5-Acetyl-2-amino-6-methyl-4-(1-naphthyl)-4H-pyran-3-carbo­nitrile, methyl 6-amino-5-cyano-2-methyl-4-(1-naphthyl)-4H-pyran-3-carboxyl­ate and tert-butyl 6-amino-5-cyano-2-methyl-4-(1-naphthyl)-4H-pyran-3-carboxyl­ate

Nesterova, S.V.; Wiedenfeld, D.J.; Nesterov, V.N.

doi:10.1107/S0108270104013812

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 2
A view of the molecule of (IIIb

), showing the atom numbering used. Displacement ellipsoids are drawn at the 50% probability level and H atoms are shown as small spheres of arbitrary radii. Dashed lines indicate the weak intramolecular C—H⋯O hydrogen bond and the short intramolecular steric H⋯H interaction.

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 60| Part 8| July 2004| Pages o559-o563

doi:10.1107/S0108270104013812

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