85 fragments in a concentration-dependent manner. BI 2536 inhibits the growth of a panel of 32 human cancer cell lines with EC50 of 2-25 nM, while blocking the proliferation of exponentially growing hTERT-RPE1, human umbilical vein endothelial cells (HUVECs), and normal rat kidney (NRK) cells with EC50 of 12-31 nM.
in vivo: BI 2536 given i.v. once or twice per week is highly efficacious in diverse xenograft models with acceptable tolerability by inhibiting cell proliferation through a mitotic arrest, and subsequently induction of tumor-cell death. Administration of BI 2536 at 50 mg/kg once or twice per week significantly inhibits growth of HCT 116 xenografts with T/C of 15% and 0.3%, respectively. BI 2536 treatment twice-weekly also leads to excellent tumor-growth in BxPC-3 and A549 models with T/C of 5% and 14%, respectively.

Catalog Number: I004792

CAS Number: 755038-02-9

PubChem Substance ID:355040198

Molecular Formula: C₂₈H₃₉N₇O₃

Molecular Weight:521.65

Purity: ≥95%

* For research use only. Not for human or veterinary use.

Synonym

Synonyms4-[[(7R)-8-cyclopentyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-3-methoxy-N-(1-methylpiperidin-4-yl)benzamide

Property

Molecular Formula: C₂₈H₃₉N₇O₃
Molecular Weight521.65
Target:PLK
SolubilityDMSO ≥100mg/mL Water <1.2mg/mL Ethanol ≥100mg/mL
Purity≥95%
Storage3 years -20C powder
MDLMFCD10565924
IC500.83 nM (Plk1); 25 nM (BRD4)

Computed Descriptor

InChIInChI=1S/C28H39N7O3/c1-5-22-27(37)34(3)23-17-29-28(32-25(23)35(22)20-8-6-7-9-20)31-21-11-10-18(16-24(21)38-4)26(36)30-19-12-14-33(2)15-13-19/h10-11,16-17,19-20,22H,5-9,12-15H2,1-4H3,(H,30,36)(H,29,31,32)/t22-/m1/s1
InChIKeyXQVVPGYIWAGRNI-JOCHJYFZSA-N
SMILESCCC1C(=O)N(C2=CN=C(N=C2N1C3CCCC3)NC4=C(C=C(C=C4)C(=O)NC5CCN(CC5)C)OC)C