发明名称 |
Process for the electrochemical synthesis of N-acetylcysteine from cystine |
摘要 |
PCT No. PCT/ES97/00113 Sec. 371 Date Jan. 12, 1999 Sec. 102(e) Date Jan. 12, 1999 PCT Filed May 7, 1997 PCT Pub. No. WO97/42358 PCT Pub. Date Nov. 13, 1997The process comprises: (A) obtainment of N-acetyl-cysteine from L-cystine, by means of the following steps: (i) acetylation of L-cystine to produce N-acetyl-cystine; (ii) electroreduction and desalination by electrodialysis of the N-acetyl-cystine thus produced to give N-acetyl-cysteine; or (B) obtainment of N-acetyl-cysteine from L-cystine, by means of the following steps: (i) acetylation and desalination of L-cystine to produce N-acetyl-cystine; (ii) electroreduction of N-acetyl-cystine which may or may not come from the preceding step (i) to produce N-acetyl-cysteine; (C) obtainment of N-acetyl-cysteine from L-cystine by means of the following steps: (i) electroreduction of L-cystine to produce L-cysteine; (ii) acetylation and desalination by electrodialysis of L-cysteine, which may or may not come from the preceding step (i) to produce N-acetyl-cysteine. The N-acetyl-cysteine thus obtained has important uses in the pharmaceutical sector.
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申请公布号 |
US6159352(A) |
申请公布日期 |
2000.12.12 |
申请号 |
US19990180385 |
申请日期 |
1999.01.12 |
申请人 |
UNIVERSIDAD DE ALICANTE |
发明人 |
RIERA, ANTONIO ALDAZ;LEGUEY, VICENTE MONTIEL;GARCIA, VICENTE GARCIA;GARCIA, JOSEGONZALEZ |
分类号 |
B01D61/44;C07C319/06;C07C319/12;C07C319/22;C07C323/59;C25B3/04;(IPC1-7):C25B3/04 |
主分类号 |
B01D61/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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