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Acta Cryst. (2014). C70, 408-415
[ doi:10.1107/S2053229614006007 ]

Four related benzazepine derivatives in a reaction pathway leading to a benzazepine carboxylic acid: hydrogen-bonded assembly in zero, one, two and three dimensions

S. A. Guerrero, C. M. Sanabría, A. Palma, J. Cobo and C. Glidewell

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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