Methoxycarbonyl-L-tert-leucine

CAS No.：162537-11-3

Other grades of this product :

Methoxycarbonyl-L-tert-leucine Basic information

Description References

Product Name:	Methoxycarbonyl-L-tert-leucine
Synonyms:	MOC-L-tert.Leucine;(S)-2-Methoxycarbonylamino-3,3-dimethylbutyric acid;Methoxycarbonyl-L-tert-leucine;N-(Methoxycarbonyl)-3-methyl-L-valine;N-Methoxycarbonyl-tert-leucine;Atazanavir related coMpound A;MOC-L-tert. Leucin;L-Valine,N-(Methoxycarbonyl)-3-Methyl-
CAS:	162537-11-3
MF:	C8H15NO4
MW:	189.21
EINECS:	431-620-3
Product Categories:	Amino Acid Derivatives;Amino Acids 13C, 2H, 15N;Amino Acids & Derivatives;Chiral Reagents
Mol File:	162537-11-3.mol

Methoxycarbonyl-L-tert-leucine Chemical Properties

Melting point	1090C
Boiling point	320.9±25.0 °C(Predicted)
density	1.126±0.06 g/cm3(Predicted)
vapor pressure	0Pa at 25℃
storage temp.	2-8°C
solubility	Soluble in ethyl acetate and methanol.
pka	4.46±0.10(Predicted)
form	powder
Water Solubility	26.4g/L at 20℃
InChIKey	NWPRXAIYBULIEI-RXMQYKEDSA-N
LogP	0.832 at 21℃

Safety Information

HS Code

2933399090

MSDS Information

Methoxycarbonyl-L-tert-leucine Usage And Synthesis

Description	Methoxycarbonyl-L-tert-leucine is a kind of amino acid deriviative. It is a very useful intermediate for efficient synthesis of the HIV protease inhibitor BMS-232632 as well as atazanavir bisulfate.
References	Zhongmin Xu, †, et al. "Process Research and Development for an Efficient Synthesis of the HIV Protease Inhibitor BMS-232632." Organic Process Research & Development 6.3(2002):323-328. Simhadri, Srinivas. "Process for the preparation of atazanavir bisulfate." (2016). https://www.alfa.com/en/search/?q=14328-63-3
Chemical Properties	White Solid
Uses	The coupling of the two key intermediates, N-(methoxycarbonyl)-l-tert-leucine acylated benzyl hydrazine and chloromethyl ketone, via an S N 2 reaction furnished the amino ketone in high yield under our optimized conditions in practical synthesis of the HIV Protease Inhibitor Atazanavir via a Highly diastereoselective Reduction Approach.
Flammability and Explosibility	Notclassified

Methoxycarbonyl-L-tert-leucine Preparation Products And Raw materials

Raw materials	N-Boc-L-tert-Leucine-->Methyl chloroformate-->L-tert-Leucine
Preparation Products	Atazanavir

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