Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate
- CAS No.
- 113028-17-4
- Chemical Name:
- Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate
- Synonyms
- PL-10;Tilorone Impurity 2;PRULIFLOXACIN INTERMEDIATE 2;Prulifloxacin InterMediate PL-1;Prulifloxacin Intermediate PL-10;Ethyl 6-fluoro-1-Methyl-4-oxo-7-(1-piprazinyl)-4H-;Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiaz...;Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-(1,3)-thiazeto(3,2-a);ETHYL 6-FLUORO-1-METHYL-4-OXO-7-(1-PIPRAZINYL)-4H-(1,3)THIAZETO(3,2-A)QUINOLINE-;thyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate
- CBNumber:
- CB0100236
- Molecular Formula:
- C18H20FN3O3S
- Molecular Weight:
- 377.43
- MDL Number:
- MFCD08063938
- MOL File:
- 113028-17-4.mol
Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate Properties
| Melting point | 224 °C |
|---|---|
| Boiling point | 579.1±50.0 °C(Predicted) |
| Density | 1.44±0.1 g/cm3(Predicted) |
| storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
| pka | 8.69±0.10(Predicted) |
| CAS DataBase Reference | 113028-17-4(CAS DataBase Reference) |
Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Matrix Scientific | 094734 | Ethyl 6-fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate | 113028-17-4 | 250.00mg | $492 | 2026-05-18 | Buy |
| Matrix Scientific | 094734 | Ethyl 6-fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate | 113028-17-4 | 1.00g | $1092 | 2026-05-18 | Buy |
| aablocks | AA007RDP | Ethyl 6-Fluoro-1-Methyl-4-Oxo-7-(Piperazin-1-Yl)-1,4-Dihydro-[1,3]Thiazeto[3,2-A]Quinoline-3-Carboxylate 95% | 113028-17-4 | 250mg | $11 | 2026-05-28 | Buy |
| aablocks | AA007RDP | Ethyl 6-Fluoro-1-Methyl-4-Oxo-7-(Piperazin-1-Yl)-1,4-Dihydro-[1,3]Thiazeto[3,2-A]Quinoline-3-Carboxylate 95% | 113028-17-4 | 1g | $18 | 2026-05-28 | Buy |
| Crysdot | CD11349247 | Ethyl 6-fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate 95+% | 113028-17-4 | 1g | $347 | 2026-05-27 | Buy |
Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate Chemical Properties,Uses,Production
Uses
Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate is an off-white to slightly yellow powder used as an intermediate for prulifloxacin.
Synthesis
110-85-0
113046-72-3
113028-17-4
The general procedure for the synthesis of ethyl 6-fluoro-7-piperazine-1-methyl-4-oxo-1,4-dihydro-[1,3]thiazepine[3,2-a]quinoline-3-carboxylate from ethyl 6,7-difluoro-1-methyl-4-oxo-1,4-dihydro-[1,3]thiazepine[3,2-a]quinoline-3-carboxylate and piperazine was carried out as follows: 50 g of ethyl 6,7-difluoro-1-methyl-4 -oxo-4H-[1,3]thiazino[3,2-a]quinoline-3-carboxylic acid ethyl ester was dissolved in 5 volumes of DMSO and heated to 60 °C. Subsequently, 40 g of piperazine was added and the reaction was kept stirred at 60°C for 4 hours. After completion of the reaction, the mixture was cooled to room temperature, 5 volumes of acetonitrile was added and stirring was continued at room temperature for 4 hours. The precipitate was collected by filtration and dried to give 52.8 g of ethyl 6-fluoro-7-piperazine-1-methyl-4-oxo-[1,3]thiazolocyclo[3,2-a]quinoline-3-carboxylate in 87% yield. After further purification, the yield of ethyl 6-fluoro-7-piperazine-1-methyl-4-oxo-[1,3]thiazolocyclo[3,2-a]quinoline-3-carboxylate was up to 99%.
References
[1] Patent: CN107383069, 2017, A. Location in patent: Paragraph 0061; 0062
[2] Patent: CN107501298, 2017, A. Location in patent: Paragraph 0055; 0056
[3] Journal of Medicinal Chemistry, 1992, vol. 35, # 25, p. 4727 - 4738
[4] Patent: US4843070, 1989, A
[5] Patent: WO2009/93268, 2009, A1. Location in patent: Page/Page column 15



Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Sphchem Co., Ltd. | 021-56491756 13512199871 | 2819742715@qq.com | China | 3994 | 55 |
| Xi'an Manareco New Materials Co., Ltd. | 029-68669089-8816 | market@xarlm.com | China | 479 | 55 |
| Hubei XinyuanShun Chemical Co., Ltd. | 13971561712, 13995564702, 027-50664929 | hbeixys2001@163.com | China | 3110 | 55 |
| Shanghai Meishui Chemical Technology Co., Ltd | 021-60549325 18616193163 | China | 4518 | 56 | |
| HBCChem, Inc. | +1-510-219-6317 | sales@hbcchem.com | United States | 10628 | 60 |
| Chengdu HuaXia Chemical Reagent Co. Ltd | 400-1166-196 13458535857 | cdhxsj@163.com | China | 13323 | 58 |
| Chizhou Kailong Import and Export Trade Co., Ltd. | xg01_gj@163.com | China | 9413 | 50 | |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Wuhai Shuou Technology Co., Ltd. | 17792809151;18872220797 | 2355916837@ycphar.com | China | 6120 | 55 |
| Shandong Ono Chemical Co., Ltd. | 0539-6362799 20) | China | 9998 | 58 |
View Lastest Price from Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate manufacturers
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2019-07-06 | Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate
113028-17-4
|
$200.00 | 100G | 99% | 10KG,20KG,50KG | Career Henan Chemical Co |
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- Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate
113028-17-4
- $200.00
- 99%
- Career Henan Chemical Co




