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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

Cefpodoxime

Cas:80210-62-4

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 Cefpodoxime supplier in China

Cas:80210-62-4

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

inquiry

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

Factory Price API 99% Cefpodoxime 80210-62-4 GMP Manufacturer

Cas:80210-62-4

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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

Cefpodoxime

Cas:80210-62-4

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. High quality and competitive price: 1) Standard: BP/USP/EP/ enterprise standard 2) All purity ≥99% 3) We are manufacturers and can provide high quality products at factory prices. 2. Fast and safe delivery 1) The package c

Cefpodoxime CAS:80210-62-4

Cas:80210-62-4

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Henan Tianfu Chemical Co., Ltd. is located in Zhengzhou High-tech Development Zone with import and export license. We passed ISO 9001:2008 in 2009, and won "High-tech Enterprise" by provincial government in 2013.The objective of the com

TIANFU-CHEM - Cefpodoxime

Cas:80210-62-4

Min.Order:1 Gram

FOB Price: $1000.0

Type:Lab/Research institutions

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

New production CAS 80210-62-4 with best quality

Cas:80210-62-4

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

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

Cefpodoxime 80210-62-4

Cas:80210-62-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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 present

Cefpodoxime cephalosporins

Cas:80210-62-4

Min.Order:1 Kilogram

FOB Price: $80.0 / 120.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Cefpodoxime CAS:80210-62-4 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediate

Cefpodoxime CAS:80210-62-4

Cas:80210-62-4

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

Cefpodoxime

Cas:80210-62-4

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

Cefpodoxime

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

afine-CEFPODOXIME

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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 Cefpodoxime

Cas:80210-62-4

Min.Order:0 Metric Ton

Negotiable

Type:Other

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

Cefpodoxime

Cas:80210-62-4

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 Cefpodoxime

Cas:80210-62-4

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

CefpodoximeAppearance:white powder Storage:Store in a cool dry place and keep away from strong light Package:according to customers' requirements Application:in research Transportation:By air(EMS or EUB or FedEx or TNT ect...) or by sea(FOB or CIF or

Cefpodoxime

Cas:80210-62-4

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

TaiChem Taizhou Limited

Established in May 2015, TaiChem Ltd. is initially invested by a British research and development company and started by PhDs back from aboard. The company is registered in China Medical City (CMC), Taizhou, Jiangsu Province, and the production site

Cefpodoxime

Cas:80210-62-4

Min.Order:10 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: Cefpodoxime CAS No.: 80210-62-4 Molecule Formula:C15H17N5O6S2 Molecule Weight:427.46 Purity: 99.0% Package: 25kg/drum Description:White or off-white powder Manufacture Standards:Enterprise Standard TESTING ITEMS

Lower Price Cefpodoxime on stock

Cas:80210-62-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

Cefpodoxime

Cas:80210-62-4

Min.Order:1 Milligram

Negotiable

Type:Trading Company

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 api

Cefpodoxime

Cas:80210-62-4

Min.Order:1 Kilogram

FOB Price: $10.0

Type:Lab/Research institutions

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

Cefpodoxime

Cas:80210-62-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

Cefpodoxime

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

Cefpodoxime

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier

Cefpodoxime

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

JINHUA HUAYI CHEMICAL CO., LTD.

Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands

Cefpodoxime

Cas:80210-62-4

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Sinoway Industrial Co., Ltd.

Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment .5) We can do different t

99% up by HPLC Cefpodoxime 80210-62-4

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

Cefpodoxime

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

Cefpodoxime

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

Cefpodoxime

Cas:80210-62-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate
80756-85-0

(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
24701-69-7

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at -5 - 5℃; for 2h;82.86%
With triethylamine In tetrahydrofuran at 0 - 5℃; for 2h;82.86%
Stage #1: (Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate; (6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid With triethylamine In methanol at 8 - 12℃;
Stage #2: With sulfuric acid In methanol; water at 0 - 20℃; pH=2.4 - 2.5; Product distribution / selectivity;
With triethylamine In methanol; water at 15 - 20℃;81 mg
sodium methylate
124-41-4

sodium methylate

2-(2-amino-4-thiazolyl)-2-(Z)-methoxyiminoacetyl chloride
75994-59-1

2-(2-amino-4-thiazolyl)-2-(Z)-methoxyiminoacetyl chloride

7-amino-3-chloromethyl-3-cephem-4-carboxylic acid

7-amino-3-chloromethyl-3-cephem-4-carboxylic acid

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
Stage #1: sodium methylate; 7-amino-3-chloromethyl-3-cephem-4-carboxylic acid With benzyltrihexylammonium chloride; potassium iodide In dimethyl sulfoxide at 15℃; for 8h;
Stage #2: 2-(2-amino-4-thiazolyl)-2-(Z)-methoxyiminoacetyl chloride In dimethyl sulfoxide at 10℃; for 4h; Temperature; Solvent; Reagent/catalyst;
82.2%
(6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 2,2-dimethyl-propionyloxymethyl ester
82618-98-2

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

A

(2R,6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid
126747-46-4

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

B

cefpodoxime
80210-62-4

cefpodoxime

C

(2R,6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid 2,2-dimethyl-propionyloxymethyl ester
126617-55-8

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

Conditions
ConditionsYield
With water In N,N-dimethyl-formamide at 37℃; Rate constant; phosphate buffer, var. pH, add of bovin serum albumin (as protein);
7-Aminocephalosporanic acid
957-68-6

7-Aminocephalosporanic acid

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: methanesulfonic acid / 5 - 12 °C
2: triethylamine / water; methanol / 15 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1: methyl bisulfate / N,N-dimethyl-formamide; methanol / 5 h / 0 - 20 °C
2: triethylamine / tetrahydrofuran / 2 h / 0 - 5 °C
View Scheme
(6R,7R)-7-amino-3-hydroxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
15690-38-7

(6R,7R)-7-amino-3-hydroxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: methanesulfonic acid / acetonitrile / 5 - 40 °C
2: triethylamine / methanol; water / 15 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1: methanesulfonic acid / 5 - 40 °C
2: triethylamine / methanol; water / 15 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1: methanesulfonic acid / 5 - 40 °C
2: triethylamine / methanol; water / 15 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1: methanesulfonic acid / 5 - 40 °C
2: triethylamine / methanol; water / 15 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1.1: boron trifluoride diethyl etherate / acetonitrile / 0.92 h / -20 - 25 °C
1.2: 25 °C
2.1: triethylamine / dichloromethane / 5 - 25 °C / pH 8 - 9
View Scheme
(benzothiazol-2-yl)-2-(2-aminothiazol-4-yl)-Z-2-methoxyimino-thioacetate

(benzothiazol-2-yl)-2-(2-aminothiazol-4-yl)-Z-2-methoxyimino-thioacetate

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
24701-69-7

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
Stage #1: (benzothiazol-2-yl)-2-(2-aminothiazol-4-yl)-Z-2-methoxyimino-thioacetate; (6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid With triethylamine In methanol; water at 15 - 20℃;
Stage #2: With sulfuric acid In methanol; water
2-(2-amino-1,3-thiazol-4-yl)-1-(1,3-benzothiazol-2-ylsulfanyl)-2-(methoxyimino)ethan-1-one
94088-75-2

2-(2-amino-1,3-thiazol-4-yl)-1-(1,3-benzothiazol-2-ylsulfanyl)-2-(methoxyimino)ethan-1-one

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
24701-69-7

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
With triethylamine In dichloromethane at 5 - 25℃; pH=8 - 9; Temperature;
cefotaxime
65872-41-5

cefotaxime

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: N,N-dimethyl acetamide / 0.08 h
1.2: 1.5 h / -11 - 15 °C
2.1: triethylamine / methanol / 0.5 h / -30 - 0 °C
View Scheme
C13H13N3O5S2

C13H13N3O5S2

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
24701-69-7

(6R,7R)-7-amino-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
With triethylamine In methanol at -30 - 0℃; for 0.5h; Solvent;
(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate
80756-85-0

(Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate

(6R,7R)-7-amino-3-hydroxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
15690-38-7

(6R,7R)-7-amino-3-hydroxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid

trimethyl orthoformate
149-73-5

trimethyl orthoformate

cefpodoxime
80210-62-4

cefpodoxime

Conditions
ConditionsYield
Stage #1: trimethyl orthoformate With boron trifluoride diethyl etherate In acetonitrile at -30℃; for 1.58333h;
Stage #2: (6R,7R)-7-amino-3-hydroxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid In acetonitrile at 25℃; for 0.25h;
Stage #3: (Z)-S-benzo[d]thiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate With triethylamine In dichloromethane at 0℃; pH=8 - 9;
1-iodoethyl isopropyl carbonate
84089-73-6, 91508-00-8

1-iodoethyl isopropyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

cefpodoxime proxetil
87239-81-4

cefpodoxime proxetil

Conditions
ConditionsYield
Stage #1: cefpodoxime With 1-butyl-3-methylimidazolium hydroxide; potassium carbonate In N,N-dimethyl-formamide at -18 - -15℃; for 0.333333h; Inert atmosphere;
Stage #2: 1-iodoethyl isopropyl carbonate In N,N-dimethyl-formamide for 0.5h; Reagent/catalyst; Temperature; Solvent; Inert atmosphere;
94.5%
Stage #1: cefpodoxime With sodium acetate In water; N,N-dimethyl-formamide at 25℃; for 0.5h;
Stage #2: 1-iodoethyl isopropyl carbonate In water; N,N-dimethyl-formamide at 3℃; for 2h;
73%
Stage #1: cefpodoxime With N,N,N',N'-tetramethylguanidine In ISOPROPYLAMIDE at -12 - -4℃; for 1h;
Stage #2: 1-iodoethyl isopropyl carbonate In ISOPROPYLAMIDE at -15 - -8℃; for 0.5 - 1.5h; Product distribution / selectivity;
1-iodoethyl isopropyl carbonate
84089-73-6, 91508-00-8

1-iodoethyl isopropyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

A

cefpodoxime proxetil
87239-81-4

cefpodoxime proxetil

B

1-(isopropoxycabonyloxy) ethyl (6R, 7R) [7-[2-(2-AMINOTHIAZOL-4-YL)-2-METHOXYIMINO-] [ACETAMIDO]-3-(METHOXYMETHYL) 3-CEPHEM-4-CARBOXYLATE]

1-(isopropoxycabonyloxy) ethyl (6R, 7R) [7-[2-(2-AMINOTHIAZOL-4-YL)-2-METHOXYIMINO-] [ACETAMIDO]-3-(METHOXYMETHYL) 3-CEPHEM-4-CARBOXYLATE]

Conditions
ConditionsYield
With disodium hydrogenphosphate; sodium carbonate; 1,8-diazabicyclo[5.4.0]undec-7-ene In ISOPROPYLAMIDE at -10 - -5℃; for 2.16667h;A 80.5%
B 0.5%
1-iodoethyl isopropyl carbonate
84089-73-6, 91508-00-8

1-iodoethyl isopropyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

A

(R)-1-(isopropoxycarbonyloxy)ethyl-(+)-(6R,7R)-7-[2-(2-amino-4-thiazolyl)-2-((Z)-methoxyimino)acetamido]-3-methoxymethyl-8-oxo-5-thia-1-azabicyclo[4,2,0]oct-2-en-2-carboxylate
112345-70-7

(R)-1-(isopropoxycarbonyloxy)ethyl-(+)-(6R,7R)-7-[2-(2-amino-4-thiazolyl)-2-((Z)-methoxyimino)acetamido]-3-methoxymethyl-8-oxo-5-thia-1-azabicyclo[4,2,0]oct-2-en-2-carboxylate

B

1-isopropoxycarbonyloxyethyl(6R,7R)-7-[2-(2-aminothiazol-4-yl)-2(Z)-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

1-isopropoxycarbonyloxyethyl(6R,7R)-7-[2-(2-aminothiazol-4-yl)-2(Z)-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

Conditions
ConditionsYield
Stage #1: 1-iodoethyl isopropyl carbonate; cefpodoxime With 1,8-diazabicyclo[5.4.0]undec-7-ene In ISOPROPYLAMIDE; water at -15 - -6℃; for 0.5 - 0.75h;
Stage #2: With hydrogenchloride Product distribution / selectivity;
1-iodoethyl isopropyl carbonate
84089-73-6, 91508-00-8

1-iodoethyl isopropyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

Reaxys ID: 12045429

Reaxys ID: 12045429

Conditions
ConditionsYield
Stage #1: cefpodoxime With 1,8-diazabicyclo[5.4.0]undec-7-ene In ISOPROPYLAMIDE at -10 - -6℃;
Stage #2: 1-iodoethyl isopropyl carbonate In ISOPROPYLAMIDE at -10 - -6℃; for 0.5 - 0.75h;
methanesulfonic acid
75-75-2

methanesulfonic acid

1-iodoethyl isopropyl carbonate
84089-73-6, 91508-00-8

1-iodoethyl isopropyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

A

(R)-1-(isopropoxycarbonyloxy)ethyl-(+)-(6R,7R)-7-[2-(2-amino-4-thiazolyl)-2-((Z)-methoxyimino)acetamido]-3-methoxymethyl-8-oxo-5-thia-1-azabicyclo[4,2,0]oct-2-en-2-carboxylate
112345-70-7

(R)-1-(isopropoxycarbonyloxy)ethyl-(+)-(6R,7R)-7-[2-(2-amino-4-thiazolyl)-2-((Z)-methoxyimino)acetamido]-3-methoxymethyl-8-oxo-5-thia-1-azabicyclo[4,2,0]oct-2-en-2-carboxylate

B

1-isopropoxycarbonyloxyethyl(6R,7R)-7-[2-(2-aminothiazol-4-yl)-2(Z)-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

1-isopropoxycarbonyloxyethyl(6R,7R)-7-[2-(2-aminothiazol-4-yl)-2(Z)-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

Conditions
ConditionsYield
Stage #1: 1-iodoethyl isopropyl carbonate; cefpodoxime With 1,8-diazabicyclo[5.4.0]undec-7-ene In ISOPROPYLAMIDE at -15 - 6℃; for 0.666667h;
Stage #2: With hydrogenchloride
Stage #3: methanesulfonic acid With sodium hydrogencarbonate Product distribution / selectivity; more than 3 stages;
1-iodoethyl methyl carbonate

1-iodoethyl methyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

1-(methoxycarbonyloxy)ethyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

1-(methoxycarbonyloxy)ethyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

Conditions
ConditionsYield
Stage #1: cefpodoxime With 1,8-diazabicyclo[5.4.0]undec-7-ene In N,N-dimethyl acetamide at 20℃; for 0.5h;
Stage #2: 1-iodoethyl methyl carbonate In N,N-dimethyl acetamide; toluene at -20 - -15℃; for 2.5h;
20.5 g
1-iodopropyl isopropyl carbonate

1-iodopropyl isopropyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

1-(isopropoxycarbonyloxy)propyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

1-(isopropoxycarbonyloxy)propyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

Conditions
ConditionsYield
Stage #1: cefpodoxime With 1,8-diazabicyclo[5.4.0]undec-7-ene In N,N-dimethyl acetamide at 20℃; for 0.5h;
Stage #2: 1-iodopropyl isopropyl carbonate In N,N-dimethyl acetamide; toluene at -20 - -15℃; for 2.5h;
52 g
1-iodoethyl propyl carbonate
91507-81-2

1-iodoethyl propyl carbonate

cefpodoxime
80210-62-4

cefpodoxime

1-(propoxycarbonyloxy)ethyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

1-(propoxycarbonyloxy)ethyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

Conditions
ConditionsYield
Stage #1: cefpodoxime With 1,8-diazabicyclo[5.4.0]undec-7-ene In N,N-dimethyl acetamide at 20℃; for 0.5h;
Stage #2: 1-iodoethyl propyl carbonate In N,N-dimethyl acetamide; toluene at -20 - -15℃; for 2.5h;
20.5 g
cefpodoxime
80210-62-4

cefpodoxime

ethyl 1-iodoethylcarbonate
80196-04-9

ethyl 1-iodoethylcarbonate

1-(ethoxycarbonyloxy)ethyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

1-(ethoxycarbonyloxy)ethyl (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetamido]-3-(methoxymethyl)-3-cephem-4-carboxylate

Conditions
ConditionsYield
Stage #1: cefpodoxime With 1,8-diazabicyclo[5.4.0]undec-7-ene In N,N-dimethyl acetamide at 20℃; for 0.5h;
Stage #2: ethyl 1-iodoethylcarbonate In N,N-dimethyl acetamide; toluene at -20 - -15℃; for 2.5h;
20 g

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