7α-hydroxy-pregn-4-en-3-one-20-carbaldehyde, process...

Details 7α-hydroxy-pregn-4-en-3-one-20-carbaldehyde, process... 7α-hydroxy-pregn-4-en-3-one-20-carbaldehyde, process...

2006-12-26

2006-12-26

Badio, Barbara P. (Department: 1617)

Organic compounds -- part of the class 532-570 series

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

Reexamination Certificate

active

07153988

ABSTRACT:
7α-Hydroxy-pregn-4-en-3-one-20-carbaldehyde, a production method thereof and a method for producing 7α,21 -dihydroxy-20-methyl-pregn-4-en-3-one, which is useful as a synthetic intermediate for pharmaceuticals such as squalamine and the like, efficiently at high purity from the carbaldehyde.

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