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46 3 Vol. 46 No. 3
2016 6 Jun 2016

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S-1-4-׻-5-Ě-2-ĺϳ
O dS x* (yng)ˎƴW(xu) ˎ̌W(xu)Ժ| (yng) 110016
ժҪԌu׻ȩ׻ȹԭڵ⻯c߻ŒSλuM(jn)uua(chn)cL-Ȱ}}̼`ᄩl­h(hun)õĿˮa(chn)S-1-4-׻-5-Ě-2-ضȵȲͬ،Ӱ(yu)l·ʞ57.5%Ŀ˻Y(jng)1H NMR13C NMRGC-MS_C
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Synthesis of (S)-1-((4-Formylphenyl)methyl)-5-oxo- pyrrolidine-2-carboxylate
SUN Xun, XU Yong-nan, ZHANG Hui* (College of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China)
Abstract(S)-1-((4-Formylphenyl)methyl)-5-oxopyrrolidine-2-carboxylate was obtained using p-hydroxylbenz-aldehyde as the starting material. The typical process included the hydroxyl group on p-hydroxylbenzaldehyde was halogenated using sodium iodide and TMSC; dimethyl L-glutamate hydrochloride was added to displace the halogen by adding anhydrous potassium carbonate as acid binding agent; cyclization by adding acetic acid, the crude product was further purified by silica gel column chromatography. The main influence factors including the ratio of materials, the temperature of reaction were evaluated. The total yield of the reaction is 57.5%. The structure of this target compound was also characterized using 1H NMR, 13C NMR and GC-MS.
Key wordshalogenation; dimethyl l-glutamate hydrochloride; cyclization
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“(lin) ϵ ˣ xTʿҪˎﻯW(xu)cЙCW(xu)оE-mailzh19683@163.com
ոڣ 2016-04-2
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