C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
C07J 7/00 (2006.01) C07J 9/00 (2006.01) C12P 33/00 (2006.01)
Patent
CA 2459370
7.alpha.-Hydroxypregn-4-en-3-one-20-carbaldehyde; a process for producing the carbaldehyde; and a process by which 7.alpha.,21-dihydroxy-20-methylpregn-4-en- 3-one having a high purity, which is useful as an intermediate for medicines such as squalamine, can be efficiently produced from the carbaldehyde.
La présente invention concerne un 7.alpha.-hydroxypregn-4-en-3-one-20-carbaldéhyde ; un procédé de production dudit carbaldéhyde ; et un procédé au moyen duquel du 7.alpha., 21-dihydroxy-20-méthylpregn-4-en-3-one présentant une grande pureté, utile en tant qu'intermédiaire pour des médicaments tels que la scalamine, peut être efficacement produit à partir du carbaldéhyde.
Nakano Yoko
Nakazawa Makoto
Ohzono Shigeo
Tsuji Masao
Fetherstonhaugh & Co.
Kuraray Co. Ltd.
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