The invention discloses a method for preparing indobufen; by optimizing the processes such as using a carbon-supported noble metal as a catalyst in hydrogenation reduction, using a suitable organic acid solvent in zinc powder reduction and introducing hydrogen chloride gas, the preparation method of indobufen is simple to perform and high in yield; the whole preparation method is good in safety, environmentally friendly, good for protecting the health of workers and suitable for industrial use, and the purity of prepared indobufen is high.
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Paragraph 0028; 0029; 0031; 0032; 0033
(2017/08/29)
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