Acta Cryst. (2004). E60, o2462-o2464  [ doi:10.1107/S1600536804030363 ]

A synthetic intermediate of enantiopure N-protected -hydroxyvaline, (2R)-2-[N-(tert-butoxycarbonyl)amino]-3-methylbutane-1,3-diol

H. Oku, R. Naito, K. Yamada and R. Katakai

Abstract: Crystals of the title compound [systematic name: (2R)-tert-butyl N-(1,3-dihydroxy-3-methyl-2-butyl)carbamate], C₁₀H₂₁NO₄, were successfully grown from an ethyl acetate solution. There is one independent molecule in the asymmetric unit. The urethane linkage, -O-CO-NH-, is a cis conformer and the molecules are linked into a dimer by two N-HO=C hydrogen bonds. The dimers are connected together by O-HO hydrogen bonds in which four hydroxy groups are involved.

Online 27 November 2004

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