CPC C07C 309/47 (2013.01) [A61P 39/06 (2018.01)] | 4 Claims |
1. A method of making 8-(4-bromobenzylideneamino)naphthalene-1,3-disulfonic acid compound having the formula I:
![]() the method comprising:
mixing 8-aminonaphthalene-1,3-disulfonic acid, 4-bromobenzaldehyde, and triethylamine (TEA) in ethanol to obtain solution;
irradiating the solution at 50° C., followed by cooling to room temperature to obtain a formed precipitate;
purifying the formed precipitate by filtering and recrystallization using ethanol; and
obtaining the 8-(4-bromobenzylideneamino)naphthalene-1,3-disulfonic acid compound.
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