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The crystal structure of dimethyl syn-(Z)-2-(4-methylphenylmethylene)-3-(1,5,5-trimethylpyrrolidene-2-ylidene)butanedioate, C21H27NO4, has been determined in order to establish its constitution and configuration, and to characterize the preferred conformation in the solid state. There are notable differences in the conformations of the functional groups; the essential structural features are discussed and compared.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablock niewa

fcf

Structure factor file (CIF format)
Contains datablock niewa

CCDC reference: 128453

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