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SICHUAN TONGSHENG AMINOACID CO.LTD

Sichuan Tongsheng is the most strongest manufacturer and exporter of amino acids and their derivatives in China, we have the best quality and price. Guarantee high quality, competive price and reliable service. We fully compliance with ISO9001:2008,

D-Pyroglutamic acid

Cas:4042-36-8

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Chengdu Baishixing Science and Technology Industry Co., Ltd.

D-Pyroglutamic acid

D-Pyroglutamic acid

Cas:4042-36-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

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

D-Pyroglutamic acid Manufacturer/High quality/Best price/In stock

Cas:4042-36-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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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 D-Pyroglutamic Acid supplier in China

Cas:4042-36-8

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Unique advantages for D-Pyroglutamic Acid Cas 4042-36-8 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Powder Storage:0-5°C Package:1kg/foil bag, 25kg/drum or as you require

High purity D-Pyroglutamic Acid Cas 4042-36-8 supplied by specialized factory

Cas:4042-36-8

Min.Order:1 Kilogram

FOB Price: $80.0 / 300.0

Type:Trading Company

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 D-Pyroglutamic Acid

Cas:4042-36-8

Min.Order:1

Negotiable

Type:Other

inquiry

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

We can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need C

D-Pyroglutamic Acid manufacturer with low price

Cas:4042-36-8

Min.Order:1 Gram

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% D-Pyroglutamic acid 4042-36-8 GMP Manufacturer

Cas:4042-36-8

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

D-Pyroglutamic acid

Cas:4042-36-8

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hubei DiBo chemical co., LTD

Name:D-Pyroglutamic acid CAS NO: 4042-36-8 Grade:Medical scientific research and export Molecular formula:C5H7NO3 Molecular weight:129.11 Product Quality 12 years of chemical raw materials Mature operation of the industry System stability

D-Pyroglutamic acid/ CAS:4042-36-8/D-Pyroglutamic acid raw material/ high-quality

Cas:4042-36-8

Min.Order:25 Kilogram

FOB Price: $2.0 / 3.0

Type:Other

inquiry

Henan Tianfu Chemical Co., Ltd.

Product Name: D-Pyroglutamic acid Synonyms: (R)-5-PYRROLIDONE-2-CARBOXYLIC ACID;(R)-(+)-5-OXO-2-PYRROLIDINECARBOXYLIC ACID;(R)-5-OXO-2-PYRROLIDINECARBOXYLIC ACID;(R)-5-OXOPYRROLIDINE-2-CARBOXY

D-Pyroglutamic acid 4042-36-8

Cas:4042-36-8

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

4,4'-Dimethoxytrityl chloride CAS 4042-36-8

Cas:4042-36-8

Min.Order:1 Kilogram

FOB Price: $9.0 / 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 4042-36-8 with competitive price

Cas:4042-36-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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

Hot Sell Factory Supply Raw Material CAS 4042-36-8 D-Pyroglutamic acid

Cas:4042-36-8

Min.Order:10 Kilogram

Negotiable

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

D-Pyroglutamic acid 4042-36-8

Cas:4042-36-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

Qingdao Beluga Import and Export Co., LTD

D-Pyroglutamic acid CAS:4042-36-8 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 interm

D-Pyroglutamic acid CAS:4042-36-8

Cas:4042-36-8

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

D-Pyroglutamic acid

Cas:4042-36-8

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.:4042-36-8

Cas:4042-36-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Mojin Biotechnology Co.,Ltd

Hebei Mojin Biotechnology Co., Ltd, Our company is a professional chemical raw materials and chemical reagents research and development production enterprises. We have several production line,So we can control the lowest price. We also have several

D-Pyroglutamic acid cas:4042-36-8

Cas:4042-36-8

Min.Order:25 Gram

FOB Price: $90.0 / 100.0

Type:Trading Company

inquiry

Leader Biochemical Group

PRODUCT DETAILS

China Largest Manufacturer factory sales D-Pyroglutamic Acid CAS 4042-36-8

Cas:4042-36-8

Min.Order:500 Kilogram

FOB Price: $1.0 / 2.0

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

D-Pyroglutamic acid

Cas:4042-36-8

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

D-PYROGLUTAMIC ACID

Cas:4042-36-8

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

D-Pyroglutamic acid ; H-D-Pyr-OH ; D-2-Pyrrolidone-5-carboxylic acid

Cas:4042-36-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

D-Pyroglutamic acid

Cas:4042-36-8

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Massive Chemical Technology Co., Ltd.

Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and

D-Pyroglutamic acid

Cas:4042-36-8

Min.Order:1 Gram

FOB Price: $1.0

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 D-Pyroglutamic Acid

Cas:4042-36-8

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

High purity D-PYROGLUTAMIC ACID 4042-36-8in stock immediately delivery good supplierAppearance:Powder Storage:Dry and ventilated Package:according to customers' requirements Application:APIs Transportation:By air(EMS or EUB or FedEx or TNT ect...) o

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

D-Pyroglutamic acid

Cas:4042-36-8

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: D-Pyroglutamic Acid CAS No.: 4042-36-8 Molecule Formula:C5H7NO3 Molecule Weight:129.11 Purity: 99.0% Package: 25kg/drum Description:White crystalline powder Manufacture Standards:Enterprise Standard TESTING ITEMS

Lower Price D-Pyroglutamic Acid on stock

Cas:4042-36-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

(R)-5-hydroxymethylpyrrolidin-2-one
66673-40-3

(R)-5-hydroxymethylpyrrolidin-2-one

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
With oxygen; sodium hydrogencarbonate; platinum In water for 4h; Ambient temperature;95%
tert-butyl (4R,4'R,5'S)-4-amino-5-(3',4'-dimethyl-2'-oxo-5'-phenyl-1'-imidazolydinyl)-5-oxopentanoate
307304-62-7

tert-butyl (4R,4'R,5'S)-4-amino-5-(3',4'-dimethyl-2'-oxo-5'-phenyl-1'-imidazolydinyl)-5-oxopentanoate

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
With water In 1,4-dioxane for 12h; Hydrolysis; cyclization; Heating;45%
D-Glutamic acid
6893-26-1

D-Glutamic acid

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
With water for 63h; Heating;
In water for 72h; Heating;
With D-glutamate cyclase from mouse In methanol at 37℃; for 1h; pH=8; Kinetics; Enzymatic reaction;
With sodium hydroxide In ethanol; water at 20℃; for 48h;
With DL-dithiothreitol; D-glutamate cyclase; manganese(ll) chloride In aq. buffer at 37℃; for 1h; pH=8; Kinetics; Enzymatic reaction;
L-Pyroglutamic acid
98-79-3

L-Pyroglutamic acid

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
In water at 140℃; Rate constant; pH 8.0;
dextrorotatory pyroglutamamide

dextrorotatory pyroglutamamide

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
With barium dihydroxide; water
inactive form

inactive form

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
With Quinine
ethyl (R)-2-pyrrolidone-5-carboxylate
68766-96-1

ethyl (R)-2-pyrrolidone-5-carboxylate

A

ethanol
64-17-5

ethanol

B

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
With 2-(di(2-hydroxyethyl)amino)ethanesulfonic acid; lipase from Bacillus thermocatenulanatus In water at 40℃; pH=7.20; Enzyme kinetics;
methyl (2R)-pyroglutamate
64700-65-8

methyl (2R)-pyroglutamate

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 78 percent / NaBH4 / ethanol / 2 h / Ambient temperature
2: 95 percent / NaHCO3, O2 / Pt / H2O / 4 h / Ambient temperature
View Scheme
Pyroglutamic acid
149-87-1

Pyroglutamic acid

A

L-Pyroglutamic acid
98-79-3

L-Pyroglutamic acid

B

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

Conditions
ConditionsYield
With Ν,Ν-dimethyldehydroabietylamine In chloroform-d1 at 27℃; Resolution of racemate;
ethanol
64-17-5

ethanol

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

ethyl (R)-2-pyrrolidone-5-carboxylate
68766-96-1

ethyl (R)-2-pyrrolidone-5-carboxylate

Conditions
ConditionsYield
With toluene-4-sulfonic acid at 20℃;100%
With thionyl chloride at 80℃; for 1.5h;94%
sulfuric acid Reflux;
acetic acid tert-butyl ester
540-88-5

acetic acid tert-butyl ester

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

tert-butyl (R)-5-oxopyrrolidine-2-carboxylate
205524-46-5

tert-butyl (R)-5-oxopyrrolidine-2-carboxylate

Conditions
ConditionsYield
With perchloric acid In water100%
With perchloric acid In water at 20℃; for 24h; Inert atmosphere;100%
(R)-4-(3,5-dimethylisoxazol-4-yl)-N1-(1-(methylsulfonyl)pyrrolidin-3-yl)benzene-1,2-diamine

(R)-4-(3,5-dimethylisoxazol-4-yl)-N1-(1-(methylsulfonyl)pyrrolidin-3-yl)benzene-1,2-diamine

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(R)-N-(5-(3,5-dimethylisoxazol-4-yl)-2-(((R)-1-(methylsulfonyl)pyrrolidin-3-yl)amino)phenyl)-5-oxopyrrolidine-2-carboxamide

(R)-N-(5-(3,5-dimethylisoxazol-4-yl)-2-(((R)-1-(methylsulfonyl)pyrrolidin-3-yl)amino)phenyl)-5-oxopyrrolidine-2-carboxamide

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 20℃; for 18h;100%
p-toluenesulfonyl chloride
98-59-9

p-toluenesulfonyl chloride

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

<(2R)-5-oxopyrrolidin-2-yl>methyl 4-methylbenzenesulfonate
128899-31-0

<(2R)-5-oxopyrrolidin-2-yl>methyl 4-methylbenzenesulfonate

Conditions
ConditionsYield
Stage #1: D-pyrrolidone-5-carboxylic acid With thionyl chloride In methanol at 20℃; for 4h;
Stage #2: With sodium tetrahydroborate In ethanol at 20℃; for 15h;
Stage #3: p-toluenesulfonyl chloride With dmap; triethylamine In dichloromethane at 20℃; for 16h;
100%
methanol
67-56-1

methanol

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

methyl (2R)-pyroglutamate
64700-65-8

methyl (2R)-pyroglutamate

Conditions
ConditionsYield
With thionyl chloride for 12h;98%
With thionyl chloride 1.) 0 deg C, 30 min, 2.) room temp., 3 h;95%
With sulfuric acid at 20℃; for 24h;95%
2-(2-Amino-ethoxymethyl)-4-(2-chloro-phenyl)-6-methyl-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-methyl ester
113994-41-5

2-(2-Amino-ethoxymethyl)-4-(2-chloro-phenyl)-6-methyl-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-methyl ester

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

amlodipine (R)-(+)-pyroglutamate

amlodipine (R)-(+)-pyroglutamate

Conditions
ConditionsYield
95.1%
1-(2-tert-butylphenyl)piperazine dihydrochloride

1-(2-tert-butylphenyl)piperazine dihydrochloride

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(5R)-5-{[4-(2-tert-Butylphenyl)piperazin-1-yl]carbonyl}pyrrolidin-2-one
1252657-17-2

(5R)-5-{[4-(2-tert-Butylphenyl)piperazin-1-yl]carbonyl}pyrrolidin-2-one

Conditions
ConditionsYield
Stage #1: 1-(2-tert-butylphenyl)piperazine dihydrochloride; D-pyrrolidone-5-carboxylic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine In acetonitrile at 20℃; for 16h;
Stage #2: With sodium hydrogencarbonate In water; ethyl acetate
94%
C12H11Cl2N3O

C12H11Cl2N3O

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(R,E)-N-(4-(6,7-dichloro-4-oxoquinazolin-3(4H)-yl)but-2-en-1-yl)-5-oxopyrrolidine-2-carboxamide

(R,E)-N-(4-(6,7-dichloro-4-oxoquinazolin-3(4H)-yl)but-2-en-1-yl)-5-oxopyrrolidine-2-carboxamide

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 0 - 20℃; for 2h;90%
(S)-benzyl 2-amino-3-(4-methoxyphenyl)propanoate
55456-41-2

(S)-benzyl 2-amino-3-(4-methoxyphenyl)propanoate

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(S)-benzyl 3-(4-methoxyphenyl)-2-((R)-5-oxopyrrolidine-2-carboxamido)propanoate

(S)-benzyl 3-(4-methoxyphenyl)-2-((R)-5-oxopyrrolidine-2-carboxamido)propanoate

Conditions
ConditionsYield
Stage #1: (S)-benzyl 2-amino-3-(4-methoxyphenyl)propanoate With benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate In N,N-dimethyl-formamide at 0℃; for 0.0833333h;
Stage #2: D-pyrrolidone-5-carboxylic acid With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 0.5h;
89%
C27H37N3O5

C27H37N3O5

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

C27H34N4O5

C27H34N4O5

Conditions
ConditionsYield
Stage #1: C27H37N3O5 With trifluoroacetic acid In dichloromethane at 0 - 20℃;
Stage #2: D-pyrrolidone-5-carboxylic acid With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃;
89%
tert-butyl (3R)-3-amino-1-oxa-8-azaspiro[4.5]decane-8-carboxylate

tert-butyl (3R)-3-amino-1-oxa-8-azaspiro[4.5]decane-8-carboxylate

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

tert-butyl (3R)-3-amino-1-oxa-8-azaspiro[4.5]decane-8-carboxylate (2R)-5-oxopyrrolidine-2-carboxylate

tert-butyl (3R)-3-amino-1-oxa-8-azaspiro[4.5]decane-8-carboxylate (2R)-5-oxopyrrolidine-2-carboxylate

Conditions
ConditionsYield
In ethanol at 63℃;89%
In ethanol at 63℃; Inert atmosphere;89%
In ethanol at 63℃;89%
In ethanol at 65℃;19.2 g
silver(l) oxide
20667-12-3

silver(l) oxide

L-Pyroglutamic acid
98-79-3

L-Pyroglutamic acid

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

[Ag2(R-pyrrld)(S-pyrrld)]

[Ag2(R-pyrrld)(S-pyrrld)]

Conditions
ConditionsYield
In water to suspn. of Ag2O in water was added soln. of ligand in water, stirred for 2 h; filtered off, acetone vapor was diffused, collected, washed with Et2O, dried in vacuo; elem. anal.;86.2%
C16H21F3N2O2S*C2HF3O2

C16H21F3N2O2S*C2HF3O2

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

thioacetic acid S-[(S)-6-[((R)-5-oxo-pyrrolidine-2-carbonyl)-amino]-6-(3-trifluoromethyl-phenylcarbamoyl)-hexyl] ester
1428535-89-0

thioacetic acid S-[(S)-6-[((R)-5-oxo-pyrrolidine-2-carbonyl)-amino]-6-(3-trifluoromethyl-phenylcarbamoyl)-hexyl] ester

Conditions
ConditionsYield
With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane; N,N-dimethyl-formamide at 20℃;84%
2-{(5-methoxy-1H-indole-3yl)-methylene}-N-pentylhydrazine carboxidamide

2-{(5-methoxy-1H-indole-3yl)-methylene}-N-pentylhydrazine carboxidamide

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(x)C5H7NO3*C16H23N5O

(x)C5H7NO3*C16H23N5O

Conditions
ConditionsYield
In methanol at 20℃; for 1h;84%
C16H24N2O2S*C2HF3O2

C16H24N2O2S*C2HF3O2

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

thioacetic acid S-{(S)-6-[((R)-5-oxo-pyrrolidine-2-carbonyl)-amino]-6-m-tolylcarbamoyl-hexyl} ester
1428535-79-8

thioacetic acid S-{(S)-6-[((R)-5-oxo-pyrrolidine-2-carbonyl)-amino]-6-m-tolylcarbamoyl-hexyl} ester

Conditions
ConditionsYield
With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane; N,N-dimethyl-formamide at 20℃;80%
With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane; N,N-dimethyl-formamide at 20℃;
para-difluorobenzene
540-36-3

para-difluorobenzene

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

C10H9F2NO

C10H9F2NO

Conditions
ConditionsYield
With methanesulfonic acid; phosphorus pentoxide; Eaton’s reagent at 50 - 65℃; for 27h; Temperature; Inert atmosphere;78%
D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

methyl (2R)-pyroglutamate
64700-65-8

methyl (2R)-pyroglutamate

Conditions
ConditionsYield
With thionyl chloride In methanol at 20℃; Inert atmosphere;75%
allyl alcohol
107-18-6

allyl alcohol

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

allyl (R)-5-oxopyrrolidine-2-carboxylate

allyl (R)-5-oxopyrrolidine-2-carboxylate

Conditions
ConditionsYield
With toluene-4-sulfonic acid In toluene at 23℃; for 3h; Inert atmosphere;71%
D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(-)-8-(4-phenylphenyl)menthol
322640-14-2

(-)-8-(4-phenylphenyl)menthol

(1R,2S,5R)-2-(2-([1,1'-biphenyl]-4-yl)propan-2-yl)-5-methylcyclohexyl (R)-5-oxopyrrolidine-2-carboxylate

(1R,2S,5R)-2-(2-([1,1'-biphenyl]-4-yl)propan-2-yl)-5-methylcyclohexyl (R)-5-oxopyrrolidine-2-carboxylate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane; N,N-dimethyl-formamide at 0 - 23℃; for 24.5h; Inert atmosphere;69%
(1S,3aR,5aS,6R,11bR,11cS)-14-(cyclopropylmethyl)-2,3,3a,4,5,6,7,11c-octahydro-1H-6,11b-(epiminoethano)-1,5a-methanonaphtho[1,2-e]indol-10-ol

(1S,3aR,5aS,6R,11bR,11cS)-14-(cyclopropylmethyl)-2,3,3a,4,5,6,7,11c-octahydro-1H-6,11b-(epiminoethano)-1,5a-methanonaphtho[1,2-e]indol-10-ol

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(R)-5-((1S,3aR,5aS,6R,11bR,11cS)-14-(cyclopropylmethyl)-10-hydroxy-2,3,3a,4,5,6,7,11c-octahydro-1H-6,11b-(epiminoethano)-1,5a-methanonaphtho[1,2-e]indol-3-carbonyl) pyrrolidin-2-one

(R)-5-((1S,3aR,5aS,6R,11bR,11cS)-14-(cyclopropylmethyl)-10-hydroxy-2,3,3a,4,5,6,7,11c-octahydro-1H-6,11b-(epiminoethano)-1,5a-methanonaphtho[1,2-e]indol-3-carbonyl) pyrrolidin-2-one

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane at 20℃; for 14h;58%
3-hydroxypiperazine
6859-99-0

3-hydroxypiperazine

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(S)-3-hydroxypiperidine D-pyroglutamate

(S)-3-hydroxypiperidine D-pyroglutamate

Conditions
ConditionsYield
In ethanol for 1.5h; Time; Reflux; Large scale;55%
benzylamine
100-46-9

benzylamine

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(R)-5-oxopyrrolidine-2-carboxylic acid benzylamide
178327-71-4

(R)-5-oxopyrrolidine-2-carboxylic acid benzylamide

Conditions
ConditionsYield
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In acetonitrile at 0 - 20℃; for 3h;48%
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In acetonitrile at 20℃; for 3h; Cooling with ice;
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In acetonitrile at 20℃; for 3h; Cooling with ice;
(S)-3-aminomethyl-N6-(5-cyclopropyl-1H-pyrazol-3-yl)-5-fluoro-N2-[1-(4-fluorophenyl)ethyl]pyridine-2,6-diamine
905585-65-1

(S)-3-aminomethyl-N6-(5-cyclopropyl-1H-pyrazol-3-yl)-5-fluoro-N2-[1-(4-fluorophenyl)ethyl]pyridine-2,6-diamine

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(R)-N-((6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-2-((S)-1-(4-fluorophenyl)ethylamino)pyridin-3-yl)methyl)-5-oxo-pyrrolidine-2-carboxamide
905586-73-4

(R)-N-((6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-2-((S)-1-(4-fluorophenyl)ethylamino)pyridin-3-yl)methyl)-5-oxo-pyrrolidine-2-carboxamide

Conditions
ConditionsYield
Stage #1: (S)-3-aminomethyl-N6-(5-cyclopropyl-1H-pyrazol-3-yl)-5-fluoro-N2-[1-(4-fluorophenyl)ethyl]pyridine-2,6-diamine; D-pyrrolidone-5-carboxylic acid With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane; N,N-dimethyl-formamide at 0 - 20℃; for 1h;
Stage #2: With water; sodium hydrogencarbonate In tetrahydrofuran; dichloromethane
43%
(S)-N-cinnamoylserinecyclohexylamide

(S)-N-cinnamoylserinecyclohexylamide

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(S)-N-cinnamoylserine{3-(R)-pyroglutamoyl}cyclohexylamide

(S)-N-cinnamoylserine{3-(R)-pyroglutamoyl}cyclohexylamide

Conditions
ConditionsYield
With oxalyl dichloride; triethylamine In N,N-dimethyl-formamide25%
tert-butyldimethylsilyl chloride
18162-48-6

tert-butyldimethylsilyl chloride

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one
128899-30-9, 100548-49-0, 106191-02-0

(R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one

Conditions
ConditionsYield
Stage #1: D-pyrrolidone-5-carboxylic acid With thionyl chloride In methanol at 0 - 20℃; for 1h;
Stage #2: With sodium tetrahydroborate In ethanol at 0 - 20℃; for 16h;
Stage #3: tert-butyldimethylsilyl chloride With 1H-imidazole In N,N-dimethyl-formamide at 20℃; for 16h;
24%
[3-fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)phenyl]amine hydrochloride

[3-fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)phenyl]amine hydrochloride

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

N-[3-fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)phenyl]-5-oxo-D-prolineamide

N-[3-fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)phenyl]-5-oxo-D-prolineamide

Conditions
ConditionsYield
Stage #1: D-pyrrolidone-5-carboxylic acid With 1-chloro-1-(dimethylamino)-2-methyl-1-propene In tetrahydrofuran at 0℃; for 2h;
Stage #2: [3-fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)phenyl]amine hydrochloride With 4-methyl-morpholine In tetrahydrofuran; DMF (N,N-dimethyl-formamide) at 20℃; for 15h;
Stage #3: With sodium methylate In methanol at 20℃; for 1h;
8%
7-fluoronaphtho[2,1-d]thiazol-2-amine

7-fluoronaphtho[2,1-d]thiazol-2-amine

D-pyrrolidone-5-carboxylic acid
4042-36-8

D-pyrrolidone-5-carboxylic acid

(R)-N-(7-fluoronaphtho[2,1-d]thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide

(R)-N-(7-fluoronaphtho[2,1-d]thiazol-2-yl)-5-oxopyrrolidine-2-carboxamide

Conditions
ConditionsYield
Stage #1: D-pyrrolidone-5-carboxylic acid With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 0 - 20℃; for 0.5h;
Stage #2: 7-fluoronaphtho[2,1-d]thiazol-2-amine In N,N-dimethyl-formamide at 60℃; for 16h;
5%

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