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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate Manufacturer/High quality/Best price/In stock

Cas:64485-82-1

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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

High quality Ethyl 2-(2-Aminothiazol-4-Yl)-2-Hydroxyiminoacetate supplier in China

Cas:64485-82-1

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Kono Chem Co.,Ltd

Superiority pioneerbiotech is a leading manufacturer and supplier of chemicals in China. We develop ,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best q

Ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Gram

FOB Price: $1.0 / 5.0

Type:Other

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Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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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

Factory Supply Ethyl 2-(2-Aminothiazol-4-Yl)-2-Hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1

Negotiable

Type:Other

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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

(Z)-2-(2-Amino-4-thiazolyl)-2-hydroxyiminoacetic acid ethyl ester

Cas:64485-82-1

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

Our company engages in Sodium Tripolyphosphate (STPP) and Sodium Hexametabphosphate (SHMP) production; development of noble metal catalysts, synthesis of electronic chemical materials and general chemicals Imp&Exp trading business. The company

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

Ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Kilogram

FOB Price: $100.0 / 150.0

Type:Trading Company

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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

Factory direct supply CAS 64485-82-1 with best quality

Cas:64485-82-1

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Leader Biochemical Group

About Product Details Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate Basic information

China Biggest factory Manufacturer Supply Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate CAS 64485-82-1

Cas:64485-82-1

Min.Order:1 Kilogram

FOB Price: $3.0 / 10.0

Type:Lab/Research institutions

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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

4-Thiazoleacetic acid,2-amino-a-(hydroxyimino)-, ethyl ester, (aZ)- 64485-82-1

Cas:64485-82-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate CAS:64485-82-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializ

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate CAS:64485-82-1

Cas:64485-82-1

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

4-Thiazoleacetic acid,2-amino-a-(hydroxyimino)-, ethyl ester, (aZ)-

Cas:64485-82-1

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

CAS NO.:64485-82-1

Cas:64485-82-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

Ethyl 2-(2-Aminothiazol-4-Yl)-2-Hydroxyiminoacetate

Cas:64485-82-1

Min.Order:0

Negotiable

Type:Manufacturers

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Triumph International Development Limilted

Triumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis: Trading(Raw Mater

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

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

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

ETHYL 2-(2-AMINOTHIAZOL-4-YL)-2-HYDROXYIMINOACETATE

Cas:64485-82-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality Ethyl 2-(2-Aminothiazol-4-Yl)-2-Hydroxyiminoacetate

Cas:64485-82-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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 prov

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate, 99%

Cas:64485-82-1

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:Off-white or yellowish crystalline powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:10g/bag,or as your request Application:For medicine ,

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Gram

Negotiable

Type:Trading Company

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Kilogram

FOB Price: $132.0 / 156.0

Type:Trading Company

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EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

Ethyl 2-(2-aminothiazole-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h

4-Thiazoleacetic acid,2-amino-a-(hydroxyimino)-, ethyl ester, (aZ)-

Cas:64485-82-1

Min.Order:0

Negotiable

Type:Other

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

Ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Cas:64485-82-1

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

SAGECHEM LIMITED

SAGECHEM is a chemical R&D, manufacturing and distribution company in China since 2009, including pharmaceutical intermediates, agrochemical, dyestuff intermediates, organosilicone, API and etc. We also offer a full range of services in

SAGECHEM/ Ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate /Manufacturer in China

Cas:64485-82-1

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

thiourea
17356-08-0

thiourea

ethyl 4-chloro-2-hydroxyimino-3-oxo-butyrate
66338-95-2

ethyl 4-chloro-2-hydroxyimino-3-oxo-butyrate

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Conditions
ConditionsYield
In ethanol; water at 20℃; for 1h;
In N,N-dimethyl acetamide at 20℃; for 3h;8.9 g
ethyl 2-(hydroxyimino)-3-oxybutyrate
66508-93-8

ethyl 2-(hydroxyimino)-3-oxybutyrate

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: SO2Cl2; glac. AcOH / 1 h / 58 - 60 °C
2: 8.9 g / N,N-dimethyl-acetamide / 3 h / 20 °C
View Scheme
With sulfuryl dichloride; thiourea; 2,3-Dimethylaniline In diethyl ether; ethanol; dichloromethane
ethyl acetoacetate
141-97-9

ethyl acetoacetate

3,7,8,8-tetramethyl-non-6ξ-en-1-yn-3-ol

3,7,8,8-tetramethyl-non-6ξ-en-1-yn-3-ol

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: aq. NaNO2; glac. AcOH / 0.5 h / 10 °C
2: SO2Cl2; glac. AcOH / 1 h / 58 - 60 °C
3: 8.9 g / N,N-dimethyl-acetamide / 3 h / 20 °C
View Scheme
ethyl acetoacetate
141-97-9

ethyl acetoacetate

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium nitrite; acetic acid / water / 3.7 h / 20 °C
2.1: sulfuric acid / water; methanol; ethanol / 15 - 20 °C
2.2: 3407 / 2.5 h / 20 - 28 °C
View Scheme
ethyl 2-(hydroxyimino)-3-oxybutyrate
66508-93-8

ethyl 2-(hydroxyimino)-3-oxybutyrate

thiourea
17356-08-0

thiourea

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

Conditions
ConditionsYield
Stage #1: ethyl 2-(hydroxyimino)-3-oxybutyrate With sulfuric acid In methanol; ethanol; water at 15 - 20℃;
Stage #2: thiourea With tetrabutylammomium bromide; potassium carbonate In methanol at 20 - 28℃; for 2.5h;
trityl chloride
76-83-5

trityl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

ethyl 2-(2-tritylaminothiazol-4-yl)-(Z)-2-(tritylhydroxyimino)acetate
69689-86-7

ethyl 2-(2-tritylaminothiazol-4-yl)-(Z)-2-(tritylhydroxyimino)acetate

Conditions
ConditionsYield
Stage #1: (Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate With triethylamine In acetonitrile at 20 - 25℃; for 0.166667h;
Stage #2: trityl chloride In acetonitrile at 55 - 60℃; for 1h;
99.2%
With triethylamine In N,N-dimethyl-formamide at 50℃;85%
With triethylamine In N,N-dimethyl-formamide at 50℃;85%
sodium hydrogencarbonate
144-55-8

sodium hydrogencarbonate

3-bromopropylamine tert-butylcarbamate
83948-53-2

3-bromopropylamine tert-butylcarbamate

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

ethyl (2Z)-2-(2-aminothiazol-4-yl)-2-(3-N-tert-butoxycarbonylaminopropoxyimino)acetate

ethyl (2Z)-2-(2-aminothiazol-4-yl)-2-(3-N-tert-butoxycarbonylaminopropoxyimino)acetate

Conditions
ConditionsYield
With potassium carbonate In water; ethyl acetate; N,N-dimethyl-formamide96%
With potassium carbonate In water; ethyl acetate; N,N-dimethyl-formamide96%
triphenylmethyl alcohol
76-84-6

triphenylmethyl alcohol

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

ethyl (2-aminothiazol-4-yl)-2-(Z)-(trityloxyimino)acetate
128438-00-6

ethyl (2-aminothiazol-4-yl)-2-(Z)-(trityloxyimino)acetate

Conditions
ConditionsYield
Stage #1: triphenylmethyl alcohol; (Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate With boron trifluoride diethyl etherate; acetic acid In water; ethyl acetate at -5 - 45℃; for 25.5h; Inert atmosphere;
Stage #2: With sodium hydrogencarbonate In water
92%
chloroacetyl chloride
79-04-9

chloroacetyl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

4-<(Z)-1-Carbethoxy-1-hydroxyimino>methyl-2-chloroacetamidothiazole
94418-08-3

4-<(Z)-1-Carbethoxy-1-hydroxyimino>methyl-2-chloroacetamidothiazole

Conditions
ConditionsYield
In N,N-dimethyl acetamide 1) 30 min., 0 deg C, 2) 30 min., room temper.;88%
Cyclopentyl bromide
137-43-9

Cyclopentyl bromide

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

ethyl (Z)-2-(2-aminothiazol-4-yl)-2-(cyclopentyloxyimino)acetate
74439-94-4

ethyl (Z)-2-(2-aminothiazol-4-yl)-2-(cyclopentyloxyimino)acetate

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide at 50℃; for 20h;81%
benzimidazo[2,1-a]benz[de]isoquinoline-7-one-12-carboxylic acyl chloride

benzimidazo[2,1-a]benz[de]isoquinoline-7-one-12-carboxylic acyl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

ethyl (Z)-2-(hydroxyimino)-2-(2-(benzimidazo[2,1-α]benz[de]isoquinoline-7-one-12-carboxamido)thiazol-4-yl)acetate

ethyl (Z)-2-(hydroxyimino)-2-(2-(benzimidazo[2,1-α]benz[de]isoquinoline-7-one-12-carboxamido)thiazol-4-yl)acetate

Conditions
ConditionsYield
In chloroform; N,N-dimethyl-formamide at 20℃; for 0.5h;21%
trityl chloride
76-83-5

trityl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

ethyl (Z)-2-hydroxyimino-2-(2-triphenylmethylaminothiazol-4-yl)acetate
66338-99-6

ethyl (Z)-2-hydroxyimino-2-(2-triphenylmethylaminothiazol-4-yl)acetate

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide for 1h;
With triethylamine In N,N-dimethyl-formamide at 20℃;
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

2-(2-Amino-1,3-thiazol-4-yl)-2-(hydroxyimino)acetic acid
66338-96-3

2-(2-Amino-1,3-thiazol-4-yl)-2-(hydroxyimino)acetic acid

Conditions
ConditionsYield
With sodium hydroxide In ethanol at 45℃; for 0.5h;
With sodium hydroxide In ethanol
With sodium hydroxide In ethanol
N,N-dimethyl acetamide
127-19-5

N,N-dimethyl acetamide

trityl chloride
76-83-5

trityl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(Z)-(2-aminothiazol-4-yl)-2-trityloxyiminoacetic acid N,N-dimethylacetamide solvate

(Z)-(2-aminothiazol-4-yl)-2-trityloxyiminoacetic acid N,N-dimethylacetamide solvate

Conditions
ConditionsYield
Yield given. Multistep reaction;
trityl chloride
76-83-5

trityl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

A

ethyl 2-(2-tritylaminothiazol-4-yl)-(Z)-2-(tritylhydroxyimino)acetate
69689-86-7

ethyl 2-(2-tritylaminothiazol-4-yl)-(Z)-2-(tritylhydroxyimino)acetate

B

ethyl (2-aminothiazol-4-yl)-2-(Z)-(trityloxyimino)acetate
128438-00-6

ethyl (2-aminothiazol-4-yl)-2-(Z)-(trityloxyimino)acetate

Conditions
ConditionsYield
With potassium tert-butylate In tetrahydrofuran 1.) r.t., 2 h, 2.) 40 deg C, 4 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
trityl chloride
76-83-5

trityl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

A

(Z)-2-(2-aminothiazol-4-yl)-2-(triphenylmethoxyimino)acetic acid
128438-01-7

(Z)-2-(2-aminothiazol-4-yl)-2-(triphenylmethoxyimino)acetic acid

B

(Z)-2-(trityloxyimino)-2-(2-tritylamino-4-thiazolyl)acetic acid
68786-47-0

(Z)-2-(trityloxyimino)-2-(2-tritylamino-4-thiazolyl)acetic acid

Conditions
ConditionsYield
With potassium tert-butylate 1.) THF, r.t., 2 h; 40 deg C, 4 h, 2.) EtOH, reflux, 4 h; Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;
With potassium tert-butylate 1.) THF, r.t., 2 h; 40 deg C, 4 h, 2.) EtOH, reflux, 4 h; Yield given. Multistep reaction. Title compound not separated from byproducts;
trityl chloride
76-83-5

trityl chloride

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

ethyl (2-aminothiazol-4-yl)-2-(Z)-(trityloxyimino)acetate
128438-00-6

ethyl (2-aminothiazol-4-yl)-2-(Z)-(trityloxyimino)acetate

Conditions
ConditionsYield
With potassium tert-butylate In tetrahydrofuran
In tetrahydrofuran; chloroform; mineral oil
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

cefdinir
91832-40-5

cefdinir

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 52.2 percent / TEA / CHCl3 / 1.5 h / 20 °C
2: 97.6 percent / aq. NaOH / dioxane / 2 h / 100 - 110 °C
3: 92.4 percent / N,N-dimethylaniline; POCl3 / CH2Cl2 / 1.5 h / -15 - -10 °C
4: TFA; anisole / CH2Cl2 / 0 - 5 °C
5: 2.54 g / aq. HCOOH / 3 h / 20 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

7β-[(Z)-2-(2-amino-4-thiazolyl)-2-(trityloxyamino)acetamido]-3-vinylcephem-4-carboxylic acid
128454-32-0

7β-[(Z)-2-(2-amino-4-thiazolyl)-2-(trityloxyamino)acetamido]-3-vinylcephem-4-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 52.2 percent / TEA / CHCl3 / 1.5 h / 20 °C
2: 97.6 percent / aq. NaOH / dioxane / 2 h / 100 - 110 °C
3: 92.4 percent / N,N-dimethylaniline; POCl3 / CH2Cl2 / 1.5 h / -15 - -10 °C
4: TFA; anisole / CH2Cl2 / 0 - 5 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

sodium 2-(2-tritylaminothiazol-4-yl)-(Z)-2-(tritylhydroxyimino)acetate

sodium 2-(2-tritylaminothiazol-4-yl)-(Z)-2-(tritylhydroxyimino)acetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 52.2 percent / TEA / CHCl3 / 1.5 h / 20 °C
2: 97.6 percent / aq. NaOH / dioxane / 2 h / 100 - 110 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

diphenylmethyl 7β-[2-(2-tritylaminothiazol-4-yl)-(Z)-2-tritylhydroxyimino]-3-vinyl-3-cephem-4-carboxylate
123201-39-8

diphenylmethyl 7β-[2-(2-tritylaminothiazol-4-yl)-(Z)-2-tritylhydroxyimino]-3-vinyl-3-cephem-4-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 52.2 percent / TEA / CHCl3 / 1.5 h / 20 °C
2: 97.6 percent / aq. NaOH / dioxane / 2 h / 100 - 110 °C
3: 92.4 percent / N,N-dimethylaniline; POCl3 / CH2Cl2 / 1.5 h / -15 - -10 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(Z)-2-(2-aminothiazol-4-yl)-2-(triphenylmethoxyimino)acetic acid
128438-01-7

(Z)-2-(2-aminothiazol-4-yl)-2-(triphenylmethoxyimino)acetic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: T-BuOK / tetrahydrofuran
2: KOH / ethanol / Saponification
View Scheme
Multi-step reaction with 2 steps
1.1: boron trifluoride diethyl etherate / acetic acid / ethyl acetate; water / 25.5 h / -5 - 45 °C / Inert atmosphere
2.1: potassium hydroxide; water / ethanol / 20 - 30 °C / Reflux
2.2: pH 4 - 5
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetic acid
189449-52-3

(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: T-BuOK / tetrahydrofuran
2: KOH / ethanol / Saponification
3: 71 percent / N-chlorosuccinimide / dimethylformamide / 20 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

MC-02,479

MC-02,479

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1.1: T-BuOK / tetrahydrofuran
2.1: KOH / ethanol / Saponification
3.1: 71 percent / N-chlorosuccinimide / dimethylformamide / 20 °C
4.1: 65 percent / pyridine; POCl3 / tetrahydrofuran / 0.5 h / cooling
5.1: 95 percent / sodium hydrogen sulfide hydrate / dimethylformamide / 0.25 h / -20 °C
6.1: 26 percent / dimethylformamide / 20 °C
7.1: trifluoroacetic acid / CH2Cl2 / 1.5 h
7.2: formic acid / H2O / 4 h / 20 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(7R)-7-[(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetamido]-3-chloro-3-cephem-4-carboxylate diphenylmethyl ester
189449-54-5

(7R)-7-[(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetamido]-3-chloro-3-cephem-4-carboxylate diphenylmethyl ester

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: T-BuOK / tetrahydrofuran
2: KOH / ethanol / Saponification
3: 71 percent / N-chlorosuccinimide / dimethylformamide / 20 °C
4: 65 percent / pyridine; POCl3 / tetrahydrofuran / 0.5 h / cooling
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(7R)-7-[(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetamido]-3-mercapto-3-cephem-4-carboxylate diphenylmethyl ester
189449-55-6

(7R)-7-[(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetamido]-3-mercapto-3-cephem-4-carboxylate diphenylmethyl ester

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: T-BuOK / tetrahydrofuran
2: KOH / ethanol / Saponification
3: 71 percent / N-chlorosuccinimide / dimethylformamide / 20 °C
4: 65 percent / pyridine; POCl3 / tetrahydrofuran / 0.5 h / cooling
5: 95 percent / sodium hydrogen sulfide hydrate / dimethylformamide / 0.25 h / -20 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(7R)-7-[(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetamido]-3-[3-(N-tert-butoxycarbonylaminoethylthiomethyl)pyrid-4-ylthio]-3-cephem-4-carboxylate diphenylmethyl ester
189449-58-9

(7R)-7-[(Z)-2-(2-amino-5-chlorothiazol-4-yl)-2-(triphenylmethoxyimino)acetamido]-3-[3-(N-tert-butoxycarbonylaminoethylthiomethyl)pyrid-4-ylthio]-3-cephem-4-carboxylate diphenylmethyl ester

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: T-BuOK / tetrahydrofuran
2: KOH / ethanol / Saponification
3: 71 percent / N-chlorosuccinimide / dimethylformamide / 20 °C
4: 65 percent / pyridine; POCl3 / tetrahydrofuran / 0.5 h / cooling
5: 95 percent / sodium hydrogen sulfide hydrate / dimethylformamide / 0.25 h / -20 °C
6: 26 percent / dimethylformamide / 20 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

S-(2-benzothiazolyl) 2-(2-aminothiazol-4-yl)-2(Z)-trityloxyiminothioacetate
143183-03-3

S-(2-benzothiazolyl) 2-(2-aminothiazol-4-yl)-2(Z)-trityloxyiminothioacetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
2: 1.) Ph3P / 1.) CH2Cl2, r.t., 40 min, 2.) r.t., 1.5 h
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-trityloxyimino]-acetylamino}-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid (S)-1-(2,2-dimethyl-propionyloxy)-ethyl ester
152401-10-0

(6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-trityloxyimino]-acetylamino}-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid (S)-1-(2,2-dimethyl-propionyloxy)-ethyl ester

Conditions
ConditionsYield
Multi-step reaction with 3 steps
2: 1.) Ph3P / 1.) CH2Cl2, r.t., 40 min, 2.) r.t., 1.5 h
3: dimethylformamide; propan-1-ol / 2 h / Ambient temperature
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-hydroxyimino]-acetylamino}-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid (S)-1-(2,2-dimethyl-propionyloxy)-ethyl ester; compound with toluene-4-sulfonic acid

(6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-hydroxyimino]-acetylamino}-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid (S)-1-(2,2-dimethyl-propionyloxy)-ethyl ester; compound with toluene-4-sulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
2: 1.) Ph3P / 1.) CH2Cl2, r.t., 40 min, 2.) r.t., 1.5 h
3: dimethylformamide; propan-1-ol / 2 h / Ambient temperature
4: 86 percent / propan-1-ol / 1.5 h / 80 °C
View Scheme
(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
64485-82-1

(Z)-ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate

(Z)-2-(2-aminothiazol-4-yl)-2-(cyclopentyloxyimino)acetic acid
74439-96-6

(Z)-2-(2-aminothiazol-4-yl)-2-(cyclopentyloxyimino)acetic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 81 percent / potassium carbonate / dimethylsulfoxide / 20 h / 50 °C
2: 80 percent / aq. NaOH / H2O; ethanol / 16 h / Ambient temperature
View Scheme

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