Olma A, Lasota A, Kudaj A. A convenient route to optically pure α-alkyl-β-(sec-amino)alanines.
Amino Acids 2012;
42:2525-8. [PMID:
21847610 PMCID:
PMC3351611 DOI:
10.1007/s00726-011-1055-3]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 07/30/2011] [Indexed: 11/15/2022]
Abstract
The cyclization of N-Boc-α-alkylserines to corresponding β-lactones under Mitsunobu reaction conditions and the ring opening with heterocyclic amines (pyrrolidine, piperidine, morpholine and thiomorpholine) produced N-Boc-α-alkyl-β-(sec-amino)alanines. The removal of the Boc group gives di-hydrochlorides of non-protein amino acids.
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