Synthesis 2015; 47(03): 351-358
DOI: 10.1055/s-0034-1378902
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Orthogonally Protected (2R,3R,4S)-4-Amino-2,3-dihydroxyheptane-1,7-dioic Acid

Yoshinori Tokairin
Department of Biochemical Engineering, Graduate School of Science and Technology, Yamagata University, Yonezawa, Yamagata­ 992-8510, Japan   Fax: +81(238)263131   Email: konno@yz.yamagata-u.ac.jp
,
Kakeru Maita
Department of Biochemical Engineering, Graduate School of Science and Technology, Yamagata University, Yonezawa, Yamagata­ 992-8510, Japan   Fax: +81(238)263131   Email: konno@yz.yamagata-u.ac.jp
,
Sho Takeda
Department of Biochemical Engineering, Graduate School of Science and Technology, Yamagata University, Yonezawa, Yamagata­ 992-8510, Japan   Fax: +81(238)263131   Email: konno@yz.yamagata-u.ac.jp
,
Hiroyuki Konno*
Department of Biochemical Engineering, Graduate School of Science and Technology, Yamagata University, Yonezawa, Yamagata­ 992-8510, Japan   Fax: +81(238)263131   Email: konno@yz.yamagata-u.ac.jp
› Author Affiliations
Further Information

Publication History

Received: 28 August 2014

Accepted after revision: 30 September 2014

Publication Date:
06 November 2014 (online)


Abstract

(2R,3R,4S)-4-Amino-2,3-dihydroxyheptane-1,7-dioic acid, a common component of cyclic depsipeptide homophymines with anti-HIV activity, was synthesized as its orthogonally protected derivative from Fmoc-Glu(t-Bu)-OH in 6 steps. Osmium-catalyzed dihydroxylation of γ-amino-Z-α,β-unsaturated esters gave the dihydroxy esters with moderate diastereoselectivity. The stereochemistries of the amino acids­ were determined by comparison of 1H NMR spectra.

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