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Lonwin Chemical Group Limited

Lonwin Industry group limited as a professional manufactor & exporter of chemical materials ,we totally haver more than 230 stuffs, we have been on this line for more than 9 years. Our chemical materials are exported to lot of countries and

Low price with good quality Gatifloxacin Carboxyclic Acid

Cas:112811-72-0

Min.Order:100 Kilogram

FOB Price: $100.0 / 150.0

Type:Other

inquiry

Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance White or almost white crystalline powder Complies Assay &ge

High purity 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid CAS:112811-72-0

Cas:112811-72-0

Min.Order:1 Gram

FOB Price: $100.0 / 500.0

Type:Manufacturers

inquiry

Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

Jinlan Pharm-Drugs Technology Co.,Limited (with its export company Hangzhou Royall Import & Export Co.,Ltd.)is located in Hangzhou, Zhejiang Province. Neighboring Ningbo port, Shanghai port, Hangzhou Xiaoshan Int’l Airport and Shanghai Pu

8-methoxy-1-cyclopropyl-6 7-difluoro-1 4-dihydro-4-oxo-3-quinolinecarboxylic acid CAS 112811-72-0

Cas:112811-72-0

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Unique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Almost white to slightly yellow powder Storage:Cool dry place Package:1kg/foill bag;25kg/drum

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Anhui Dexinjia Biopharm Co., Ltd

As a leading and professional manufacturer of APIs and API intermediates in China,Anhui Dexinjia Biopharm Co., Ltd founded in 2006, Except for the R&D center, our company has built a close cooperation relation with Chinese Academy of Sciences,

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Cas:112811-72-0

Min.Order:1 Gram

Negotiable

Type:Manufacturers

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Cas:112811-72-0

Min.Order:1 Kilogram

FOB Price: $5.0

Type:Manufacturers

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price in China. If you are looking for the product’s supplier in China, DayangChem is your best choice. As a leading manufacturer and supplier of chemicals in China, Day

Gatifloxacin acid in stock

Cas:112811-72-0

Min.Order:1 Kilogram

FOB Price: $4.0

Type:Lab/Research institutions

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Cas:112811-72-0

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hubei DiBo chemical co., LTD

Name:1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid CAS NO: 112811-72-0 Grade:Medical scientific research and export Molecular formula:C14H11F2NO4 Molecular weight:295.2382 Product Quality 12 years of chemi

Leader Biochemical Group

About Product Technical Details

Henan Tianfu Chemical Co., Ltd.

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid Basic information Product Name: 1-Cyclopr

112811-72-0

Cas:112811-72-0

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

Gatifloxacin acid in stock

Cas:112811-72-0

Min.Order:1 Gram

FOB Price: $1.0 / 99.0

Type:Trading Company

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Pharmaceutical Grade CAS 112811-72-0 with competitive price

Cas:112811-72-0

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Hubei Langyou International Trading Co., Ltd

Advantages: Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best service is

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid 112811-72-0

Cas:112811-72-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

Qingdao Beluga Import and Export Co., LTD

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid CAS:112811-72-0 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of che

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid CAS:112811-72-0

Cas:112811-72-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Cas:112811-72-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie

1-Cyclopropyl-6,7-difluoro-1, 4-dihydro-8-methoxy-4-oxo-3 -quinolinecarboxylic acid CAS 112811-72-0

Cas:112811-72-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Cas:112811-72-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Triumph International Development Limilted

Appearance:white powder/crystal Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:Common products:Sea/Ai

112811-72-0

Cas:112811-72-0

Min.Order:100 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Fonlynn Health Technology Co., Ltd.

Packing: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:White or almost white crystalline powder / See

Wuhan Zenuo Biological Medicine Technology Co Ltd

Product Name: 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid Synonyms: 3-QUINOLINECARBOXYLIC ACID, 1-CYCLOPROPYL-6,7-DIFLUORO-1,4-DIHYDRO-8-METHOXY-4-OXO-;1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3

Moxifloxacin intermediate 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Cas:112811-72-0

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

GATIFLOXACIN Q-ACID

Cas:112811-72-0

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

GATIFLOXACIN Q-ACID

Cas:112811-72-0

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to provide excellence

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Cas:112811-72-0

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

ethyl 8-methoxy-1-cyclopropyl-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylate
112811-71-9

ethyl 8-methoxy-1-cyclopropyl-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylate

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
With hydrogenchloride In methanol; water at 65℃; for 15h; Solvent; Temperature;96.83%
With sulfuric acid; acetic acid In water for 2h; Reflux;95.92%
With hydrogenchloride for 3h; Heating;90%
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinoline carboxylic acid
154093-72-8

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinoline carboxylic acid

dimethyl sulfate
77-78-1

dimethyl sulfate

A

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid methyl ester
141290-02-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid methyl ester

B

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
With potassium chloride In acetone Product distribution / selectivity; Heating / reflux;
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid methyl ester
141290-02-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid methyl ester

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
With water; potassium carbonate for 0.5h; Product distribution / selectivity; Heating / reflux;
ethyl 3-(cyclopropylamino)-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate
112811-70-8

ethyl 3-(cyclopropylamino)-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
With sodium fluoride In N,N-dimethyl-formamide
Multi-step reaction with 2 steps
1: sodiumfluoride / N,N-dimethyl-formamide / 5 h
2: sulfuric acid; water / acetic acid / 1 h
View Scheme
2,4,5-trifluoro-3-methoxy-benzamide
112811-64-0

2,4,5-trifluoro-3-methoxy-benzamide

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: sulfuric acid / 3.5 h / 100 °C
2: thionyl chloride / 3 h
3: magnesium ethylate / toluene
4: toluene-4-sulfonic acid / water / 9 h
5: acetic anhydride / 11 h
6: ethanol / 2 h / 20 °C
7: sodiumfluoride / N,N-dimethyl-formamide / 5 h
8: sulfuric acid; water / acetic acid / 1 h
View Scheme
3-methoxy-2,4,5-trifluorobenzonitrile
112811-63-9

3-methoxy-2,4,5-trifluorobenzonitrile

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1: sulfuric acid; water / 1 h / 110 °C
2: sulfuric acid / 3.5 h / 100 °C
3: thionyl chloride / 3 h
4: magnesium ethylate / toluene
5: toluene-4-sulfonic acid / water / 9 h
6: acetic anhydride / 11 h
7: ethanol / 2 h / 20 °C
8: sodiumfluoride / N,N-dimethyl-formamide / 5 h
9: sulfuric acid; water / acetic acid / 1 h
View Scheme
diethyl 3-methoxy-2,4,5-trifluorobenzoylmalonate
112811-67-3

diethyl 3-methoxy-2,4,5-trifluorobenzoylmalonate

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: toluene-4-sulfonic acid / water / 9 h
2: acetic anhydride / 11 h
3: ethanol / 2 h / 20 °C
4: sodiumfluoride / N,N-dimethyl-formamide / 5 h
5: sulfuric acid; water / acetic acid / 1 h
View Scheme
1-bromo-2,4,5-trifluoro-3-methoxybenzene
13332-24-6

1-bromo-2,4,5-trifluoro-3-methoxybenzene

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 10 steps
1: 1-methyl-pyrrolidin-2-one / 4.5 h / 140 - 150 °C
2: sulfuric acid; water / 1 h / 110 °C
3: sulfuric acid / 3.5 h / 100 °C
4: thionyl chloride / 3 h
5: magnesium ethylate / toluene
6: toluene-4-sulfonic acid / water / 9 h
7: acetic anhydride / 11 h
8: ethanol / 2 h / 20 °C
9: sodiumfluoride / N,N-dimethyl-formamide / 5 h
10: sulfuric acid; water / acetic acid / 1 h
View Scheme
3-methoxy-2,4,5-trifluorobenzoic acid
112811-65-1

3-methoxy-2,4,5-trifluorobenzoic acid

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: thionyl chloride / 3 h
2: magnesium ethylate / toluene
3: toluene-4-sulfonic acid / water / 9 h
4: acetic anhydride / 11 h
5: ethanol / 2 h / 20 °C
6: sodiumfluoride / N,N-dimethyl-formamide / 5 h
7: sulfuric acid; water / acetic acid / 1 h
View Scheme
2,4,5-trifluoro-3-methoxybenzoyl chloride
112811-66-2

2,4,5-trifluoro-3-methoxybenzoyl chloride

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: magnesium ethylate / toluene
2: toluene-4-sulfonic acid / water / 9 h
3: acetic anhydride / 11 h
4: ethanol / 2 h / 20 °C
5: sodiumfluoride / N,N-dimethyl-formamide / 5 h
6: sulfuric acid; water / acetic acid / 1 h
View Scheme
ethyl 3-methoxy-2,4,5-trifluorobenzoylacetate
112811-68-4

ethyl 3-methoxy-2,4,5-trifluorobenzoylacetate

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: acetic anhydride / 11 h
2: ethanol / 2 h / 20 °C
3: sodiumfluoride / N,N-dimethyl-formamide / 5 h
4: sulfuric acid; water / acetic acid / 1 h
View Scheme
ethyl 3-ethoxy-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate
122375-85-3

ethyl 3-ethoxy-2-(2,4,5-trifluoro-3-methoxybenzoyl)acrylate

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: ethanol / 2 h / 20 °C
2: sodiumfluoride / N,N-dimethyl-formamide / 5 h
3: sulfuric acid; water / acetic acid / 1 h
View Scheme
1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6,7-difluoro-3-(imidazole-1-carbonyl)-8-methoxy-1H-quinolin-4-one
869310-07-6

1-cyclopropyl-6,7-difluoro-3-(imidazole-1-carbonyl)-8-methoxy-1H-quinolin-4-one

Conditions
ConditionsYield
In tetrahydrofuran Heating / reflux;100%
In chloroform Heating / reflux;100%
In tetrahydrofuran Heating / reflux;100%
In tetrahydrofuran Heating / reflux;100%
boric acid
11113-50-1

boric acid

acetic anhydride
108-24-7

acetic anhydride

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid-O3,O4(bis(acyloxy-O)) borate
139693-52-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid-O3,O4(bis(acyloxy-O)) borate

Conditions
ConditionsYield
Stage #1: boric acid; acetic anhydride With potassium hydroxide; zinc(II) chloride at 100℃; for 12h;
Stage #2: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid at 50℃; for 1h; Concentration; Temperature; Reagent/catalyst;
97.4%
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-1,4-dihydro-6,7-difluoro-8-methoxy-4-oxo-quinoline-3-carboxylic acid difluoroborate ester
847233-56-1

1-cyclopropyl-1,4-dihydro-6,7-difluoro-8-methoxy-4-oxo-quinoline-3-carboxylic acid difluoroborate ester

Conditions
ConditionsYield
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid With potassium carbonate In tetrahydrofuran at 20℃; for 0.0833333h;
Stage #2: With boron trifluoride diethyl etherate In tetrahydrofuran at 20 - 66℃; for 6.08333h;
97%
With boron trifluoride diethyl etherate; potassium carbonate In tetrahydrofuran at 20 - 66℃; Inert atmosphere;97%
With BF3OEt In various solvent(s) Cyclization; Heating;83%
With boron trifluoride diethyl etherate In tetrahydrofuran for 36h; Heating / reflux;
Multi-step reaction with 2 steps
1: acetonitrile / 1 h / 70 - 80 °C / Inert atmosphere; Large scale
2: 1 h / 0 - 15 °C / Large scale
View Scheme
boron trifluoride diethyl etherate
109-63-7

boron trifluoride diethyl etherate

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

(1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-(oxo-κO)-3-quinoline-carboxylato-κO3)difluoro-Boron

(1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-(oxo-κO)-3-quinoline-carboxylato-κO3)difluoro-Boron

Conditions
ConditionsYield
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid With potassium carbonate In tetrahydrofuran at 20℃; for 0.0833333h; Inert atmosphere;
Stage #2: boron trifluoride diethyl etherate In tetrahydrofuran at 60℃; for 6h; Temperature; Reagent/catalyst;
97%
2-Amino-2-methyl-1-propanol
124-68-5

2-Amino-2-methyl-1-propanol

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

C18H18F2N2O3

C18H18F2N2O3

Conditions
ConditionsYield
In toluene at 105 - 115℃; Temperature; Solvent; Inert atmosphere; Industrial scale;96.6%
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane
151213-40-0

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane

moxifloxacin
151096-09-2

moxifloxacin

Conditions
ConditionsYield
With [BCl2(4-picoline)][AlCl4]; triethylamine In methanol at 85℃; for 6h; Catalytic behavior; Reagent/catalyst; Solvent; Temperature;96%
In dimethyl sulfoxide at 65 - 70℃; for 6 - 8h;89.7%
With triethylamine In N,N-dimethyl-formamide; acetonitrile at 0 - 78℃; for 11h; Reflux;66%
[R,R]-2,8-diazabicyclo[4.3.0]nonane
151213-42-2

[R,R]-2,8-diazabicyclo[4.3.0]nonane

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

moxifloxacin

moxifloxacin

Conditions
ConditionsYield
With nano iron oxide on ZrO2 coated sulfonic acid In water for 0.416667h; Reflux;96%
at 150℃; Microwave irradiation;83%
triacetoxyborane
4887-24-5

triacetoxyborane

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydro-3-quinoline carboxylic acid-(O3,O4)-bis-(acetate-O)borate

1-cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydro-3-quinoline carboxylic acid-(O3,O4)-bis-(acetate-O)borate

Conditions
ConditionsYield
In water at 0 - 90℃; for 4h;95.3%
3-methylaminopiperidine dihydrochloride

3-methylaminopiperidine dihydrochloride

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-7-(3-methylaminopiperidin-1-yl)-3-quinolinecarboxylic acid

1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-7-(3-methylaminopiperidin-1-yl)-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Stage #1: 3-methylaminopiperidine dihydrochloride; 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid With boron trifluoride-tetrahydrofuran complex; triethylamine In acetonitrile at 20℃; for 26h;
Stage #2: With methanol for 6h; Reflux;
Stage #3: With sodium hydroxide In methanol; water at 20℃; for 16h; pH=8;
92%
With triethylamine In acetonitrile
(+/-)-2-methylpiperazine bis(hydrochloride)
13264-88-5, 66918-24-9, 75336-85-5, 75336-89-9, 93334-99-7

(+/-)-2-methylpiperazine bis(hydrochloride)

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Stage #1: (+/-)-2-methylpiperazine bis(hydrochloride); 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid With boron trifluoride-tetrahydrofuran complex; triethylamine In acetonitrile at 20℃; for 25h;
Stage #2: With methanol for 5h; Reflux;
Stage #3: With sodium hydroxide In methanol; water at 20℃; for 16h; pH=7;
91%
L-Tartaric acid
87-69-4

L-Tartaric acid

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane
151213-40-0

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane

L(+)-moxifloxacin tartrate
1082245-30-4

L(+)-moxifloxacin tartrate

Conditions
ConditionsYield
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid; (1S,6S)-2,8-diazabicyclo[4.3.0]nonane In N,N-dimethyl-formamide at 65 - 70℃; for 6 - 8h;
Stage #2: L-Tartaric acid In N,N-dimethyl-formamide at 25 - 80℃; for 13 - 16h; Product distribution / selectivity;
90.32%
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinoline carboxylic acid
154093-72-8

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinoline carboxylic acid

Conditions
ConditionsYield
With hydrogenchloride; calcium chloride In water; dimethyl sulfoxide at -5 - 25℃; for 3.5h; pH=4;90%
With hydrogen bromide; acetic acid at 100℃; for 24h;
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid With hydrogen bromide In acetic acid at 100℃; for 1h;
Stage #2: With water In acetic acid at 0℃;
With hydrogen bromide; acetic acid at 100℃; for 24h;
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane
151213-40-0

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane

moxifloxacin hydrochloride
186826-86-8

moxifloxacin hydrochloride

Conditions
ConditionsYield
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid; (1S,6S)-2,8-diazabicyclo[4.3.0]nonane With titanium(IV) isopropylate; triethylamine In isopropyl alcohol at 100℃; Inert atmosphere;
Stage #2: With hydrogenchloride In methanol at 20℃; for 1h; pH=1; Solvent; Reagent/catalyst;
90%
Multi-step reaction with 2 steps
1: Alkaline conditions
2: hydrogenchloride
View Scheme
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid; (1S,6S)-2,8-diazabicyclo[4.3.0]nonane With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 20 - 85℃; for 36h; Inert atmosphere;
Stage #2: With hydrogenchloride In water at 15℃; for 1h; pH=1.4 - 1.8; Inert atmosphere;
3.3 g
cycloperhydroisoindole
21850-12-4

cycloperhydroisoindole

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6-fluoro-8-methoxy-7-(octahydro-2H-isoindol-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

1-cyclopropyl-6-fluoro-8-methoxy-7-(octahydro-2H-isoindol-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Conditions
ConditionsYield
With triethylamine In acetonitrile for 24h; Reflux;89%
pyrrolidine
123-75-1

pyrrolidine

Trimethyl borate
121-43-7

Trimethyl borate

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-7-(pyrrolidin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid

1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-7-(pyrrolidin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid

Conditions
ConditionsYield
In ethanol; acetonitrile88.2%
diethyl amine hydrochloride
660-68-4

diethyl amine hydrochloride

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-N,N-diethyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxamide
1028205-74-4

1-cyclopropyl-N,N-diethyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxamide

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 10 - 35℃; Inert atmosphere;87.3%
diphenyldisulfane
882-33-7

diphenyldisulfane

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6,7-difluoro-8-methoxy-3-(phenylthio)quinolin-4(1H)-one

1-cyclopropyl-6,7-difluoro-8-methoxy-3-(phenylthio)quinolin-4(1H)-one

Conditions
ConditionsYield
With palladium diacetate; triphenylphosphine; silver carbonate In dimethyl sulfoxide at 130℃; for 12h; Schlenk technique;87%
Trimethyl borate
121-43-7

Trimethyl borate

(RS)-3-(acetyl-methyl-amino)-pyrrolidine
79286-87-6

(RS)-3-(acetyl-methyl-amino)-pyrrolidine

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-7-[3-(N-acetyl-N-methylamino)pyrrolidino]pyrrolidino-3-quinolinecarboxylic acid

1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-7-[3-(N-acetyl-N-methylamino)pyrrolidino]pyrrolidino-3-quinolinecarboxylic acid

Conditions
ConditionsYield
In ethanol; acetonitrile83.9%
C14H18N2O2S

C14H18N2O2S

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

C28H28FN3O6S

C28H28FN3O6S

Conditions
ConditionsYield
With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 3h;82.3%
(RS)-2-methylpiperazine
109-07-9

(RS)-2-methylpiperazine

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

Conditions
ConditionsYield
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid With 1,1,1,3,3,3-hexamethyl-disilazane In acetonitrile at 76 - 80℃; for 1h; Heating / reflux;
Stage #2: With boron trifluoride diethyl etherate In acetonitrile at 0 - 25℃; for 2h;
Stage #3: (RS)-2-methylpiperazine With triethylamine In acetonitrile at 15 - 25℃; for 3h; pH=~ 9;
81.8%
In dimethyl sulfoxide at 55℃; for 24h;66%
In dimethyl sulfoxide at 60 - 65℃; for 29 - 45h;53.7%
In dimethyl sulfoxide at 20 - 73℃; for 13.9167 - 14.3333h;52%
In dimethyl sulfoxide at 70 - 95℃; for 2h;
C26H26N2

C26H26N2

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

C40H36FN3O4

C40H36FN3O4

Conditions
ConditionsYield
With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 3h;81.8%
C12H20N2O2

C12H20N2O2

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

C26H30FN3O6

C26H30FN3O6

Conditions
ConditionsYield
With potassium tert-butylate In N,N-dimethyl-formamide at 80℃; for 3h;81.5%
C7H9N3O2

C7H9N3O2

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

C21H19FN4O6
1018938-14-1

C21H19FN4O6

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide for 0.0333333h; microwave irradiation;79%
4,4-ethylenedioxy-piperidine
177-11-7

4,4-ethylenedioxy-piperidine

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cylopropyl-7-(1,4-dioxa-8-aza-spiro[4,5]dec-8-yl)-6-fluoro-8-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid
848070-83-7

1-cylopropyl-7-(1,4-dioxa-8-aza-spiro[4,5]dec-8-yl)-6-fluoro-8-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide for 0.0333333h; microwave irradiation;73%
decahydroisoquinoline
2744-08-3, 2744-09-4, 6329-61-9

decahydroisoquinoline

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-cyclopropyl-6-fluoro-8-methoxy-7-(octahydroisoquinolin-2(1H)-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

1-cyclopropyl-6-fluoro-8-methoxy-7-(octahydroisoquinolin-2(1H)-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Conditions
ConditionsYield
With triethylamine In acetonitrile for 24h; Reflux;73%
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane
151213-40-0

(1S,6S)-2,8-diazabicyclo[4.3.0]nonane

1-cyclopropyl-6-fluoro-8-hydroxy-7-((4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
721970-36-1

1-cyclopropyl-6-fluoro-8-hydroxy-7-((4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Conditions
ConditionsYield
Stage #1: 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid With isobutylamine; copper dichloride In methanol; ethylene glycol at 50℃; for 4h; Inert atmosphere;
Stage #2: (1S,6S)-2,8-diazabicyclo[4.3.0]nonane In methanol; ethylene glycol for 5h; Reflux;
Stage #3: With sodium hydroxide In methanol; water; ethylene glycol for 1h; Reflux;
72.1%
Thiomorpholin
123-90-0

Thiomorpholin

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

1-Cyclopropyl-6-fluoro-8-methoxy-7-thiomorpholino-1,4-dihydro-4-oxoquinoline-3-carboxylic acid
114213-99-9

1-Cyclopropyl-6-fluoro-8-methoxy-7-thiomorpholino-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide for 0.0333333h; microwave irradiation;70%
N,N-diethylpiperidine-3-carboxamide
3367-95-1

N,N-diethylpiperidine-3-carboxamide

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid
112811-72-0

1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

C24H30FN3O5
1018937-94-4

C24H30FN3O5

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide for 0.0333333h; microwave irradiation;70%
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