. 2014 Oct 30;19(11):17478–17535. doi: 10.3390/molecules191117478
© 2014 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
Cpd | R1 | R2 | R3 |
---|---|---|---|
140 | =O | =O | β-OH |
141 | β-OH | α-OH | =O |