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Acta Crystallogr Sect E Struct Rep Online. 2013 Apr 5;69(Pt 5):o632. doi: 10.1107/S1600536813007551. Print 2013 May 1.

(3R,4S,5R)-Methyl 3,5-bis-[(tert-butyl-dimethyl-sil-yl)-oxy]-4-meth-oxy-cyclo-hex-1-ene-carboxyl-ate.

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1
School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, People's Republic of China.

Abstract

The title compound, C21H42O5Si2, was synthesized from (3R,4S,5R)-methyl 3,5-bis-[(tert-butyl-dimethyl-sil-yl)-oxy]-4-hy-droxy-cyclo-hex-1-ene-carboxyl-ate by an esterification reaction. The cyclo-hexene ring adopts a half-chair conformation. In the crystal, mol-ecules are linked via C-H⋯O hydrogen bonds, forming helical chains propagating along [010].

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