Cas no 824-51-1 (6-Methyl-1H-pyrrolo[2,3-b]pyridine)

6-Methyl-1H-pyrrolo[2,3-b]pyridine is a heterocyclic organic compound featuring a fused pyrrole-pyridine structure with a methyl substituent at the 6-position. This scaffold is of significant interest in medicinal chemistry due to its role as a versatile building block for pharmaceutical intermediates and bioactive molecules. Its rigid, planar structure enhances binding affinity in target interactions, making it valuable for drug discovery, particularly in kinase inhibitors and receptor modulators. The methyl group improves lipophilicity and metabolic stability, while the nitrogen-rich core allows for diverse functionalization. High purity grades ensure reproducibility in research and development applications. Suitable for use in cross-coupling reactions and as a precursor in synthesizing complex heterocycles.
6-Methyl-1H-pyrrolo[2,3-b]pyridine structure
824-51-1 structure
Product Name:6-Methyl-1H-pyrrolo[2,3-b]pyridine
CAS No:824-51-1
MF:C8H8N2
MW:132.162521362305
MDL:MFCD06659664
CID:707096
PubChem ID:11457716
Update Time:2025-11-06

6-Methyl-1H-pyrrolo[2,3-b]pyridine Chemical and Physical Properties

Names and Identifiers

    • 6-Methyl-1H-pyrrolo[2,3-b]pyridine
    • 1H-Pyrrolo[2,3-b]pyridine, 6-methyl-
    • 6-Methyl-7-azaindole
    • 6-Methyl-1H-pyrrolo[2,3-b]pyridine (ACI)
    • CS-B0515
    • MFCD06659664
    • 824-51-1
    • 1,7-Diazaindene, 6-methyl-
    • DTXSID80466423
    • SCHEMBL343400
    • AB26035
    • SY023701
    • AKOS006293131
    • J-518904
    • YQDMUZFABFBKJN-UHFFFAOYSA-N
    • 6-Methyl-1H-pyrrolo[2 pound not3-b]pyridine
    • DS-16325
    • MDL: MFCD06659664
    • Inchi: 1S/C8H8N2/c1-6-2-3-7-4-5-9-8(7)10-6/h2-5H,1H3,(H,9,10)
    • InChI Key: YQDMUZFABFBKJN-UHFFFAOYSA-N
    • SMILES: N1C2=C(C=CN2)C=CC=1C

Computed Properties

  • Exact Mass: 132.06900
  • Monoisotopic Mass: 132.068748264g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 1
  • Hydrogen Bond Acceptor Count: 1
  • Heavy Atom Count: 10
  • Rotatable Bond Count: 0
  • Complexity: 124
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 1.7
  • Topological Polar Surface Area: 28.7?2

Experimental Properties

  • Density: 1.17
  • Melting Point: 140 oC
  • Boiling Point: 259.634°C at 760 mmHg
  • Flash Point: 112.803°C
  • Refractive Index: 1.667
  • PSA: 28.68000
  • LogP: 1.87130

6-Methyl-1H-pyrrolo[2,3-b]pyridine Customs Data

  • HS CODE:2933990090
  • Customs Data:

    China Customs Code:

    2933990090

    Overview:

    2933990090. Other heterocyclic compounds containing only nitrogen heteroatoms. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:20.0%

    Declaration elements:

    Product Name, component content, use to, Please indicate the appearance of Urotropine, 6- caprolactam please indicate the appearance, Signing date

    Summary:

    2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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6-Methyl-1H-pyrrolo[2,3-b]pyridine Production Method

Production Method 1

Reaction Conditions
1.1 Reagents: Potassium carbonate Catalysts: Dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium(II) dichloromethane addu… Solvents: 1,4-Dioxane ;  18 h, 120 °C
1.2 Reagents: Sodium hydroxide Solvents: Methanol ;  2 h, rt
Reference
Structure-activity relationships (SAR) and structure-kinetic relationships (SKR) of bicyclic heteroaromatic acetic acids as potent CRTh2 antagonists II: Lead optimization
Alonso, Juan Antonio; et al, Bioorganic & Medicinal Chemistry Letters, 2014, 24(21), 5123-5126

Production Method 2

Reaction Conditions
1.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  40 h, reflux
2.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  8 h, reflux
Reference
Scaffold-hopping strategy: synthesis and biological evaluation of 5,6-fused bicyclic heteroaromatics to identify orally bioavailable anticancer agents
Tung, Yen-Shih; et al, Journal of Medicinal Chemistry, 2011, 54(8), 3076-3080

Production Method 3

Reaction Conditions
1.1 Reagents: m-Chloroperbenzoic acid Solvents: Ethyl acetate ;  rt; 2 h, rt
2.1 Reagents: Benzoyl chloride ,  Hexamethyldisilazane Solvents: Toluene ;  2 h, rt
2.2 Reagents: Sodium hydroxide Solvents: Methanol ,  Water ;  rt; overnight, rt
3.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ,  Water ;  0 °C; 8 h, rt
3.2 Solvents: Water ;  rt
4.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  rt → 80 °C; 48 h, 80 °C
5.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  10 h, rt → reflux
Reference
Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors
Liu, Bin; et al, European Journal of Medicinal Chemistry, 2019, 170, 1-15

Production Method 4

Reaction Conditions
1.1 Reagents: Benzoyl chloride ,  Hexamethyldisilazane Solvents: Toluene ;  2 h, rt
1.2 Reagents: Sodium hydroxide Solvents: Methanol ,  Water ;  rt; overnight, rt
2.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ,  Water ;  0 °C; 8 h, rt
2.2 Solvents: Water ;  rt
3.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  rt → 80 °C; 48 h, 80 °C
4.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  10 h, rt → reflux
Reference
Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors
Liu, Bin; et al, European Journal of Medicinal Chemistry, 2019, 170, 1-15

Production Method 5

Reaction Conditions
1.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  8 h, reflux
Reference
Scaffold-hopping strategy: synthesis and biological evaluation of 5,6-fused bicyclic heteroaromatics to identify orally bioavailable anticancer agents
Tung, Yen-Shih; et al, Journal of Medicinal Chemistry, 2011, 54(8), 3076-3080

Production Method 6

Reaction Conditions
1.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  10 h, rt → reflux
Reference
Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors
Liu, Bin; et al, European Journal of Medicinal Chemistry, 2019, 170, 1-15

Production Method 7

Reaction Conditions
1.1 Reagents: Potassium carbonate Catalysts: [1,1′-Bis(diphenylphosphino)ferrocene]dichloropalladium Solvents: 1,4-Dioxane ;  10 min, 140 °C
Reference
Design and Synthesis of Potent and Selective PIM Kinase Inhibitors by Targeting Unique Structure of ATP-Binding Pocket
Nakano, Hirofumi ; et al, ACS Medicinal Chemistry Letters, 2017, 8(5), 504-509

Production Method 8

Reaction Conditions
Reference
The synthesis of 4-benzylamino-6-methyl-1H-pyrrolo[3,2-c]pyridine and 4-benzylamino-6-methyl-1H-pyrrolo[2,3-b]pyridine
Meade, Eric A.; et al, Journal of Heterocyclic Chemistry, 1996, 33(2), 303-308

Production Method 9

Reaction Conditions
1.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  rt → 80 °C; 48 h, 80 °C
2.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  10 h, rt → reflux
Reference
Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors
Liu, Bin; et al, European Journal of Medicinal Chemistry, 2019, 170, 1-15

Production Method 10

Reaction Conditions
1.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ,  Water ;  0 °C; 8 h, rt
1.2 Solvents: Water ;  rt
2.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  rt → 80 °C; 48 h, 80 °C
3.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  10 h, rt → reflux
Reference
Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors
Liu, Bin; et al, European Journal of Medicinal Chemistry, 2019, 170, 1-15

Production Method 11

Reaction Conditions
1.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ;  0 °C; 8 h, rt
1.2 Solvents: Methanol ;  1 h, reflux
2.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  40 h, reflux
3.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  8 h, reflux
Reference
Scaffold-hopping strategy: synthesis and biological evaluation of 5,6-fused bicyclic heteroaromatics to identify orally bioavailable anticancer agents
Tung, Yen-Shih; et al, Journal of Medicinal Chemistry, 2011, 54(8), 3076-3080

Production Method 12

Reaction Conditions
1.1 Reagents: Sodium hydroxide Solvents: Tetrahydrofuran ,  Water ;  16 h, rt
2.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ;  0 °C; 8 h, rt
2.2 Solvents: Methanol ;  1 h, reflux
3.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  40 h, reflux
4.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  8 h, reflux
Reference
Scaffold-hopping strategy: synthesis and biological evaluation of 5,6-fused bicyclic heteroaromatics to identify orally bioavailable anticancer agents
Tung, Yen-Shih; et al, Journal of Medicinal Chemistry, 2011, 54(8), 3076-3080

Production Method 13

Reaction Conditions
1.1 Reagents: Sodium hydroxide Solvents: Methanol ,  Water ;  rt; overnight, rt
2.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ,  Water ;  0 °C; 8 h, rt
2.2 Solvents: Water ;  rt
3.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  rt → 80 °C; 48 h, 80 °C
4.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  10 h, rt → reflux
Reference
Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors
Liu, Bin; et al, European Journal of Medicinal Chemistry, 2019, 170, 1-15

Production Method 14

Reaction Conditions
1.1 Reagents: Hexamethyldisilazane Solvents: Tetrahydrofuran ;  1 h, rt
2.1 Reagents: Sodium hydroxide Solvents: Tetrahydrofuran ,  Water ;  16 h, rt
3.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ;  0 °C; 8 h, rt
3.2 Solvents: Methanol ;  1 h, reflux
4.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  40 h, reflux
5.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  8 h, reflux
Reference
Scaffold-hopping strategy: synthesis and biological evaluation of 5,6-fused bicyclic heteroaromatics to identify orally bioavailable anticancer agents
Tung, Yen-Shih; et al, Journal of Medicinal Chemistry, 2011, 54(8), 3076-3080

Production Method 15

Reaction Conditions
1.1 Reagents: Hexamethyldisilazane Solvents: Toluene ;  2 h, rt
2.1 Reagents: Sodium hydroxide Solvents: Methanol ,  Water ;  rt; overnight, rt
3.1 Reagents: Sodium hydroxide Catalysts: Tetrabutylammonium hydrogen sulfate Solvents: Dichloromethane ,  Water ;  0 °C; 8 h, rt
3.2 Solvents: Water ;  rt
4.1 Catalysts: Tetrakis(triphenylphosphine)palladium Solvents: Tetrahydrofuran ;  rt → 80 °C; 48 h, 80 °C
5.1 Reagents: Sodium hydroxide Solvents: Ethanol ,  Water ;  10 h, rt → reflux
Reference
Synthesis of novel 7-azaindole derivatives containing pyridin-3-ylmethyl dithiocarbamate moiety as potent PKM2 activators and PKM2 nucleus translocation inhibitors
Liu, Bin; et al, European Journal of Medicinal Chemistry, 2019, 170, 1-15

6-Methyl-1H-pyrrolo[2,3-b]pyridine Raw materials

6-Methyl-1H-pyrrolo[2,3-b]pyridine Preparation Products

Additional information on 6-Methyl-1H-pyrrolo[2,3-b]pyridine

Market Research and Analysis of 6-Methyl-1H-pyrrolo[2,3-b]pyridine (CAS No. 824-51-1) in Chemical-Biological-Medical Fields

The compound 6-Methyl-1H-pyrrolo[2,3-b]pyridine, identified by the CAS number 824-51-1, has garnered significant attention in the chemical-biological-medical (CBM) sectors due to its unique structural properties and potential applications in drug discovery and development. This brief market research analysis aims to provide an overview of the current state of research, market demands, and future prospects for this compound.

Recent studies have highlighted the role of 6-Methyl-1H-pyrrolo[2,3-b]pyridine as a promising scaffold in the design of bioactive molecules. Its structural versatility allows for modifications that can target various biological pathways, making it a valuable asset in both academic research and industrial applications. The compound has been explored in preclinical studies for its potential anti-inflammatory, anticancer, and neuroprotective activities.

Market demand for 6-Methyl-1H-pyrrolo[2,3-b]pyridine is driven by its increasing use as an intermediate in pharmaceutical synthesis and as a tool compound in academic research. Global suppliers are actively catering to this demand by offering high-purity samples for both research and development purposes. Additionally, the growing interest in natural product-inspired drug design has further boosted the compound's market relevance.

To address the rising demand, key players in the CBM industry are investing in scalable synthesis methods to ensure a steady supply of this compound. Collaborative efforts between academic institutions and pharmaceutical companies are also being fostered to accelerate its translation into clinical applications.

In conclusion, 6-Methyl-1H-pyrrolo[2,3-b]pyridine (CAS No. 824-51-1) holds significant promise in advancing therapeutic interventions across multiple disease areas. As research continues to uncover its full potential, the market is expected to witness sustained growth driven by innovation and collaboration within the CBM sectors.

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