53603-94-4
(22E)-3α,5α-cyclo-6β-methoxystigmast-22-ene
→
51231-24-4
(20S)-(6β-Methoxy-20-methyl-3α,5-cyclo-5α-pregnan-21-ol)-p-toluolsulfonat
77058-74-3
(24S)-24,25-环氧胆固醇