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JPS4946080B1 |
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JPS4944351B1 |
An enzymatic process for the preparation of aminocyclohexylpenicillin is disclosed. The process involves reacting together 6-aminopenicillanic acid or other penicillins and aminocyclohexyl carboxylic acid, or esters and/or acid addition ...
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JPS4942520B1 |
1,164,457. Esters of 6-aminopenicillanic acid; penicillins; cephalosporins. BRISTOL-MYERS CO. 22 July, 1966 [22 July, 1965], No. 33038/66. Headings C2A and C2C, The invention relates to activated esters of 6-aminopenicillanic acid of for...
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JPS49110688A |
6-Aminopenicillanic acid or salts thereof, obtained by chemical or enzymatic cleavage of benzyl- or phenoxymethylpenicillin, are isolated from the hydrolysis solution by extraction of the phenylacetic acid or phenoxyacetic acid followed ...
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JPS4928432B1 |
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JPS4928434B1 |
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JPS4928433B1 |
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JPS4928435B1 |
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JPS4928436B1 |
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JPS4950183A |
Water-insoluble enzyme preparations are formed from a penicillin acylase enzyme; a water-insoluble absorbent material, preferably a cross-linked acrylate polymer containing free carboxyl groups; a water-soluble dialdehyde, e.g., glutaral...
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JPS4918231B1 |
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JPS4942892A |
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JPS4912098A |
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JPS491560B1 |
A process for the enzymatic production of D-(-)- alpha -aminobenzylpenicillin, i.e., Ampicillin, which is one of the semi-synthetic penicillins useful as an antibiotic, starting from 6-aminopenicillanic acid and a functional derivative o...
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JPS4899393A |
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JPS4838879B1 |
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JPS4838878B1 |
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JPS4833385B1 |
Penicillin-splitting enzymes are produced by culturing penicillin-splitting bacteria e.g. Escherichia coli under aerobic conditions in a nutrient medium substantially free from fermentable carbohydrate to which ammonium phenylacetate is ...
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JPS4833386B1 |
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JPS4861692A |
1387460 Producing 6-aminopenicillanic acid BAYER AG 22 Nov 1972 [23 Nov 1971] 53891/72 Heading C2C 6-Aminopenicillanic acid is produced by N-deacylating penicillin G in aqueous solution at pH 6 to 8 and 20 to 50 C. with a penicillin ...
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JPS4826985A |
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JPS4810237B1 |
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