17-Hydroxy-1,8-dimethyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9(14),10,12-hexaene-16,18-dione

17-Hydroxy-1,8-dimethyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9(14),10,12-hexaene-16,18-dione

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In the title compound, C20H17NO3 (alternative name: N-hydroxy-9,10-dimethyl-9,10-ethanoanthracene-11,12-dicarboximide), the rigid ethanoanthracene-dicarboximide moiety has a roof-shaped geometry, the 2006 nissan altima radio interplanar angle between the two terminal phenyl rings being 124.9 (6)°.In the crystal, molecules are linked via mpu63zm/a O—H.O hydrogen bonds, forming chains along [010].

C—H.O and C—H.π interactions link adjacent chains, leading to the formation of a three-dimensional structure.