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. 2015 Jul 21;20(7):13165–13204. doi: 10.3390/molecules200713165
R1 R2 R3 R4 R5 R6 R7 R8
136 OH OMe OMe OMe OMe H H H
137 OH OMe OMe OMe H H OMe H
138 OH H OMe OMe H H OMe OMe
139 OH H OMe H OMe OMe OMe H
140 OH H OMe H OMe H OMe OMe
141 OH H OMe OMe H H OH OMe
142 OH H OH OMe OMe H H OH
143 OH H OH H H OH OMe OMe