Preparation process of deoxycholeic acid of bear
A technology of ursodeoxycholic acid and chenodeoxycholic acid, which is applied in the field of artificial synthesis of bear bile, can solve the problems of limited sources of bear bile, inability to meet medical needs, and many processing steps
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[0012] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0013] refer to figure 1 , the preparation process of ursodeoxycholic acid comprises: oxidation process A, hydrogenation process B, purification process C. Add chenodeoxycholic acid 1, solvent I 2, and oxidizing agent 3 during oxidation process A, and precipitate solvent I 2 through reaction to form intermediate 4. Enter hydrogenation process B process, mix solvent II 5 and intermediate 4, Add catalyst 6, add nitrogen gas 7 for gas protection during this process, then add hydrogen gas 8 to replace nitrogen gas 7, and combine reaction to generate crude ursodeoxycholic acid 9. Then the purification process C is carried out, the crude ursodeoxycholic acid 9 is completely dissolved with the solvent III 10, and then the purifying agent 11 is added, and the finished ursodeoxycholic acid 12 is produced through a compound reaction. The specific co...
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