Crystal Structure of the Azoxy Compound Formed by Photochemical Transformation of Niphedipine

Research paper by T. V. Rybalova, V. F. Sedova, Yu. V. Gatilov, O. P. Shkurko

Indexed on: 01 Sep '03Published on: 01 Sep '03Published in: Journal of Structural Chemistry


The crystal structure of 2,2'-bis[2,6-dimethyl-3,5-di(methoxycarbonyl)pyridinyl-4]azoxybenzene has been determined; the compound is formed as the major product of photodegradation of niphedipine subjected to prolonged exposure of its ethanolic solution to daylight and artificial illumination. It is established that in crystal, the above azoxy derivative has a trans configuration.