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Synlett 2007(13): 2127-2129
DOI: 10.1055/s-2007-984875
DOI: 10.1055/s-2007-984875
LETTER
© Georg Thieme Verlag Stuttgart · New York
One-Pot Synthesis of Symmetrical and Unsymmetrical Diketopiperazines from Unprotected Amino Acids
Further Information
Received
25 April 2007
Publication Date:
27 June 2007 (online)
Publication History
Publication Date:
27 June 2007 (online)
Abstract
An efficient synthesis of symmetrical and unsymmetrical proline-type diketopiperazines using a phosphite-promoted coupling was used to generate diketopiperazines with overall good yields from unprotected amino acids.
Key words
amino acids - diketopiperazines - thiolation - heterocycles
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References and Notes
CCDC-650358 contains the crystallographic data for 8a. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.uk/data_request/cif.