| 摘要 |
<p>A microorganism having a capability of introducing a 7β-hydroxyl group into a 7-unsubstituted bile acid, and a process for preparing a bile acid having a 7β-hydroxyl group characterized by bringing the above microorganism into contact with a 7-unsubstituted bile acid to convert the acid to a bile acid having a 7β-hydroxyl group. The process permits ursodeoxycholic acid useful as a cholagogue and intermediates therefor to be efficiently prepared.</p> |
