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公开(公告)号：KR790000925B1
公开(公告)日：1979-07-31
申请号：KR750000994
申请日：1975-05-08
Applicant: GLAXO LAB LTD
Inventor： MARTIN G D , COWLEY B R
Abstract: α-Aminoacylpenicillins were manufd. from 6-aminopenicillanic acid (6-APA) by a modified method. The suspension of 6-APA in chlorinated hydrocarbon solvent contg. PH 10 tri(low alkyl) amine was dissolved by stirring for 1hr at 25≦̸C and neutralized with N,N-dimethylacetamide HCl at 0≦̸C. The neutralized soln. was contacted to org. solvent dissolving the anhydride mix. of low alkoxy formic acid and N-protected deriv. of amino acid to give α-aminoacylpenicillins.
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