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Picture of (2S)-4-[(2-methylpropan-2-yl)oxy]-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid

(2S)-4-[(2-methylpropan-2-yl)oxy]-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid

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Origin: China

Cas No: 5545-52-8

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

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

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  • Products Specification
  • Product Description
  • Quick Details

    CAS No.:
    5545-52-8
    MF:
    5545-52-8
    EINECS No.:
    5545-52-8
    Type:
    Pharmaceutical Intermediates
    Purity:
    0.99
    Application:
    Pharmaceutical intermediates
    Appearance:
    powder
    Product Name:
    CAS No. 5545-52-8
    Type of product:
    pharmaceutical raw material
    Grade:
    Medical Grade

    Packaging&Delivery

    Selling Units:
    Single item
    Single package size: 
    15X10X10 cm
    Single gross weight:
    1.000 kg
    Package Type:
    According to the customer demand
    Lead Time:
    Quantity(Kilograms)1 - 10>10
    Est. Time(days)5To be negotiated
  • Property

    CAS No.: 5545-52-8 Formula: C16H21NO6 Molecular Weight: 323.34100

    Description

    (S)-3-(((Benzyloxy)carbonyl)amino)-5-isopropoxy-5-oxopentanoic Acid has been used for the preparation of β-protected aspartate and γ-protected glutamate.

    Basic Info

    Chemical Name (2S)-4-[(2-methylpropan-2-yl)oxy]-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid
    Synonyms

    Z-L-Aspartic acid 4-tert-butyl ester;
    Z-Asp(Ot-Bu)-OH,H2O;
    N-Cbz-L-aspartic acid 4-tert-butyl ester;
    Cbz-L-Aspartic 4-tert-butyl ester;
    Z-Asp-OtBu;
    Cbz-L-aspartic acid 4-tert-butyl ester;
    Z-Asp(OtBu)-OH.DCHA;

    CAS No. 5545-52-8
    Molecular Formula C16H21NO6
    Molecular Weight 323.34100
    PSA 101.93000
    LogP 2.48870

    Properties

    Appearance & Physical State White Powder
    Density 1.219 g/cm3
    Boiling Point 513.1ºC at 760 mmHg
    Melting Point 76.7ºC
    Flash Point 264.1ºC
    Refractive Index 1.526
    Storage Condition -20ºC

    Safety Info

    Safety Statements S22-S24/25
    WGK Germany 3

    Synthesis Route

    (S)-4-tert-Butyl 1-methyl 2-(((benzyloxy)carbonyl)amino)succinate(2S)-4-[(2-methylpropan-2-yl)oxy]-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid
    (S)-3-benzyloxycarbonyl-5-oxo-4-oxazolidine acetic acid tert-butyl ester(2S)-4-[(2-methylpropan-2-yl)oxy]-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid
    tert-Butyl acetate+N-Carbobenzyloxy-L-aspartic acid+(2S)-4-[(2-methylpropan-2-yl)oxy]-4-oxo-2-(phenylmethoxycarbonylamino)butanoic acid

    Precursor

    (S)-4-tert-Butyl 1-methyl 2-(((benzyloxy)carbonyl)amino)succinate
    tert-Butyl acetate
    1-O-benzyl 4-O-tert-butyl (2S)-2-aminobutanedioate
    N-Carbobenzyloxy-L-aspartic acid

    Downstream Product

    tert-butyl (3S)-5-bromo-4-oxo-3-(phenylmethoxycarbonylamino)pentanoate
    (3S)-4-methoxy-4-oxo-3-(phenylmethoxycarbonylamino)butanoic acid
    (2S)-2-amino-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid
    4-O-tert-butyl 1-O-(2,5-dioxopyrrolidin-1-yl) (2S)-2-(phenylmethoxycarbonylamino)butanedioate

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