The present invention relates to methods of treating, reducing the risk of preventing, or alleviating a symptom of a pulmonary disease or condition, reducing or suppressing inflammation in the lung, and promoting lung repair, by using a compound of formula A:
or a pharmaceutically acceptable salt thereof.
申请人:Chia Tai Tianqing Pharmaceutical Group Co., Ltd.
公开号:US20200347091A1
公开(公告)日:2020-11-05
The present application belongs to the field of pharmaceutical chemistry, and relates to a method for preparing a cholic acid compound. Specifically, the present application provides a process for preparing a compound as shown in formula I, comprising subjecting a compound of formula 2 to an oxidization reaction to obtain a compound of formula 3; attaching a trimethylsilyl group to the compound of formula 3 to obtain a compound of formula 4; reacting the compound of formula 4 with acetaldehyde to obtain a compound of formula 5; subjecting the compound of formula 5 to a catalytic hydrogenation reaction to obtain a compound of formula 6; and converting a cyano group of the compound of formula 6 to a carboxyl group to give the compound of formula I. The preparation method has high yield, requires less purification operations, and is suitable for industrial application.
PREPARATION OF OBETICHOLIC ACID COMPRISING CONTINUOUS FLOW PROCESS STEPS
申请人:ratiopharm GmbH
公开号:EP3287467A1
公开(公告)日:2018-02-28
The present invention relates to a process for the preparation of obeticholic acid or one of its process intermediates, the process comprising one or more continuous flow process steps. Further, the present invention relates to the use of a continuous flow reactor for the preparation of obeticholic acid or one of its process intermediates. In particular, the present invention relates to a process for the preparation of obeticholic acid from 3α-hydroxy-7-keto-5β-cholanic acid (7-KCA) as starting material comprising one or more continuous flow process steps.
Process for Preparing 3a(Beta)-7a(Beta)-Dihydroxy-6a(Beta)-Alkyl-5Beta-Cholanic Acid
申请人:Ferrari Massimo
公开号:US20080214515A1
公开(公告)日:2008-09-04
Process for preparing 3α-7α(β)-di-hydroxy-6α(β)-alkyl-5β-cholanic acid (I) in which R is a linear or branched C
1
-C
5
alkyl and the relative intermediates 3α-hydroxy-6β-alkyl-7-keto-5β-cholanic (VIII) and 3α-hydroxy-6α-alkyl-7-keto-5β-cholanic (IX).
The present invention relates to obeticholic acid:
or a pharmaceutically acceptable salt, solvate or amino acid conjugate thereof. Obeticholic acid is useful for the treatment or prevention of a FXR mediated disease or condition, cardiovascular disease or cholestatic liver disease, and for reducing HDL cholesterol, for lowering triglycerides in a mammal, or for inhibition of fibrosis. The present invention also relates to processes for the synthesis of obeticholic acid.