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. Author manuscript; available in PMC: 2008 Feb 15.
Published in final edited form as: Bioorg Med Chem. 2006 Nov 29;15(4):1749–1770. doi: 10.1016/j.bmc.2006.11.037

Table 2.

Structure and antioxidant activity of the isoflavones and other polyphenols tested

N Structure DPPH IC25, μM X/XO IC25, μM BM cells IC25, nM N Structure DPPH IC25, μM X/XO IC25, μM BM cells IC25, nM
40* graphic file with name nihms17160t1.jpg N.D. N.A. 105 43 graphic file with name nihms17160t2.jpg 33.3 45.8 168
41 graphic file with name nihms17160t3.jpg N.A. N.A. 33 44 graphic file with name nihms17160t4.jpg N.A. N.A. 300
42 graphic file with name nihms17160t5.jpg 61.4 7.7 140 45 graphic file with name nihms17160t6.jpg 349 N.A. 70
46 graphic file with name nihms17160t7.jpg N.D. 16.2 14

OH groups with the lowest O-H bond dissociation energy are shown in bold (*for compound 40, the lowest dissociation energy obtained was for the OH group from CH2OH of the carbohydrate residue). N.A., not active; N.D., not determined