Acta Cryst. (2003). C59, o305-o307  [ doi:10.1107/S0108270103008680 ]

1-Acetyl-4'-ethyl-2a'-phenyl-2',2a',5',5a'-tetrahydrospiro[1H-indole-3,2'-oxeto[5,4-b]oxazol]-2(3H)-one and 1-acetyl-4',5a'-diphenyl-2',2a',5',5a'-tetrahydrospiro[1H-indole-3,2'-oxeto[5,4-b]oxazol]-2(3H)-one

A. Usman, H.-K. Fun, L. Wang, Y. Zhang and J.-H. Xu

Formula: C₂₁H₁₈N₂O₄ and C₂₅H₁₈N₂O₄

Online 10 May 2003

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