US2019077826A1PendingUtilityA1

Methods for preparing deoxycholic acid

Assignee: NORATECH PHARMACEUTICALS INCPriority: Apr 14, 2015Filed: Nov 8, 2018Published: Mar 14, 2019

Est. expiryApr 14, 2035(~8.8 yrs left)· nominal 20-yr term from priority

Inventors:Cheng-Gang Lin Li Gui Pan Chen Zhi-Xuan Wang Tong-Wei Guan Yuan Yin Yu Lu

C07J 21/008C07J 1/0011C07J 13/007C07J 9/005

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Abstract

The present invention discloses method for preparing deoxycholic acid (DCA) or an ester thereof or a pharmaceutically acceptable salt thereof. Said compounds may be applied to remove a fat deposition.

Claims

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What is claimed is: 
     
         1 . An intermediate compound selected from the group consisting of:
 (Z) -3α-benzoxy-5β-pregna-9 (11), 17 (20)-diene (1);   (E) -3α-benzoxy-5β-cholo-9 (11), 16-diene-24-acid methyl ester(2);   3α-benzoxy-5β-cholo-9(11)-alkene-24-acid methyl ester(3);   3α-benzoxy-5β-cholo-9(11) -en-12-ketone-24-carboxylate(4);   3α-benzoxy-5β-cholane-12-ketone-24-acid methyl ester(5);   3α-benzoxy-5β-cholo-9(11)-en-12-hydroxy-24-acid methyl ester(5a);   3α-benzoxy-5β-cholane-12β-hydroxy-24-acid methyl ester(5b);   3α-benzoxy-5β-cholane-12α-hydroxy-24-acid methyl ester(6); and   5β-androstane-9(11)-alkene-17-(1,3-dioxolanyl)-3-ketone(1.4).

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