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. 2016 May 21;21(5):678. doi: 10.3390/molecules21050678
Comp. R1 R2 R3 R4 R5 R6 R7
10 β-OH α-H β-OH β-OH =O β-CH3 (CH2)2COOH
11 =O α-H β-OH β-H α-OH α-CH3 =O
12 β-OH α-H =O β-H =O α-CH3 =O
14 β-OH β-H β-OH β-H α-OH α-CH3 CH2OH