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tert-butyl (2S)-4-amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoate

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Origin: China

Cas No: 25456-85-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Product Description

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CAS No.: 25456-85-3 Formula: C16H22N2O5 Molecular Weight: 322.35600

Basic Info

Chemical Name	tert-butyl (2S)-4-amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoate
Synonyms	Z-L-asparagine tert-butyl ester; Z-Asn-OtBu; Carbobenzoxy-L-asparagin-tert.-butylester; tert-butyl (2S)-3-carbamoyl-2-[(phenylmethoxy)carbonylamino]propanoate; (S)-N-benzyloxycarbonylaspargine t-butyl ester;
CAS No.	25456-85-3
Molecular Formula	C16H22N2O5
Molecular Weight	322.35600
PSA	107.72000
LogP	2.58970

Properties

Density	1.188 g/cm3
Boiling Point	542ºC at 760 mmHg
Flash Point	281.6ºC
Storage Condition	-15ºC

Safety Info

HS Code	2924299090

Synthesis Route

(2S)-3-cyano-2-(phenylmethoxycarbonylamino)propanoic acid+Isobutene→tert-butyl (2S)-4-amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoate
(S)-tert-butyl isoxazolidine-3-carboxylate→tert-butyl (2S)-4-amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoate
t-butyl (3S)-2-(2,3:5,6-di-O-isopropylidene-α-D-mannofuranosyl)-3-isoxazolidinecarboxylate→tert-butyl (2S)-4-amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoate

Precursor

(S)-tert-butyl isoxazolidine-3-carboxylate
(2S)-3-cyano-2-(phenylmethoxycarbonylamino)propanoic acid
t-butyl (3S)-2-(2,3:5,6-di-O-isopropylidene-α-D-mannofuranosyl)-3-isoxazolidinecarboxylate
Z-Ser-OtBu

Downstream Product

tert-butyl (2S)-2,4-diamino-4-oxobutanoate
(2S)-4-amino-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid

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