Suggested Reaction 1.14.11.-

Left

3-Oxo-13,17-secoandrost-4-ene-17,13alpha-lactone
+H2O
+CO2
+Butanedionic acid

Right

4-Androstene-3,17-dione
+O2
+2-Ketoglutaric acid

[BiSSCat | GREP ]