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CAS No. : | 537-55-3 | MDL No. : | MFCD00037190 |
Formula : | C11H13NO4 | Boiling Point : | - |
Linear Structure Formula : | CH3CONHCH(CH2C6H4OH)CO2H | InChI Key : | CAHKINHBCWCHCF-JTQLQIEISA-N |
M.W : | 223.23 | Pubchem ID : | 68310 |
Synonyms : |
NAT;NSC 10853;Acetyl tyrosine;N-Acetyltyrosine
|
Chemical Name : | (S)-2-Acetamido-3-(4-hydroxyphenyl)propanoic acid |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | 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 |
---|---|---|
69% | In methanol; at 60℃; for 2h; | Into a 250mL three-necked flask, add 50mL of methanol and 2g of (R,S)-(2-(3-ethoxy-4-methoxyphenyl)-1-(formamido)-2-ethylamine respectively, 0.8g N-acetyl-L-tyrosine, the feed ratio of (R,S)-(2-(3-ethoxy-4-methoxyphenyl)-1-(formamido)-2-ethylamine and N-acetyl-L-tyrosine is 1:0.6 (molar ratio), stir and heat to reflux at 60C, continue refluxing for 2 hours. Stop heating, cool at room temperature, cool at 25C, incubate and stir for 3 hours, suction filter, filter cake rinsed with methanol and dry, and obtained Apremilast intermediate: N-Acetyl-L-tyrosine salt crude of (S)-(2-(3-ethoxy-4-methoxyphenyl)-1-(formamido)-2-ethylamine 1.65g, yield 69%. |