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53 2 Vol. 53 No. 2
2023 4 Apr 2023

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121V12*ׄ1 (1. 㽭|ӯˎI(y)޹˾㽭 3123692. 㽭ˎI(y)޹˾㽭 312369
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One-step Synthesis of Cefoxitin Sodium Key Intermediate 7--Methoxy-3-deacetyl-cefothiophene Benzathine
ZHANG Yi-zhong1,2, WANG Jin-long1, HOU Zhong-ke1,2*, WANG Zhao-gang1 (1.Zhejiang Dongying Pharmaceutical Co., Ltd., Shangyu 312369, China; 2.Zhejiang Guobang Pharmaceutical Co., Ltd., Shangyu 312369, China)
AbstractThe one-step synthesis of the key intermediate of cefoxitin sodium 7--methoxy-3-deacetyl- cefothiophene benzathine was studied. Using cefalotin acid as the raw material, conduct 7--methoxidation and 3-position deacetylation, without taking out the intermediate, and directly reacting with DBED in solution state to obtain the product. The process is simplified, the yield is improved, and the three wastes are reduced, which has a prospect of industrial application.
Key wordscefalotin acid; 7--methoxy-3-deacetyl-cefothiophene benzathine; one-step synthesis; cefoxitin sodium
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ոڣ2023-03-28
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