Set of intermediate compounds for production of mirtazapine consists of reaction products yielding piperazine derivatives by cyclization in presence of reducing agent

摘要

The set of intermediate compounds for production of mirtazapine comprises the products of reactions yielding (+-)-3-phenyl-1-methyl piperazine. Also claimed is a process for making the compounds. Preferred Process: The process promotes cyclization in the presence of a reducing agent.