ChemicalBook >> CAS DataBase List >>Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate

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
Last updated:2025-07-24 18:13:44

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
Product number Packaging Price Buy
094734 250.00mg $492 Buy
094734 1.00g $1092 Buy
AA007RDP 250mg $11 Buy
AA007RDP 1g $18 Buy
CD11349247 1g $347 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

Piperazine

110-85-0

Ethyl 6,7-difluoro-1-methyl-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate

113046-72-3

Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate

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

110-85-0
113046-72-3
113028-17-4
Synthesis of Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate from Piperazine and Ethyl 6,7-difluoro-1-methyl-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate
Global( 77)Suppliers
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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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate pictures 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
6-FLUORO-1-METHYL-4-OXO-7-(1-PIPERAZINYL)-4H-(1,3)THIAZETO(3,2-A)QUINOLINE-3-CARBOYLIC ACID ETHYL ESTER 6-FLUORO-1-METHYL-4-OXO-7-(1-PIPRAZINYL)-1H,4H-(1,3)THIAZETO(3,2-A)QUINOLINE-3-CARBOXYLIC ACID, ETHYL ESTER 6-Fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-1H,4H-[1,3]-thiazeto[3,2-a]-3-quinolinecarboxylic acid ethyl ester 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-PIPERAZINYL)-4H-(1,3)-THIAZETO(3,2-A) QUINOLINE-3-CARBOXYLATE Prulifloxacin Intermediate PL-10 Ethyl 6-fluoro-1-Methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate 6- fluoro -1-Methyl-4- oxo-7-(1-piperazinyl)-4H-(1,3) S,N-containing heterocyclic bi-(3,2-a) quinoline -3- carboxylic acid ethyl ester Ethyl 6-fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carb thyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate Ethyl 6-fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-c ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4h-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate ETHYL 6-FLUORO-1-METHYL-4-OXO-7-(1-PIPRAZINYL)-4H-(1,3)THIAZETO(3,2-A)QUINOLINE- Ethyl 6-Fluoro-1-Methyl-4-Oxo-7-91-Piperazinyl)-4h-(1,3-)-Thiazeto-(3,2-A)Quinoline-3-Carboxylate Ethyl 6-fluoro-1-Methyl-4-oxo-7-(1-piprazinyl)-4H- 1,6-diMethyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazetidino[3,2-a]quinoline-3-carboxylic acid hydrofluoride 6-FLUORO-1-METHYL-4-OXO-7(1-PIPERAZINYL)-4H-(1,3)THIAZETO(3,2-A)QUINOLINE-3-CARBOYLIC ACID ETHYL ESTER PRULIFLOXACIN INTERMEDIATE 2 ethyl 6-fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1H,4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate 5-ethyl-6-fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-1H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylate 1H,4H-[1,3]Thiazeto[3,2-a]quinoline-3-carboxylic acid, 6-fluoro-1-methyl-4-oxo-7-(1-piperazinyl)-, ethyl ester Ethyl 6-fluoro-1-methyl-4-oxo-7-(1-piprazinyl)-4H-[1,3]thiaz... 1,6-dimethyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazetidino[3,2-a]quinoline-3-carboxylic acid Ethyl 6-fluoro-1-methy1-4-0x0-7-(1-piprazinyl)-4H-[1,3]thiazeto[3,2-alquinoline-3-carboxylate Tilorone Impurity 2 PL-10 Prulifloxacin InterMediate PL-1 113028-17-4 C18H20FN3O3S Other Products API intermediates PRULIFLOXACIN