| Identification | Back Directory | [Name]
GDC-0084 | [CAS]
1382979-44-3 | [Synonyms]
RG7666
RG-7666
CS-2290
GDC-0084
RG 7666)
Paxalisib
GDC-0084(RG7666)
GDC-0084 (GDC0084
Paxalisib (GDC-0084)
GDC-0084;GDC 0084;RG7666;RG-7666;RG 7666
RG7666; RG-7666; RG 7666; GDC-0084; GDC0084; GDC 0084
5-(6,6-dimethyl-4-morpholino-8,9-dihydro-6H-[1,4]oxazino[4,3-e]purin-2-yl)pyrimidin-2-amine
5-[8,9-Dihydro-6,6-dimethyl-4-(4-morpholinyl)-6H-[1,4]oxazino[4,3-e]purin-2-yl]-2-pyrimidinamine
5-[6,6-Dimethyl-4-(4-morpholinyl)-8,9-dihydro-6H-[1,4]oxazino[4,3-e]purin-2-yl]-2-pyrimidinamine
2-Pyrimidinamine, 5-[8,9-dihydro-6,6-dimethyl-4-(4-morpholinyl)-6H-[1,4]oxazino[4,3-e]purin-2-yl]- | [Molecular Formula]
C18H22N8O2 | [MDL Number]
MFCD30187522 | [MOL File]
1382979-44-3.mol | [Molecular Weight]
382.42 |
| Chemical Properties | Back Directory | [density ]
1.60±0.1 g/cm3(Predicted) | [storage temp. ]
Store at -20°C | [solubility ]
insoluble in H2O; insoluble in EtOH; ≥2.83 mg/mL in DMSO with ultrasonic | [form ]
Solid | [pka]
2.62±0.40(Predicted) |
| Hazard Information | Back Directory | [Uses]
GDC-0084 is an inhibitor of phosphoinositide 3-kinase (PI3K) and mTOR (1,2). Inhibitors of PI3K are useful compounds for developing treatments for brain tumors. | [Preparation]
Stumpf et al. at Genentech Inc. (Roche group) developed an efficient multikilogram process to synthesize the brain penetrant PI3K inhibitor, GDC?\0084, a potential drug candidate for the treatment of several brain cancers. An efficient Suzuki coupling reaction between a chloropyrimidine and an arylboronic ester using a palladium catalyst at low loading was reported. The optimized conditions were demonstrated on 6.75 kg of a chloropyrimidine intermediate, providing 7.49 kg of crude GDC?\0084 (94% yield, 99.4% HPLC purity). Using the commercially available XPhos Pd G2 catalyst, instead of the usual PdCl2(dppf)·CH2Cl2 catalyst, it was possible to reduce the catalyst loading from 2 to 0.5 mol%. A final scavenging/recrystallization combination from Si?\Thiol (a solid?\supported resin) and acetic acid/water provided the crude GDC?\0084 with the required purity and polymorphic form (off?\white solid, 6.41 kg, 83% yield, 99.7% HPLC purity).
Genentech’s route to GDC?\0084 employing a pivotal Suzuki reaction. | [Biological Activity]
gdc-0084 is a potent and brain penetrant inhibitor of pi3k and mtor with ki values of 2 nm and 70 nm for pi3kα and mtor, respectively [1].glioblastoma (gbm) is the most common primary brain tumor in adults and aberrant pi3k signaling is associated with more than 80% of cases. the pi3k pathway represents a potential target for the treatment of this disease and the inhibitors would need to freely cross the blood-brain barrier (bbb) [1][2].gdc-0084 is a potent and brain penetrant inhibitor of pi3k and mtor. in vitro kinase assay, gdc-0084 exhibited ki values of 2 nm, 46 nm, 3 nm, 10 nm and 70 nm for pi3kα, pi3kβ, pi3kδ, pi3kγ and mtor, respectively. in five different gbm cell lines, gdc-0084 had antiproliferative activities with ec50 values ranging from 0.3 to 1.1 μm. gdc-0084 has excellent human metabolic stability in microsomal and hepatocyte incubations [1]. in transfected cell lines over-expressing human or mouse p-gp or bcrp, gdc-0084 was a poor substrate of these efflux transporters. in mice brain, gdc-0084 significantly lowered pakt and ps6 levels [2].in rats after a 15 mg/kg dose of gdc-0084, the total brain-to-plasma ratio was 1.9-3.3. in subcutaneous u87 glioblastoma tumor xenograft mice model, gdc-0084 significantly inhibited tumor growth in a dose-dependent way. gdc-0084 also concentration-dependently inhibited pakt [1].[1]. heffron tp1, ndubaku co1, salphati l1, et al. discovery of clinical development candidate gdc-0084, a brain penetrant inhibitor of pi3k and mtor. acs med chem lett. 2016 feb 16;7(4):351-6.[2]. salphati l, alicke b, heffron tp, et al. brain distribution and efficacy of the brain penetrant pi3k inhibitor gdc-0084 in orthotopic mouse models of human glioblastoma. drug metab dispos. 2016 dec;44(12):1881-1889. epub 2016 sep 16. |
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