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The crystal structure of the potential active 4,6-dimethyl-9-phenyl-8,12-dioxa-4,6-diazatetracyclo [8.8.0.02,7.013,18] octadeca-2(7),13,15,17-tetraene-3,5,11-trione 2-ethoxyphenyl (2E)-but-2-enoate (C22H18N2O5) has been determined from single crystal X-ray diffraction data. In the title compound crystallizes in the monoclinic space group P121/c1 with unit cell dimension a=15.2039(8), b=12.3888(6) and c= 9.8162(5) [alpha & gamma=90 beta=98.113(2)]. In the structure fused pyrone and pyran rings each adopt a sofa/envelop conformation. The crystal structure is stabilized by intramolecular CH...O hydrogen bond interaction.

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Crystal and Molecular Structure of 4,6-Dimethyl-9-phenyl-8,12-dioxa-4,6-diazatetracyclo [8.8.0.02,7.013,18]octadeca-2(7),13,15,17-tetraene-3,5,11-trione 2-ethoxyphenyl (2E)-but-2-enoate