Acta Cryst. (2004). E60, o2261-o2263  [ doi:10.1107/S1600536804028089 ]

A synthetic fragment of a cyclic depsipeptide, aureobasidine A: tert-butoxycarbonyl-L-allo-isoleucyl-N-methyl-L-valine (Boc-L-allo-Ile-L-MeVal-OH)

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

Abstract: Crystals of the title compound, C₁₆H₃₀N₂O₅, were successfully grown from an ethyl acetate solution. There are two independent molecules in the asymmetric unit. One molecule has a cis and the other a trans conformation at the urethane linkage, -O-CO-NH-. Independent molecules are linked into chains by NHO=C and OHO=C hydrogen bonds along the c axis.

Online 13 November 2004

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