Vebufloxacin

Base Information

• Chemical Name: Vebufloxacin
• CAS No.: 79644-90-9
• Molecular Formula: C₁₉H₂₂FN₃O₃
• Molecular Weight: 359.4
• Mol file: 79644-90-9.mol

Synonyms:(?à)-9-Fluoro-6,7-dihydro-5-methyl-8-(4-methyl-1-piperazinyl)-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylicacid; Benofloxacin; DM 8966; OPC 19A; OPC 7241; Vebufloxacin

Chemical Property of Vebufloxacin

Chemical Property:

• Vapor Pressure: 2.98E-14mmHg at 25°C
• Boiling Point: 579.1°C at 760 mmHg
• PKA: 5.55±0.40(Predicted)
• Flash Point: 304°C
• PSA: 65.78000
• Density: 1.41g/cm³
• LogP: 2.10070

Purity/Quality:

95-99% ^*data from raw suppliers

VEBUFLOXACIN 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Vebufloxacin

There total 11 articles about Vebufloxacin 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: 30.0%

1-methyl-piperazine (109-01-3) + 9-fluoro-8-bromo-5-methyl-6,7-dihydro-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid (77483-92-2) → 9-Fluoro-5-methyl-8-(4-methyl-1-piperazinyl)-6,7-dihydro-1-oxo-1H,5H-benzoquinolizine-2-carboxylic acid (79644-90-9)

Guidance literature:

In N,N,N,N,N,N-hexamethylphosphoric triamide; at 160 ℃; for 6h;

DOI:10.1248/cpb.37.2103

Reference yield:

1-methyl-piperazine (109-01-3) + 9-fluoro-8-chloro-5-methyl-6,7-dihydro-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid (76425-54-2) + pyrographite (7440-44-0) → 9-Fluoro-5-methyl-8-(4-methyl-1-piperazinyl)-6,7-dihydro-1-oxo-1H,5H-benzoquinolizine-2-carboxylic acid (79644-90-9)

Guidance literature:

In N,N,N,N,N,N-hexamethylphosphoric triamide; water; ethyl acetate;

Reference yield:

6-fluoro-2-methyl-quinoline (1128-61-6) → 9-Fluoro-5-methyl-8-(4-methyl-1-piperazinyl)-6,7-dihydro-1-oxo-1H,5H-benzoquinolizine-2-carboxylic acid (79644-90-9)

Guidance literature:

Multi-step reaction with 4 steps

1: 87 percent / Br₂, Ag₂SO₄, cc H₂SO₄, / 1 h

2: 68 percent / H₂, / PtO₂, / acetic acid / Ambient temperature

3: 2.) PPA, 3.) cc HCl, / 1.) 150 deg C, 1 h, 2.) 150 deg C, 30 min, 3.) AcOH, H₂O, reflux, 2 h,

4: 30 percent / hexamethylphosphoric acid triamide / 6 h / 160 °C

With hydrogenchloride; sulfuric acid; hydrogen; bromine; silver sulfate; platinum(IV) oxide; In N,N,N,N,N,N-hexamethylphosphoric triamide; acetic acid;

DOI:10.1248/cpb.37.2103

upstream raw materials:

1-methyl-piperazine

9-fluoro-8-bromo-5-methyl-6,7-dihydro-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid

6-fluoro-1,2,3,4-tetrahydro-2-methyl-5-(4-methyl-1-piperazinyl)quinoline

diethyl 2-ethoxymethylenemalonate

Refernces

• 1、 -. "Piperazinylbenzoheterocyclic compounds". . . Retrieved 2008/06/13.