Figure 2:
Structure of 12-oxo (6-7) and 12-oxa (8) functionalized active Brs analogs bearing a cholanic acid skeleton and 12-oxa and 11-oxa C-functionalized
(12- 14)
, 11-oxo-12β-hydroxy
(15)
and 11-oxo-12β-acetoxy
(16)
deoxycholic acid derivative.