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19668-85-0

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19668-85-0 Usage

Uses

3-Methyl-5-isoxazoleacetic acid may be used as a reagent in the solid phase synthesis of von Hippel-Lindau protein (VHL) ligands. It may also be used to prepare (N-(4-chlorophenyl)-α-[[(4-chlorophenyl)amino]methylene]-3-methyl-5-isoxazoleacetamide).

General Description

3-Methyl-5-isoxazoleacetic acid is a substituted isoxazole.

Check Digit Verification of cas no

The CAS Registry Mumber 19668-85-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,6 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19668-85:
(7*1)+(6*9)+(5*6)+(4*6)+(3*8)+(2*8)+(1*5)=160
160 % 10 = 0
So 19668-85-0 is a valid CAS Registry Number.
InChI:InChI=1/C6H7NO3/c1-4-2-5(10-7-4)3-6(8)9/h2H,3H2,1H3,(H,8,9)

19668-85-0 Well-known Company Product Price

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  • (Code)Product description
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  • Detail
  • Aldrich

  • (489689)  3-Methyl-5-isoxazoleaceticacid  98%

  • 19668-85-0

  • 489689-1G

  • 388.44CNY

  • Detail
  • Aldrich

  • (489689)  3-Methyl-5-isoxazoleaceticacid  98%

  • 19668-85-0

  • 489689-5G

  • 1,339.65CNY

  • Detail

19668-85-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(3-methyl-1,2-oxazol-5-yl)acetic acid

1.2 Other means of identification

Product number -
Other names 2-(3-Methylisoxazol-5-yl)acetic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:19668-85-0 SDS

19668-85-0Synthetic route

3,5-dimethyl-1,2-oxazole
300-87-8

3,5-dimethyl-1,2-oxazole

carbon dioxide
124-38-9

carbon dioxide

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

Conditions
ConditionsYield
Stage #1: 3,5-dimethyl-1,2-oxazole With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 1h; Inert atmosphere;
Stage #2: carbon dioxide In tetrahydrofuran; hexane at 20℃; under 760.051 Torr; for 1h;
89%
Stage #1: 3,5-dimethyl-1,2-oxazole With n-butyllithium In tetrahydrofuran at -78 - -55℃; Inert atmosphere;
Stage #2: carbon dioxide In tetrahydrofuran at 25℃; for 1.5h;
46%
Stage #1: 3,5-dimethyl-1,2-oxazole With n-butyllithium In tetrahydrofuran at -78 - 55℃; for 0.5h; Inert atmosphere;
Stage #2: carbon dioxide In tetrahydrofuran at 25℃; for 1.5h;
46%
3,5-dimethyl-1,2-oxazole
300-87-8

3,5-dimethyl-1,2-oxazole

chloroform-carbon tetrachloride

chloroform-carbon tetrachloride

acetylacetone
123-54-6

acetylacetone

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

Conditions
ConditionsYield
With n-butyllithium; hydroxylamine; sodium carbonate In tetrahydrofuran; hexane; chloroform; water; ethyl acetate
(2S,4R)-benzyl 4-hydroxypyrrolidine-2-carboxylate hydrochloride

(2S,4R)-benzyl 4-hydroxypyrrolidine-2-carboxylate hydrochloride

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

(2S,4R)-benzyl 4-hydroxy-1-(2-(3-methylisoxazol-5-yl)acetyl)pyrrolidine-2-carboxylate
1448189-55-6

(2S,4R)-benzyl 4-hydroxy-1-(2-(3-methylisoxazol-5-yl)acetyl)pyrrolidine-2-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 20℃; Cooling with ice;100%
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 for 0.833333h; Cooling;100%
8-isopropyl-2-(3-methanesulfonyl-5-methylaminophenylamino)-5-methyl-7,8-dihydro-5H-pteridin-6-one
1044272-35-6

8-isopropyl-2-(3-methanesulfonyl-5-methylaminophenylamino)-5-methyl-7,8-dihydro-5H-pteridin-6-one

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

C24H29N7O5S
1044270-78-1

C24H29N7O5S

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 48h;99%
ethanol
64-17-5

ethanol

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

ethyl methyl 2-(3-methylisoxazol-5-yl)acetate

ethyl methyl 2-(3-methylisoxazol-5-yl)acetate

Conditions
ConditionsYield
sulfuric acid at 20℃; for 48h;97%
With sulfuric acid In ethanol at 20℃; for 48h;97%
1,1,1-trichloroethanol
115-20-8

1,1,1-trichloroethanol

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

2,2,2-trichloroethyl 2-(3-methylisoxazol-5-yl)acetate

2,2,2-trichloroethyl 2-(3-methylisoxazol-5-yl)acetate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0℃;97%
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0℃; Inert atmosphere;
(2S,4R)-4-(tert-butoxy)-N-(3-chlorobenzyl)pyrrolidine-2-carboxamide
1360616-42-7

(2S,4R)-4-(tert-butoxy)-N-(3-chlorobenzyl)pyrrolidine-2-carboxamide

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

(2S,4R)-4-(tert-butoxy)-N-(3-chlorobenzyl)-1-(2-(3-methylisoxazol-5-yl)acetyl)pyrrolidine-2-carboxamide
1360616-44-9

(2S,4R)-4-(tert-butoxy)-N-(3-chlorobenzyl)-1-(2-(3-methylisoxazol-5-yl)acetyl)pyrrolidine-2-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 4 - 20℃; for 14h; Inert atmosphere;94%
methyl chloroformate
79-22-1

methyl chloroformate

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

3-Methyl-isoxazol-5-yl-acetic acid methyl ester
27349-40-2

3-Methyl-isoxazol-5-yl-acetic acid methyl ester

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 0 - 20℃;93%
methanol
67-56-1

methanol

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

3-Methyl-isoxazol-5-yl-acetic acid methyl ester
27349-40-2

3-Methyl-isoxazol-5-yl-acetic acid methyl ester

Conditions
ConditionsYield
Stage #1: methanol; 2-(3-methylisoxazol-5-yl)acetic acid With thionyl chloride at 0 - 50℃; for 4h;
Stage #2: With sodium hydrogencarbonate In water; ethyl acetate
92%
With sulfuric acid at 70℃; for 2h; Temperature;91%
With sulfuric acid at 70℃; for 2h; Reagent/catalyst;91%
methyl 4-amino-6-chloro-4'-(dimethylamino)-[1,1'-biphenyl]-3-carboxylate
1398332-90-5

methyl 4-amino-6-chloro-4'-(dimethylamino)-[1,1'-biphenyl]-3-carboxylate

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

methyl 6-chloro-4'-(dimethylamino)-4-(2-(3-methylisoxazol-5-yl)acetamido)-[1,1'-biphenyl]-3-carboxylate
1398345-08-8

methyl 6-chloro-4'-(dimethylamino)-4-(2-(3-methylisoxazol-5-yl)acetamido)-[1,1'-biphenyl]-3-carboxylate

Conditions
ConditionsYield
With triethylamine; HATU In dichloromethane at 20℃; for 72h;92%
methyl 2-AMINO-5-CYANOBENZOATE
159847-81-1

methyl 2-AMINO-5-CYANOBENZOATE

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

5-cyano-2-[2-(3-methyl-isoxazol-5-yl)-acetylamino]-benzoic acidmethylester
835882-29-6

5-cyano-2-[2-(3-methyl-isoxazol-5-yl)-acetylamino]-benzoic acidmethylester

Conditions
ConditionsYield
With trichlorophosphate at 80℃; for 2h;91%
(2S,4R)-allyl 4-(tert-butoxy)pyrrolidine-2-carboxylate

(2S,4R)-allyl 4-(tert-butoxy)pyrrolidine-2-carboxylate

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

(2S,4R)-allyl 4-(tert-butoxy)-1-(2-(3-methylisoxazol-5-yl)acetyl)pyrrolidine-2-carboxylate
1448189-31-8

(2S,4R)-allyl 4-(tert-butoxy)-1-(2-(3-methylisoxazol-5-yl)acetyl)pyrrolidine-2-carboxylate

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 20℃; for 12h;88%
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 4 - 20℃; for 12h;88%
2-amino-5-(4-nitrophenyl)thiophene-3-carboxamide
1393912-02-1

2-amino-5-(4-nitrophenyl)thiophene-3-carboxamide

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

C17H12N4O4S
1393911-96-0

C17H12N4O4S

Conditions
ConditionsYield
With 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; triethylamine In chloroform at 120℃; Microwave irradiation;86%
2-benzylamino-5-chloro-benzoic acid benzyl ester
835882-22-9

2-benzylamino-5-chloro-benzoic acid benzyl ester

2-(3-methylisoxazol-5-yl)acetic acid
19668-85-0

2-(3-methylisoxazol-5-yl)acetic acid

2-{benzyl-[2-(3-methyl-isoxazol-5-yl)-acetyl]-amino}-5-chloro-benzoic acid benzyl ester
835882-23-0

2-{benzyl-[2-(3-methyl-isoxazol-5-yl)-acetyl]-amino}-5-chloro-benzoic acid benzyl ester

Conditions
ConditionsYield
With trichlorophosphate at 80℃; for 3h;81%
With trichlorophosphate

19668-85-0Relevant articles and documents

BIFUNCTIONAL MOLECULES CONTAINING AN E3 UBIQUITINE LIGASE BINDING MOIETY LINKED TO A BCL6 TARGETING MOIETY

-

Paragraph 00358; 00359, (2021/04/23)

Bifunctional compounds, which find utility as modulators of B-cell lymphoma 6 protein (BCL6; target protein), are described herein. In particular, the bifunctional compounds of the present disclosure contain on one end a Von Hippel-Lindau, cereblon, Inhibitors of Apotosis Proteins or mouse double-minute homolog 2 ligand that binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The bifunctional compounds of the present disclosure exhibit a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.

POLYCYCLIC COMPOUNDS AND METHODS FOR THE TARGETED DEGRADATION OF RAPIDLY ACCELERATED FIBROSARCOMA POLYPEPTIDES

-

Paragraph 1464; 1465, (2020/03/29)

The present disclosure relates to bifunctional compounds, ULM— L—PTM, which find utility as modulators of Rapidly Accelerated Fibrosarcoma (RAF, such as c-RAF, A- RAF and/or B-RAF; the target protein). In particular, the present disclosure is directed to bifunctional compounds, which contain on one end a Von Hippel-Lindau, cereblon, Inhibitors of Apotosis Proteins or mouse double-minute homolog 2 ligand which binds to the respective E3 ubiquitin ligase and on the other end a moiety which binds the target protein RAF, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The present disclosure exhibits a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aggregation or accumulation of the target protein, or the constitutive activation of the target protein, are treated or prevented with compounds and compositions of the present disclosure.

HYDROXYL PURINE COMPOUNDS AND USE THEREOF

-

Paragraph 0159; 0160; 0161, (2018/04/05)

Disclosed are a series of hydroxyl purine compounds and the use thereof as PDE2 or TNFα inhibitors, in particular, the compounds as shown in formula (I), or tautomers thereof or pharmaceutically acceptable salts thereof.

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