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ChemicalBook CAS DataBase List Minocycline hydrochloride
13614-98-7

Minocycline hydrochloride synthesis

4synthesis methods
-

Yield:13614-98-7 92.7%

Reaction Conditions:

with hydrogenchloride in ethanol at 0 - 5; pH=1 - 2; for 1 h;Solvent;

Steps:

21-22

General procedure: 10g of Intermediate IV was dissolved in 30ml methanol, cooled to 0-5°C, concentrated hydrochloric acid was added dropwise to adjust Ph to 1-2, after stirring for 1h, a white suspension was obtained, filtered, the filter cake was washed with a small amount of methanol, and dried to obtain 9g of white solid powder (minocycline hydrochloride), the molar yield is 83.4%, and the HPLC purity is 98.5%.

References:

CN112574057,2021,A Location in patent:Paragraph 0024; 0052-0053

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