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CAS No. : | 19728-63-3 | MDL No. : | MFCD00065948 |
Formula : | C12H15NO5 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | IPJUIRDNBFZGQN-SCZZXKLOSA-N |
M.W : | 253.25 | Pubchem ID : | 88217 |
Synonyms : |
|
Chemical Name : | (2S,3R)-2-(((Benzyloxy)carbonyl)amino)-3-hydroxybutanoic acid |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1.149 g | A solution of (2S,3R)-2-benzyloxycarbonylamino-3-hydroxybutanoic acid (1.0g, 4.0mmol) in DMF (15.0mL) and deionized water (5.0mL) was treated with cesium carbonate (644.5mg, 2.0mmol), stirred for 30min, concentrated, and then azeotropically dried with toluene (3×10mL). A solution of benzyl bromide (0.71mL, 5.9mmol) in DMF (10.0mL) was then added. After 24h, water (15mL) was added, and the mixture was extracted with ethyl acetate (2×30mL). The organic extract was dried over anhydrous sodium sulfate and concentrated. The residue was purified by flash column chromatography, eluting with 1:3 ethyl acetate/hexane, to give 36 (1.149g, 84% yield) as a white powder: 1H NMR (400MHz, CDCl3) delta 7.26-7.35 (m, 10H), 5.60 (d, 1H, J=8.7Hz), 5.17-5.24 (m, 2H), 5.13 (s, 2H), 4.37-4.39 (m, 2H), 1.97 (broad, 1H), 1.63 (broad, 1H), 1.23 (d, 1H, J=6.3Hz); 13C NMR (125MHz, CDCl3) delta 171.2, 156.9, 136.2, 135.3, 128.6, 128.5, 128.5, 128.2, 128.0, 68.0, 67.4, 67.2, 59.5, 19.9; LC-ESI-MS [M+H]+ calcd for C19H21NO5 344.14, found 344.03. |