R00202


4α-methyl-5α-cholesta-8,24-dien-3β-ol
4α-methyl-5α-cholesta-8,24-dien-3β-ol
H<SUP>+</SUP>
H+
NADPH
NADPH
oxygen
oxygen
H<sub>2</sub>O
H2O
NADP<sup>+</sup>
NADP+
zymosterol intermediate 1a
zymosterol intermediate 1a