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. 2015 Jul 21;20(7):13165–13204. doi: 10.3390/molecules200713165
R1 R2 R3 R4 R5
1 H H H H H
2 OH H H H H
3 H OH H H H
4 H H OH H H
5 H H H OH H
6 H H H H OH
7 OMe H H H H
8 H OMe H H H
9 H H OMe H H
10 H H H OMe H