A Facile Synthesis of 4-(3β -Methoxy-5α-androstan-17β-YL)-3-pyrrolin-2-one
摘要:
The title compound was prepared in 4 steps from 3beta-methoxy-21-hydroxy-5alpha-pregnan-20-one (1). The required intermediate (4) was obtained using lithium enolate derived from t-butyl acetate. Interesting enough, p-tosyl chloride in pyridine quantitatively converted compound 1 into the alpha-chloro ketone derivative (2).
A Facile Synthesis of 4-(3β -Methoxy-5α-androstan-17β-YL)-3-pyrrolin-2-one
摘要:
The title compound was prepared in 4 steps from 3beta-methoxy-21-hydroxy-5alpha-pregnan-20-one (1). The required intermediate (4) was obtained using lithium enolate derived from t-butyl acetate. Interesting enough, p-tosyl chloride in pyridine quantitatively converted compound 1 into the alpha-chloro ketone derivative (2).