Desloratadine N-Hydroxy Impurity

Chemical Name: Desloratadine N-Hydroxy Impurity ; N-Hydroxy Desloratadine ; Desloratadine N-Hydroxypiperidine ; 8-Chloro-6,11-dihydro-11-(1-hydroxy-4-piperidinylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine ;