Article
Stereoselective Reactions of N-(9-Phenylfluoren-9-yl)-4-oxoproline Enolates. An Expedient Route for the Preparation of Conformationally Restricted Amino Acid Analogues// Blanco Maria-Jesus, Paleo M. Rita, Penide Celia, Sardina F. Javier// J. Org. Chem., 64 (1999) 24, 8786-8793
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http://dx.doi.org/10.1021/jo990283hAMINO ACIDS H8 IA NOVEL SYNTHESIS OF 'GAMMA'-CARBOXY-L-GLUTAMIC ACID FROM L-5-OXOPROLINE ESTERS// EFFENBERGER, FRANZ;MULLER, WOLFGANG;KELLER, ROLAND;WILD, WOLFGANG;ZIEGLER, THOMAS// J. ORG. CHEM., 55,(1990) N0, C. 3064-3067
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http://dx.doi.org/10.1021/jo00297a022