Apigenin and cirsimaritin, have been in contrast to people of their LY-411575
flavanone counterparts, particularly, naringenin and 5,4_ dihydroxy 6,7
dimethoxyflavanone, respectively, the essential role of the _double bond for
bioactivity became apparent. Other than for epigallocatechin and
gallocatechingallate, the compounds from the flavan 3 ol subclass have been also
only reasonably lively. This highlights the truth that not only the _double bond
but also the ketone perform at C 4 are crucial for the trypanocidal action.