GNE-049

• CAT Number: I019841
• CAS Number: 1936421-41-8
• Molecular Formula: C27H32F2N6O2
• Molecular Weight: 510.58
• Purity: ≥95%
• Synonyms: 1-[3-[7-(difluoromethyl)-6-(1-methylpyrazol-4-yl)-3,4-dihydro-2H-quinolin-1-yl]-1-(oxan-4-yl)-6,7-dihydro-4H-pyrazolo[4,3-c]pyridin-5-yl]ethanone
• InChI: InChI=1S/C27H32F2N6O2/c1-17(36)33-9-5-24-23(16-33)27(31-35(24)20-6-10-37-11-7-20)34-8-3-4-18-12-21(19-14-30-32(2)15-19)22(26(28)29)13-25(18)34/h12-15,20,26H,3-11,16H2,1-2H3
• InChIKey: LWXLECMNBTVASW-UHFFFAOYSA-N
• SMILES: CC(=O)N1CCC2=C(C1)C(=NN2C3CCOCC3)N4CCCC5=CC(=C(C=C54)C(F)F)C6=CN(N=C6)C

GNE-049 is a highly potent and selective CBP inhibitor with an IC50 of 1.1 nM in TR-FRET assay. GNE-049 also inhibits BRET and BRD4(1) with IC50s of 12 nM and 4200 nM, respectively[1].
GNE-049 is selected for further profiling as it has the best balance of liver microsomes (LM) stability, selectivity, and cellular potency GNE-049 has excellent potency in the BRET cellular assay and, in an orthogonal measure of the target engagement, GNE-049 is shown to inhibit the expression of MYC (MV4-11 cell line) with an EC50 of 14 nM[1].
GNE-049 demonstrates acceptable PK in mouse, rat, dog, and monkey. Determination of potency versus a selection of bromodomains revealed that GNE-049 is selective for CBP/P300 and, importantly, quite selective (3820-fold) over BRD4(1). GNE-049 is further evaluated in a rat single dose (30-250 mg/kg QD) toxicokinetic study. Adverse central nervous system (CNS)-related signs (e.g., marked hyperactivity and vocalization) are observed in several of the rats at the 250 mg/kg dose level. Furthermore, at the 250 mg/kg dose level, the ratio of the unbound drug concentration in brain to unbound drug concentration in plasma (Kp,uu) 3 h post dose is determined to be 0.43, indicating that GNE-049 is penetrating into the CNS and potentially resulting in the observed toxicity[1].

Reference

[1]. Romero FA, et al. GNE-781, A Highly Advanced Potent and Selective Bromodomain Inhibitor of Cyclic Adenosine Monophosphate Response Element Binding Protein, Binding Protein (CBP). J Med Chem. 2017 Nov 22;60(22):9162-9183.
 [Content Brief]