| 摘要 |
There is provided a process for the preparation of olanzapine comprising: i) reacting 4-amino-2-methyl-10H-thieno-[2,3-b][1,5]benzodiazepine and N-methylpiperazine in a C1 to C4 alcoholic solvent or mixture thereof at suitable temperature and for a suitable time, ii) cooling the reaction mixture, and iii) isolating the precipitated olanzapine.
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