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. 2016 Jul 13;6:29760. doi: 10.1038/srep29760

Figure 1. Structures of curcumin (compound 1) and 25 curcumin analogs (compound 2-26).

Figure 1

1, 1,7-Bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione); 2, 1,7-Bis(3,4,5-trimethoxyphenyl)-1,6-heptadiene-3,5-dione; 3, 1,7-Bis(4-hydroxyphenyl)-1,6-heptadiene-3,5-dione; 4, 1,7-Bis(2-hydroxyphenyl)-1,6-heptadiene-3,5-dione; 5, 1,7-Bis(4-fluorophenyl)-1,6-heptadiene-3,5-dione; 6, 1,7-Bis(2,4,5-trimethoxyphenyl)-1,6-heptadiene-3,5-dione; 7, 1-(3,4-Dihydroxyphenyl)-7-(3-methoxy-4-hydroxyphenyl)-1,6-heptadiene-3,5-dione; 8, 1,7-Bis(3,4-dihydroxyphenyl)-1,6-heptadiene-3,5-dione; 9, 1,7-Bis(4-hydroxy-3,5-dimethoxyphenyl)-1,6-heptadiene-3,5-dione; 10, 1,7-Bis(3,4-dihydroxy-5-methoxyphenyl)-1,6-heptadiene-3,5-dione; 11, 1,7-Bis(4-N,N-dimethylaminophenyl)-1,6-heptadiene-3,5-dione; 12, 1,7-Bis(4-hydroxy-3-methoxyphenyl)heptan-3,5-dione; 13, 1,7-Bis(4-hydroxyphenyl)heptan-3,5-dione; 14, 1,7-Bis(2-methoxy-1-naphthyl)-1,6-heptadiene-3,5-dione; 15, 1,7-Bis(3-bromo-4-hydroxy-5-methoxyphenyl)-1,6-heptadiene-3,5-dione; 16, 1,7-Bis(4-methoxyphenyl)-1,6-heptadiene-3,5-dione; 17, 1,7-Bis(3-methoxy-4-carboxymethoxyphenyl)-1,6-heptadiene-3,5-dione; 18, 1-(4-Hydroxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione; 19, 1-(4-Hydroxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)-heptan-3,5-dione; 20, 1-(3,4-Dihydroxyphenyl)-7-(4-hydroxyphenyl)-1,6-heptadiene-3,5-dione; 21, 1,7-Bis(2-hydroxy-5-methoxyphenyl)-1,6-heptadiene-3,5-dione; 22, 1,7-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)-1,6-heptadiene-3,5-dione; 23, 1,7-bis(3-carboxy-4-hydroxyphenyl)-1,6-heptadiene-3,5-dione; 24, 1,7-Bis(3,4-dimethoxyphenyl)-1,6-heptadiene-3,5-dione; 25, 1,7-Bis(4-carboxymethoxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione disodium salt; 26, 1,7-bis(3-carboxy-4-hydroxyphenyl)-1,6-heptadiene-3,5-dione disodium salt.