Furo(3,4-b)pyridine-3-carboxylic acid, 5,7-dihydro-4-(2-(difluoromethoxy)phenyl)-2-methyl-5-oxo-, ethyl ester

Base Information

• Chemical Name: Furo(3,4-b)pyridine-3-carboxylic acid, 5,7-dihydro-4-(2-(difluoromethoxy)phenyl)-2-methyl-5-oxo-, ethyl ester
• CAS No.: 126335-08-8
• Molecular Formula: C18H15 F2 N O5
• Molecular Weight: 363.3122
• DSSTox Substance ID: DTXSID40155149
• Mol file: 126335-08-8.mol

Synonyms:BRN 4272548;126335-08-8;Furo(3,4-b)pyridine-3-carboxylic acid, 5,7-dihydro-4-(2-(difluoromethoxy)phenyl)-2-methyl-5-oxo-, ethyl ester;C18H15F2NO5;DTXSID40155149;C18-H15-F2-N-O5;LS-70882

Chemical Property of Furo(3,4-b)pyridine-3-carboxylic acid, 5,7-dihydro-4-(2-(difluoromethoxy)phenyl)-2-methyl-5-oxo-, ethyl ester

Chemical Property:

• Vapor Pressure: 1.53E-10mmHg at 25°C
• Boiling Point: 510.6°C at 760 mmHg
• Flash Point: 262.6°C
• Density: 1.342g/cm³
• XLogP3: 3.5
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 8
• Rotatable Bond Count: 6
• Exact Mass: 363.09182890
• Heavy Atom Count: 26
• Complexity: 532

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCOC(=O)C1=C(N=C2COC(=O)C2=C1C3=CC=CC=C3OC(F)F)C

Technology Process of Furo(3,4-b)pyridine-3-carboxylic acid, 5,7-dihydro-4-(2-(difluoromethoxy)phenyl)-2-methyl-5-oxo-, ethyl ester

There total 2 articles about Furo(3,4-b)pyridine-3-carboxylic acid, 5,7-dihydro-4-(2-(difluoromethoxy)phenyl)-2-methyl-5-oxo-, ethyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 75.0%

CGP 28392 (89289-93-0) → 4-(2-Difluoromethoxy-phenyl)-2-methyl-5-oxo-5,7-dihydro-furo[3,4-b]pyridine-3-carboxylic acid ethyl ester (126335-08-8)

Guidance literature:

With nitric acid; at 70 - 80 ℃; for 1h;

DOI:10.1007/BF00764614

Reference yield:

2,6-dimethyl-3,5-diethoxycarbonyl-4-(-o-difluoromethoxyphenyl)-1,4-dihydropyridine (84761-70-6) → 4-(2-Difluoromethoxy-phenyl)-2-methyl-5-oxo-5,7-dihydro-furo[3,4-b]pyridine-3-carboxylic acid ethyl ester (126335-08-8)

Guidance literature:

Multi-step reaction with 2 steps

1: 33 percent / N-bromosuccinimide (NBS) / CHCl₃ / 0.5 h / Heating

2: 75 percent / 3 N nitric acid / 1 h / 70 - 80 °C

With N-Bromosuccinimide; nitric acid; In chloroform;

DOI:10.1007/BF00764614

upstream raw materials:

CGP 28392

2,6-dimethyl-3,5-diethoxycarbonyl-4-(-o-difluoromethoxyphenyl)-1,4-dihydropyridine

Refernces