MK-3207

Alias: MK-3207 HCl; MK3207; MK 3207

Cat No.:V4317 Purity: ≥98%

COA Product Data Instructions for use SDS

MK-3207 Chemical Structure CAS No.: 957118-49-9
Product category: CGRP Receptor

This product is for research use only, not for human use. We do not sell to patients.

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Other Forms of MK-3207:

MK-3207 HCl

Official Supplier of:

Top Publications Citing lnvivochem Products

Nature 2021, 597(7874):119-125.

Cell 2020,183:1202-1218.e25.

Science Adv 2022: 8, eabm9427.

Nature 597, 119–125 (2021)

Cell Stem Cell 2020,26(6):845-861.e12.

Science Trans Med 2023,15(701):eadd7872.

STTT 2023,8(1):91.

Cell Reports 2023,42(4):112313

Science Trans Med 2023, 15: eadd7872.

Cancer Cell 2021,39(4):529-547.e7.

Cancer Discov 2022,12(4):1106-1127.

Immunity 2023,56(3):620-634.e11.

J Am Chem Soc 2022,144:21831-21836.

Cell 2020,183:1202-1218.e25.

Science Adv 2022:8,eabm9427.

Nature 2021,597(7874):119-125.

Cell 2020,183:1202-1218.e25.

PNAS Nexus 2022,1(3):pgac063.

ACS Nano 2023,17(10):9110-9125.

Biomaterial 2023 Sep16:302:122333.

Purity & Quality Control Documentation

Current batch：

Purity: ≥98%

COA

MSDS

Instructions

Product Description
Bioactivity & Protocols
Physicochemical Properties
Solubility Data
Calculators
Clinical Trial Information
Biological Data

Product Description

MK-3207 is a novel, potent and orally bioactive CGRP (Calcitonin gene related peptide) receptor antagonist with IC50 and Ki of 0.12 nM and 0.022 nM, it is highly selective versus human AM1, AM2, CTR, and AMY3. MK 3207 demonstrates a markedly greater affinity for the human CGRP receptor, both native and recombinant, as well as the CGRP receptor from rhesus monkeys, with Ki values of 24 pM, ~24 pM, and 22 pM, respectively, in comparison to CGRP receptors from other species, such as canines and rodents (10 nM).

Biological Activity I Assay Protocols (From Reference)

ln Vitro

MK-3207 (0.3, 0.6, 1.1, 2.3, 4.5, 9.0 nM; 30 min) potently inhibits human α-CGRP-stimulated cAMP responses in human CGRP receptor-expressing HEK293 cells[1].

ln Vivo

MK-3207 (0.3, 0.6, 2.1, 9.1, 21.2, 60.6 µg/kg; i.v.; single) has an EC50 and E_max of roughly 0.8 nM and 81%, respectively, in rhesus monkeys that inhibit CIDV[1].
MK-3207 (10 mg/kg; p.o.; single) indicates a 2–3% CSF/plasma ratio[1].

Enzyme Assay

MK-3207 and 40 pM rat amylin are combined in amylin binding assays, and then 25 μg of CTR/RAMP1 or 25 μg of CTR/RAMP3 membranes are added. The mixture is then incubated for three hours at room temperature in binding buffer (10 mM HEPES, 5 mM MgCl2, and 0.2% bovine serum albumin) in a volume of one milliliter. As the radioligand in calcitonin binding assays, 25 μg of CTR membranes are used with 30 pM 125I-human calcitonin. Filtration through GF/B 96-well filter plates blocked with 0.5% polyethylenimine ends the incubation process. Prism is utilized for data analysis, and the equation Ki=IC50/1 + ([ligand]/KD is used to calculate the Ki value. Saturation binding experiments are used to calculate the KD value for each receptor.

Cell Assay

MK-3207 exhibits a rhesus monkey receptor affinity (Ki) of 0.024±0.001 nM; n=14) that is comparable to that of humans, but its affinity for the canine and rat receptors is >400-fold lower, at 10 nM and 10±1.2 nM, respectively. With Ki values of 16,500 nM and 156±17 nM, respectively, MK-3207 exhibits high selectivity against the human AM1 (CLR/RAMP2) and AM2 (CLR/RAMP3) receptors. At 1.9±0.58 μM, MK-3207 exhibits a high level of selectivity against human CTR. With a Ki value of 128±25 nM, MK-3207 demonstrates good selectivity against the AMY3 (CTR/RAMP3) receptor as well. However, its Ki value of 0.75±0.13 nM indicates less selectivity against the AMY1 (CTR/RAMP1) receptor. In human CGRP receptor-expressing HEK293 cells, MK-3207 potently inhibits human α-CGRP-stimulated cAMP responses (IC50 value: 0.12±0.02 nM). MK-3207 exhibits a pIC50 of 7.31±0.09, indicating a significantly lower potency for the rat CGRP receptor.

Animal Protocol

Dissolved in DMSO; 123.1 μg/kg; i.v.

Adult rhesus monkeys (either sex) with capsaicin-induced dermal vasodilation

References

[1]. Pharmacological properties of MK-3207, a potent and orally active calcitonin gene-related peptide receptor antagonist. J Pharmacol Exp Ther. 2010 Apr;333(1):152-60.

These protocols are for reference only. InvivoChem does not independently validate these methods.

Physicochemical Properties

Molecular Formula	C31H29F2N5O3
Molecular Weight	557.590473890305
Exact Mass	557.22
Elemental Analysis	C, 66.78; H, 5.24; F, 6.81; N, 12.56; O, 8.61
CAS #	957118-49-9
Related CAS #	MK-3207 Hydrochloride; 957116-20-0
Appearance	Solid powder
SMILES	C1CCC2(C1)C(=O)N([C@@H](CN2)C3=CC(=CC(=C3)F)F)CC(=O)NC4=CC5=C(C[C@@]6(C5)C7=C(NC6=O)N=CC=C7)C=C4
InChi Key	AZAANWYREOQRFB-SETSBSEESA-N
InChi Code	InChI=1S/C31H29F2N5O3/c32-21-10-19(11-22(33)13-21)25-16-35-31(7-1-2-8-31)29(41)38(25)17-26(39)36-23-6-5-18-14-30(15-20(18)12-23)24-4-3-9-34-27(24)37-28(30)40/h3-6,9-13,25,35H,1-2,7-8,14-17H2,(H,36,39)(H,34,37,40)/t25-,30+/m0/s1
Chemical Name	2-[(8R)-8-(3,5-difluorophenyl)-10-oxo-6,9-diazaspiro[4.5]decan-9-yl]-N-[(2R)-2'-oxospiro[1,3-dihydroindene-2,3'-1H-pyrrolo[2,3-b]pyridine]-5-yl]acetamide
Synonyms	MK-3207 HCl; MK3207; MK 3207
HS Tariff Code	2934.99.9001
Storage	Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Solubility Data

Solubility (In Vitro)

DMSO: ≥ 100 mg/mL

Water: N/A

Ethanol: N/A

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (4.48 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (4.48 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (4.48 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

Solubility in Formulation 4: 1% DMSO +30% polyethylene glycol+1% Tween 80 : 30mg/mL

(Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	1.7934 mL	8.9672 mL	17.9343 mL
	5 mM	0.3587 mL	1.7934 mL	3.5869 mL
	10 mM	0.1793 mL	0.8967 mL	1.7934 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Mass

Concentration

Volume

Molecular Weight*

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Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

Calculate the Mass of a compound required to prepare a solution of known volume and concentration
Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume

See Example

An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?

Enter 350.26 in the Molecular Weight (MW) box
Enter 10 in the Concentration box and choose the correct unit (mM)
Enter 5 in the Volume box and choose the correct unit (mL)
Click the “Calculate” button
The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

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Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:

Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
Enter 25 into the Concentration (End) box and select the correct unit (mM)
Enter 25 into the Volume (End) box and choose the correct unit (mL)
Click the “Calculate” button
The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box

Molecular formula

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g/mol

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Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4 c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:

To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.

Definitions of molecular mass, molecular weight, molar mass and molar weight:

Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.

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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
Click the “Calculate” button
The answer appears in the Volume (to add to vial) box

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)

Dosage mg/kg

Average weight of animals g

Dosing volume per animal μL

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Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)

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Calculation results

Working concentration： mg/mL；

Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O，mix and clarify.

Note： (1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.

Clinical Trial Information

NCT Number	Recruitment	interventions	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT00548353	Completed	Drug: MK3207 Drug: Comparator: Placebo (unspecified)	Migraine Disorders	Merck Sharp & Dohme LLC	August 2007	Phase 1
NCT00712725	Completed	Drug: MK3207- 2.5 mg Drug: MK3207- 5 mg	Migraine	Merck Sharp & Dohme LLC	July 2008	Phase 2

Biological Data

Selected CGRP Receptor Antagonists.ACS Med Chem Lett.2010 Jan 12;1(1):24-9.
Model predictedvs. observed blood flow by MK-3207 plasma concentration at two capsaicin doses (300 and 1000 μg).Br J Clin Pharmacol.2015 May;79(5):831-7.
Simulated mean response of inhibition (%) of capsaicin-induced dermal vasodilatation (CIDV) byMK-3207vs.plasma concentrations ofMK-3207.Br J Clin Pharmacol.2015 May;79(5):831-7.