5,5′‐(Piperazine‐1,4‐di­yl)bis­(8‐chloro­pyrido[2,3‐b][1,5]benzoxazepine)

2006 
The centrosymmetric title compound, C28H20Cl2N6O2, features a tricyclic framework with the characteristic V-shape of the pyridobenzoxazepine nucleus and with the central seven-membered heterocycle having a classical boat conformation. The piperazine ring displays an almost-perfect chair conformation, with the tricyclic nuclei assuming a pseudo-equatorial orientation.
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