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1-(TERT-BUTOXYCARBONYL)-2,5-DIHYDRO-1H-PYRROLE-2-CARBOXYLIC ACID synthesis

3synthesis methods
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Yield:51077-13-5 100%

Reaction Conditions:

Stage #1: di-tert-butyl dicarbonate;DL-3,4-Dehydroprolinewith potassium carbonate in tetrahydrofuran;water at 20;
Stage #2: with citric acid in tetrahydrofuran;water;

References:

WO2006/22442,2006,A1 Location in patent:Page/Page column 66

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