a 3-oxo-Delta(1)-steroid + AH2 => a 3-oxosteroid + A
a 3-oxo-delta(1)-steroid + ah2 => a 3-oxosteroid + a
a 3-oxo-Delta(1)-steroid + AH2 => a 3-oxosteroid + A
a 3-oxo-delta(1)-steroid + ah2 => a 3-oxosteroid + a