## Abstract D,L‐3‐[^11^C]‐Alanine was prepared by methylation with ^11^CH~3~I of tert butyl 2‐isocyanoacetate and subsequent hydrolysis. Enzymatic reaction using glutamate pyruvate transaminase and lactate dehydrogenase in a coupled reaction yields L‐3‐[^11^C]‐lactic acid. The radiochemical yield i
The enzymatic synthesis of l-[3-11C]serine
✍ Scribed by H. Svärd; S.-B. Jigerius; B. Långström
- Publisher
- Elsevier Science
- Year
- 1990
- Weight
- 476 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0883-2889
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✦ Synopsis
L-[3-"C]Serine has been prepared from ["Clmethanol by a series of coupled enzymatic reactions using alcoholoxidase (EC 1.1.3.13) and catalase (EC I. 1 I. 1.6) to give [" Clformaldehyde, which was condensed with tetrahydrofolate. The N,5 N'"["C]methylenetetrahydrofolate formed, was used directly with serine hydroxymethyltransferase (EC 2.1.2. I) immobilized on glutaraldehyde-activated controlled porous glass beads. L-[3-"C]Serine (specific radioactivity 30_50mCi/pmol) was obtained in a l-2% yield after a synthesis time of 5045 min counted from release of ["Clcarbon dioxide.
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