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The procedure is as above, with dibromododecane and 2-amino-4-para-tolylpyridine, which is synthesized according to Chambron J.Cl. Strasbourg Tetrah. 1987 43 (5) 895/905. The product obtained is purified in the base state on a silica column with a benzene/ethyl acetate mixture. It is reconverted to the hydrobromide with a mixture of ether and an isopropanol solution of hydrogen bromide. It can then be recrystallized.

1. customis synthesized
2. customThe product obtained
3. customis purified in the base state on a silica column with a benzene/ethyl acetate mixture
4. additionIt is reconverted to the hydrobromide with a mixture of ether
5. customIt can then be recrystallized