O-acetyl-15alpha-stemmadenine + O2 <=> precondylocarpine acetate + H2O2
o-acetyl-15alpha-stemmadenine + o2 <=> precondylocarpine acetate + h2o2
O-acetyl-15alpha-stemmadenine + O2 <=> precondylocarpine acetate + H2O2
o-acetyl-15alpha-stemmadenine + o2 <=> precondylocarpine acetate + h2o2