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CAS No. : | 54-12-6 | MDL No. : | MFCD00064339 |
Formula : | C11H12N2O2 | Boiling Point : | - |
Linear Structure Formula : | C8H5NHCH2CHNH2CO2H | InChI Key : | QIVBCDIJIAJPQS-UHFFFAOYSA-N |
M.W : | 204.23 | Pubchem ID : | 1148 |
Synonyms : |
(±)-Tryptophan;NSC 13118;(R,S)-Tryptophan
|
Chemical Name : | 2-Amino-3-(1H-indol-3-yl)propanoic 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 |
---|---|---|
With LiOH; trifluoroacetic acid; In tetrahydrofuran; methanol; dichloromethane; toluene; | Synthesis of Cbz-protected methoxytryptophane 10 Trifluoroacetic acid (0.5 mL) was added dropwise to a solution of methoxytryptophane 9 (95 mg, 0.20 mmol) in dichloromethane (4 mL) at 0 C. The reaction mixture was stirred for 3.5 hours at room temperature. The solution was concentrated by co-evaporation with toluene (3 x 5 mL) and the resulting deprotected tryptophane was used directly in the next step. A 0.5 N aqueous solution of LiOH (0.8 mL, 0.4 mmol) was added to a solution of the deprotected tryptophane in tetrahydrofurane/methanol/water (7:1.3:4 mL) at 0 C. The reaction mixture was warmed to room temperature and stirred for 2 hours. The solution was partitioned between 0.1 N aqueous HCl (15 mL) and dichloromethane (15 mL). The aqueous layer was extracted with dichloromethane (2 x 15 mL) and the organic layers were combined, dried (Na2SO4) and concentrated. The residue was purified by column chromatography (dichloromethane with a gradient of 1 to 5% methanol) to give 51 mg of Cbz-protected methoxytryptophane 10 as a white solid (0.14 mmol, 70%, 2 steps). Rf = 0.27 (Ethyl acetate /n-hexane 3:1, with 1% acetic acid); |
A1537125[ 164794-85-8 ]
2-Amino-3-(1H-indol-3-yl)propanoic acid-α-13C
Reason: Stable Isotope