반응 #10462
ord-0e53689819a44ea5b6020ddf049fe8f2
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반응 조건
상세 조건
See reaction.notes.procedure_details.
실험 절차
0.3 M glutamine and 1.5 M ethylamine were allowed to react at 30° C. for 22 hours in borate buffer (Na2B4O7—NaOH, pH 11) in the presence of 0.3 U glutaminase, to give 225 nmol of L-theanine. In addition, a by-product glutamic acid was 20 nmol. The purification of theanine from the reaction mixture was carried out by subjecting the reaction mixture to column chromatography using Dowex 50×8 column and Dowex 1×2 column, and thereafter treating the resulting product with ethanol.