Sans M, Illa O, Ortuño RM. Stereoselective synthesis of all stereoisomers of orthogonally protected cyclobutane-1,2-diamine and some chemoselective transformations.
Org Lett 2012;
14:2431-3. [PMID:
22545793 DOI:
10.1021/ol300689e]
[Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The four stereoisomers of protected cyclobutane-1,2-diamine have been prepared in an enantio- and diastereocontrolled manner through stereodivergent synthetic routes starting from a half-ester as a common chiral precursor. Orthogonal protection allows the chemoselective manipulation of both amino groups as shown in this work.
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