Ursodeoxycholic acid derivatives and methods for producing them

C - Chemistry – Metallurgy – 07 – J

Patent

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C07J 17/00 (2006.01) C07J 9/00 (2006.01) C07J 75/00 (2006.01)

Patent

CA 2237076

Disclosed are ursodeoxycholic acid derivatives having an increased solubility in water, and methods for producing the derivatives. To produce the derivatives, ursodeoxycholic acid is protected at its carboxyl group with a benzyl group, then reacted with tetrabenzyl-acetic acid-oxyglucoside of the following formula (1), and de-benzylated; or ursodeoxycholic acid is protected at its hydroxyl group with a t-butyldimethylsilyl group, then reacted with tetrabenzyl-2-hydroxyethyloxyglucoside of the following formula (2), and de-t-butyldimethylsilylated and de-benzylated.

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