A Practical Asymmetric Synthesis of Enantiomerically Pure 3-Substituted Pyroglutamic Acids and Related Compounds This work was supported by grants from the U.S. Public Health Service (Grant DK 17420) and the National Institute of Drug Abuse (DA 06284 and DA 04248). The views expressed are those of the authors and not necessarily those of the USPHS.
Department of Chemistry The University of Arizona 1306 E. University, Tucson, AZ 85721 (USA).
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