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Details

Stereochemistry ABSOLUTE
Molecular Formula C15H18BrN7
Molecular Weight 376.254
Optical Activity UNSPECIFIED
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 6-BROMO-3-(1-METHYL-1H-PYRAZOL-4-YL)-5-((3S)-PIPERIDIN-3-YL)PYRAZOLO(1,5-A)PYRIMIDIN-7-AMINE

SMILES

CN1C=C(C=N1)C2=C3N=C([C@H]4CCCNC4)C(Br)=C(N)N3N=C2

InChI

InChIKey=GMIZZEXBPRLVIV-VIFPVBQESA-N
InChI=1S/C15H18BrN7/c1-22-8-10(6-19-22)11-7-20-23-14(17)12(16)13(21-15(11)23)9-3-2-4-18-5-9/h6-9,18H,2-5,17H2,1H3/t9-/m0/s1

HIDE SMILES / InChI

Molecular Formula C15H18BrN7
Molecular Weight 376.254
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 1 / 1
E/Z Centers 0
Optical Activity UNSPECIFIED

Description

MK-8776 (SCH-900776) is a checkpoint kinase 1 inhibitor which was developed by Merck for the treatment of cancer. The drug was tested in phase II clinical trials on patients suffering from acute myeloid leukemia (in combination with cytarabine) and in phase I on patients suffering from solid tumors or lymphoma (as monotherapy and in combination with gemcitabine).

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
3.0 nM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown
Primary
Unknown
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
1010 ng/mL
20 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
4970 ng/mL
80 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
4680 ng/mL
200 mg single, intravenous
MK-8776 plasma
Homo sapiens
6220 ng/mL
150 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
1220 ng/mL
40 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
1420 ng × h/mL
20 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
5060 ng × h/mL
80 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
8410 ng × h/mL
200 mg single, intravenous
MK-8776 plasma
Homo sapiens
19000 ng × h/mL
150 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
2250 ng × h/mL
40 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
7.28 h
20 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
7.38 h
80 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
6.28 h
200 mg single, intravenous
MK-8776 plasma
Homo sapiens
9.18 h
150 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens
7.67 h
40 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens

Funbound

ValueDoseCo-administeredAnalytePopulation
51%
40 mg/m² single, intravenous
MK-8776 plasma
Homo sapiens

Doses

PubMed

Sample Use Guides

In Vivo Use Guide
Patients receive cytarabine IV continuously over 72 hours on days 1-3 and 10-12 and Chk1 inhibitor MK-8776 IV over 30 minutes on days 2, 3, 11, and 12.
Route of Administration: Intravenous
In Vitro Use Guide
U937 cells were treated (a) for 4 h with combination of cytarabine (50 nM) and MK-8776 (100, 200, 300, 500 nM); (b) for 4 h with cytarabine (0, 5, 10 nM) in the absence or presence of 100; (c) for 24 h with diluent (0.2% DSMO), 50 nM cytarabine, 100 or 300 nM to test the effect of MK-8776 on cytarabine-induced replication checkpoint activation. HL-60 cells were treated (a) for 24 h with diluent (0.2% DMSO), 300 nM cytarabine, 300 nM MK-8776 or 300 nM cytarabine + 300 nM MK-8776; (b) for 24 h with cytarabine (0, 100, 300 nM) in the presence of MK-8776 at 100, 300 or 1000 nM to test how MK-8776 enhances cytarabine-induced apoptosis in human AML cell lines. In the same experiment, ML-1 cells were also treated for 24 h with cytarabine (50-250 nM) and MK-8776 (0, 25, 50, 100 nM).
Substance Class Chemical
Record UNII
99Y1V29WVE
Record Status Validated (UNII)
Record Version