- Preparation method of bromocriptine mesylate
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The invention relates to a preparation method of bromocriptine mesylate. The preparation method comprises the following steps of: dissolving bromocriptine with methanol, dropwisely adding a newly prepared methanesulfonic acid water solution with the molar weight 1.1-1.5 times that of the bromocriptine under a stirring condition, continuing stirring for 10-40 minutes, cooling to 0 DEG C and to roomtemperature, performing filtering to obtain a solid, recrystallizing the solid with ethanol once, performing filtering and drying so as to obtain bromocriptine mesylate.
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Paragraph 0029; 0065-0066; 0067-0068; 0069-0070; 0071-0072
(2021/03/23)
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