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Mevociclib (SY-1365)

Alias: SY-1365; SY 1365; SY1365
Cat No.:V4641 Purity: ≥98%
Mevociclib (formerly SY-1365; SY1365) is a novel, potent, highly selective and covalent/irreversible inhibitor ofCDK7 (Cyclin-dependent kinase 7) with anticancer activity.
Mevociclib (SY-1365)
Mevociclib (SY-1365) Chemical Structure CAS No.: 1816989-16-8
Product category: CDK
This product is for research use only, not for human use. We do not sell to patients.
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5mg
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description
Mevociclib (formerly SY-1365; SY1365) is a novel, potent, highly selective and covalent/irreversible inhibitor of CDK7 (Cyclin-dependent kinase 7) with anticancer activity. SY-1365 has the potential to be used therapeutically for solid and hematological tumors. At nanomolar concentrations, SY-1365 inhibited the growth of numerous cancer types' cells in vitro. MCL1 protein levels were reduced by SY-1365 treatment, and it was discovered that cancer cells that expressed less BCL2L1 (BCL-XL) were more susceptible to SY-1365. Acute myeloid leukemia (AML) cell lines showed different transcriptional alterations after treatment with other transcriptional inhibitors. As a single agent, SY-1365 showed significant antitumor effects in several AML xenograft models; when combined with the BCL2 inhibitor venetoclax, SY-1365-induced growth inhibition was amplified. Additionally, xenograft models of ovarian cancer showed antitumor activity, indicating that SY-1365 may be investigated in the clinic for solid and hematologic tumors alike. Our results validate CDK7 targeting as a novel therapeutic strategy for transcriptionally driven cancers.
Mevociclib (SY-1365) is a novel, potent, highly selective, and covalent/irreversible inhibitor of cyclin-dependent kinase 7 (CDK7). It has potential antitumor activity and is being investigated for the treatment of solid and hematological tumors. It binds to and inhibits CDK7-mediated signal transduction pathways, inhibiting the growth of CDK7-overexpressing tumor cells.
Biological Activity I Assay Protocols (From Reference)
Targets
CDK7
Mevociclib targets cyclin-dependent kinase 7 (CDK7), a serine/threonine kinase that plays a crucial role in cell proliferation and transcriptional regulation. It is a covalent/irreversible inhibitor with a Ki of 17.4 nM. It displays high selectivity against all other CDKs, including CDK2, CDK9, and CDK12 (IC₅₀ >2 µM).
ln Vitro
Mevociclib has an IC50 of 20 nM for CDK7/CycH/MAT1 inhibition[2]. Mevociclib, a highly selective covalent CDK7, has no effect on non-growing cells but causes cell cooling in albino cells [2]. Mevociclib exhibits action in colorectal, lung, breast, and ovarian cancer cells; these cells display low nM EC50 and fast cellular fluorescence induction [2].
In vitro, Mevociclib inhibits CDK7 with an IC₅₀ of 20 nM for the CDK7/CycH/MAT1 complex. At nanomolar concentrations, it inhibits the growth of numerous cancer cell types. It reduces MCL1 protein levels and shows enhanced susceptibility in cancer cells expressing less BCL2L1 (BCL-XL). It exhibits activity in colorectal, lung, breast, and ovarian cancer cells.
ln Vivo
In an in vivo TNBC tumor model, mevociclib (20 mg/kg; iv; biw; for 35 days) suppresses growth [2]. A distinct transcriptional signature is induced by mevociclib [2].
In vivo, Mevociclib (20 mg/kg; iv; biw; for 35 days) suppresses tumor growth in a TNBC xenograft model. It shows significant antitumor effects in several AML xenograft models. When combined with the BCL2 inhibitor venetoclax, SY-1365-induced growth inhibition is amplified. Xenograft models of ovarian cancer also show antitumor activity.
Enzyme Assay
The in vitro kinase assay for Mevociclib measures the inhibition of CDK7 kinase activity. Recombinant CDK7/CycH/MAT1 complex is incubated with the compound and a peptide substrate in the presence of ATP. The phosphorylation of the substrate is quantified. IC₅₀ values are calculated from dose-response curves.
Cell Assay
In vitro cell-based assays are performed using various cancer cell lines, including colorectal, lung, breast, ovarian, and AML cells. Cells are treated with Mevociclib, and cell proliferation is measured using assays such as CellTiter-Glo. Apoptosis is assessed by measuring caspase activation or Annexin V staining. The compound's effects on gene expression are analyzed by RNA-seq.
Animal Protocol
Animal/Disease Models: Mouse, HCC70 xenograft model [2]
Doses: 20 mg/kg
Route of Administration: intravenous (iv) (iv)injection, twice a week for 35 days
Experimental Results: Inhibition of tumor volume in vivo.
In vivo animal experiments for Mevociclib have been conducted in mouse xenograft models, including HCC70 (TNBC) and AML models. Animals are administered the compound intravenously at 20 mg/kg twice weekly for 35 days. Tumor volume is measured, and pharmacodynamic markers such as CDK7 target engagement and downstream effects are assessed.
ADME/Pharmacokinetics
Pharmacokinetic properties of Mevociclib have been characterized in preclinical species. It is administered intravenously and achieves sufficient plasma concentrations to exert its pharmacological effects. Detailed PK parameters such as half-life, clearance, and volume of distribution are determined from plasma concentration-time profiles.
Toxicity/Toxicokinetics
Toxicological data for Mevociclib are limited as it is an investigational compound. In standard preclinical safety assessments, it would be evaluated for potential off-target effects and general toxicity. The compound is intended for research use only and not for therapeutic use in humans.
References

[1]. Discovery and characterization of SY-1365, a selective, covalent inhibitor of CDK7. Cancer Res. 2019 May 7.

[2]. SY-1365, a potent and selective CDK7 inhibitor, exhibits promising anti-tumor activity in multiple preclinical models of aggressive solid tumors.

Additional Infomation
Mevociclib (SY-1365) is a selective CDK7 inhibitor. Mevociclib exhibits anti-proliferative and pro-apoptotic effects in solid tumor cell lines. Mevociclib possesses antitumor activity against hematologic malignancies and various aggressive solid tumors. Mevociclib is a selective cyclin-dependent kinase 7 (CDK7) inhibitor with potential antitumor activity. After administration, SY-1365 binds to CDK7 and inhibits its activity, thereby suppressing CDK7-mediated signal transduction pathways. This can inhibit the growth of CDK7-overexpressing tumor cells. CDK7 is a serine/threonine kinase that plays a crucial role in cell proliferation; CDK7 is overexpressed in various tumor cell types.
Mevociclib (SY-1365) is a first-in-class selective CDK7 inhibitor that has been investigated for the treatment of transcriptionally driven cancers. It has demonstrated anti-proliferative and pro-apoptotic effects in solid tumor cell lines and antitumor activity against hematologic malignancies. It has been studied in phase 1 clinical trials but is not approved for clinical use.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C31H35CLN8O2
Molecular Weight
587.115004777908
Exact Mass
586.26
Elemental Analysis
C, 63.42; H, 6.01; Cl, 6.04; N, 19.09; O, 5.45
CAS #
1816989-16-8
Related CAS #
1816989-16-8;Mevociclib mesylate; Mevociclib HCl;
PubChem CID
118426108
Appearance
White to off-white solid powder
LogP
4.2
Hydrogen Bond Donor Count
4
Hydrogen Bond Acceptor Count
7
Rotatable Bond Count
9
Heavy Atom Count
42
Complexity
952
Defined Atom Stereocenter Count
2
SMILES
C[C@@]1(CCC[C@H](C1)NC2=NC=C(C(=N2)C3=CNC4=CC=CC=C43)Cl)NC(=O)C5=NC=C(C=C5)NC(=O)/C=C/CN(C)C
InChi Key
SCJNYBYSTCRPAO-LXBQGUBHSA-N
InChi Code
InChI=1S/C31H35ClN8O2/c1-31(39-29(42)26-13-12-21(17-33-26)36-27(41)11-7-15-40(2)3)14-6-8-20(16-31)37-30-35-19-24(32)28(38-30)23-18-34-25-10-5-4-9-22(23)25/h4-5,7,9-13,17-20,34H,6,8,14-16H2,1-3H3,(H,36,41)(H,39,42)(H,35,37,38)/b11-7+/t20-,31+/m1/s1
Chemical Name
N-[(1S,3R)-3-[[5-chloro-4-(1H-indol-3-yl)pyrimidin-2-yl]amino]-1-methylcyclohexyl]-5-[[(E)-4-(dimethylamino)but-2-enoyl]amino]pyridine-2-carboxamide
Synonyms
SY-1365; SY 1365; SY1365
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: ~125 mg/mL (~212.9 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (3.54 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 20.8 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: ≥ 2.08 mg/mL (3.54 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 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.7032 mL 8.5161 mL 17.0323 mL
5 mM 0.3406 mL 1.7032 mL 3.4065 mL
10 mM 0.1703 mL 0.8516 mL 1.7032 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.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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.

(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.

Biological Data
  • Features of SY-1365 and related molecules. Cancer Res . 2019 Jul 1;79(13):3479-3491.
  • CDK7 target engagement following treatment with inhibitors and changes in CDK7 downstream targets upon SY-1365 treatment. Cancer Res . 2019 Jul 1;79(13):3479-3491.
  • Distribution of growth parameters in response to SY-1365 for 376 human cancer-cell lines across 21 indications. Cancer Res . 2019 Jul 1;79(13):3479-3491.
  • SY-1365 treatment induced apoptosis in AML and TNBC cell lines but not in immortalized normal cell lines. Cancer Res . 2019 Jul 1;79(13):3479-3491.
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