H-Glu-OtBu

Modify Date: 2024-01-02 13:36:06

H-Glu-OtBu Structure
H-Glu-OtBu structure
Common Name H-Glu-OtBu
CAS Number 45120-30-7 Molecular Weight 203.236
Density 1.1±0.1 g/cm3 Boiling Point 326.8±32.0 °C at 760 mmHg
Molecular Formula C9H17NO4 Melting Point 140ºC
MSDS N/A Flash Point 151.5±25.1 °C

 Use of H-Glu-OtBu


H-Glu-OtBu is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). H-Glu-OtBu is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1][2

 Names

Name (S)-4-Amino-5-(tert-butoxy)-5-oxopentanoic acid
Synonym More Synonyms

 H-Glu-OtBu Biological Activity

Description H-Glu-OtBu is a non-cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). H-Glu-OtBu is also a alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1][2
Related Catalog
Target

Non-cleavable

In Vitro ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker[1]. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[2].
References

[1]. Beck A, et al. Strategies and challenges for the next generation of antibody-drug conjugates. Nat Rev Drug Discov. 2017;16(5):315-337.

[2]. Nalawansha DA, et al. PROTACs: An Emerging Therapeutic Modality in Precision Medicine. Cell Chem Biol. 2020;27(8):998-985.

 Chemical & Physical Properties

Density 1.1±0.1 g/cm3
Boiling Point 326.8±32.0 °C at 760 mmHg
Melting Point 140ºC
Molecular Formula C9H17NO4
Molecular Weight 203.236
Flash Point 151.5±25.1 °C
Exact Mass 203.115753
PSA 89.62000
LogP 0.77
Appearance of Characters Powder | White
Vapour Pressure 0.0±1.5 mmHg at 25°C
Index of Refraction 1.476
Storage condition Store at 0°C

 Safety Information

Hazard Codes Xi
HS Code 2922509090

 Synthetic Route

~79%

H-Glu-OtBu Structure

H-Glu-OtBu

CAS#:45120-30-7

Literature: Eli Lilly and Company; COR Therapeutics Inc. Patent: US6291469 B1, 2001 ;

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H-Glu-OtBu Structure

H-Glu-OtBu

CAS#:45120-30-7

Literature: Gengrinovitch, Stela; Izakovich, Esther Patent: US2007/72800 A1, 2007 ; Location in patent: Page/Page column 13 ;

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H-Glu-OtBu Structure

H-Glu-OtBu

CAS#:45120-30-7

Literature: Roeske,R. Journal of Organic Chemistry, 1963 , vol. 28, p. 1251 - 1253

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H-Glu-OtBu Structure

H-Glu-OtBu

CAS#:45120-30-7

Literature: Roeske,R. Journal of Organic Chemistry, 1963 , vol. 28, p. 1251 - 1253

~%

H-Glu-OtBu Structure

H-Glu-OtBu

CAS#:45120-30-7

Literature: Behrendt, L. Kirk Patent: US2004/30177 A1, 2004 ; Location in patent: Page 3 ;

~%

H-Glu-OtBu Structure

H-Glu-OtBu

CAS#:45120-30-7

Literature: Behrendt, L. Kirk Patent: US2004/30177 A1, 2004 ; Location in patent: Page 3 ;

 Customs

HS Code 2922509090
Summary 2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Synonyms

L-Glutamic acid, 1-(1,1-dimethylethyl) ester
L-Glutamic acid α-tert·butyl ester
(4S)-4-Amino-5-[(2-methyl-2-propanyl)oxy]-5-oxopentanoic acid
(4S)-4-Amino-5-tert-butoxy-5-oxopentanoic acid (non-preferred name)
H-Glu-OtBu
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