Acta Cryst. (2014). C70, 408-415
[ doi:10.1107/S2053229614006007 ]
Synopsis: Four related compounds exemplify the reaction sequence from a 1,4-epoxybenzazepine ester via its reduction product, a benzazepin-4-ol ester, and the corresponding hydroxy carboxylic acid, to a lactone as formed by intramolecular condensation.
Formula: C12H13NO3, C12H15NO3, C11H13NO3 and C12H10F3NO3
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