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JPS5341233B2 |
A new antibiotic designated as SF-1623 substance exhibiting a useful antibacterial activity against gram-negative bacteria is now produced by cultivating a new strain ATCC 21999 of the known species Streptomyces chartreusis. The SF-1623 ...
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JPS5341232B2 |
7-Amino desacetoxy cephalosporanic acid represented by the general formula, H2N-- ¦ PARALLEL -¦ O¦CH3 COOH is produced according to a process in which a 7-acylamino desacetoxy cephalosporanic acid represented by the general formula, R...
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JPS5339518B2 |
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JPS53118591A |
PURPOSE: To prepare cephamandole by introducing a mandeloyl gp. in place of the amino gp. of 7-cephem cpds. in the presence of the culture matter, the treated matter, etc., of bacterla belonging to Bacillus genus, etc. by using acylation...
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JPS5396390A |
PURPOSE: To prepare 7α-methoxycephalosporin derivs. by enzyme reaction using the culture products of microorganisms.
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JPS5386094A |
PURPOSE: To prepare 7-amino-cephem derivs. by deacylation of glutaryl-amidocephalosporins using microorganism.
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JPS5318595B2 |
Process for the production of a known antibiotic substance, cephemimycin, by cultivation of a newly discovered microorganism Streptomyces jumonjinensis strain No. 3008 according to any method employed for Streptomyces. The antibiotic sub...
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JPS5346992A |
PURPOSE: To prepare the title antibiotic compounds readily by enzymatic acylation in the presence of microorganisms which belong to azotobacters or the enzymes produced from these microorganisms.
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JPS5346993A |
PURPOSE: To prepare the title antibiotic compounds readily by enzymatic acylation in the presence of microorganisms which belong to azotobacters or the enzymes produced from these microorganisms.
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JPS5310156B2 |
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JPS5310157B2 |
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JPS5249071B1 |
A method for improving the yield of 7-(D-5-amino-5-carboxylvaleramido)-3-(carbamoyloxymethyl)-7-
methoxy-3- cephem-4-carboxylic acid by adding to fermentation media an additive selected from glycine, L-phenylalanine, a carbamate or an am...
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JPS5248196B1 |
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JPS52143289A |
PURPOSE: To produce 7-deacylated cephalosporin C by the action of a specific species of Aspergillus or Altanaria upon cephalosporin C.
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JPS5246237B2 |
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JPS52110896A |
PURPOSE: Introduction of 2-thienylacetyl radical to the 7-NH2 group of 7-aminocephalosporanic acid can be effeciently effected by the action of acylose produced by a specific species of Microbacterium.
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JPS52105290A |
PURPOSE: The title substance useful as the material of cephalosporin antibiotics is obtained by cultivation of a mutant of Cephalosporium resistant to surface active quaternary ammonium salts.
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JPS5231436B2 |
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JPS5231035B2 |
Cephlothin is produced from 7-amino cephalosporanic acid and thienylacetic acid ester by enzymatic acylation with acylating enzyme derived from a microorganism belonging to genus Bacillus.
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JPS5230594B2 |
Cephalosporin C can be separated with a high efficiency from a crude aqueous solution containing cephalosporin C such as a culture filtrate of a cephalosporin-producing microorganism by a novel method which comprises contacting the crude...
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JPS5283701A |
PURPOSE: The antibiotic Y-G19ZD2 of the 7-methoxycephalosporin series.
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JPS5283702A |
PURPOSE: The antibiotic Y-G19ZD3 of the 7-methoxycephalosporin series.
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JPS5220552B1 |
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JPS5218276B1 |
1312129 Antibiotic compositions ELI LILLY & CO 4 Aug 1970 [6 Aug 1969] 37490/70 Heading ASE [Also in Division C2] The monoammonium salt of antibiotic A16884 of formula I: may be used in an aqueous spray formulation at a concentration of ...
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JPS5218275B1 |
1,270,448. Metal complexes of cephalosporin C. CIBA-GEIGY A.G. 3 June, 1969 [14 June, 1968], No. 27942/69. Heading C2A. Novel complexes of cephalosporin C with a divalent heavy metal containing 1 mol. of cephalosporin C per 1 atom of the...
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JPS5212199B1 |
1332722 Cephem-4-carboxylic acids BRITOL-MYERS CO 8 Jan 1971 [12 Jan 1970] 1066/71 Headings C2A and C2C A process for the preparation of 3-azidomethyl - 7 - amino - 3 - cephem - 4 - carboxylic acid comprises the consecutive steps of (A) ...
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JPS5238092A |
PURPOSE: 7-(5'-Oxoadipylamido) cephalosporanic acid or 7-(5'-glutarylamide) cephalosporanic acid is produced by enzyme reaction from the fermented broth of cephalosporin C, which is then converted into 7-aminocephalosporanic acid by well...
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JPS5231889A |
PURPOSE: Production of cephalexin by the reaction between specific compounds by the aid of specified microorganism.
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JPS5231890A |
PURPOSE: Production of cephalexin by the reaction between specific compounds in the presence of a specified microorganism.
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JPS527058B1 |
1315177 Pesticides comprising antibiotics ELI LILLY & CO 7 Aug 1970 [12 Aug 1969] 38246/70 Heading ASE [Also in Division C2] Plant-pathogenic bacteria are controlled by applying to the plant before or after infection, an antibacterially ...
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JPS52118B1 |
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JPS51139689A |
PURPOSE: Process for producing cephalosporins using microorganisms which belong to the genus Microbacterium.
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JPS51133488A |
PURPOSE: To obtain penicillins or cephalosporins, that are useful for medicines, antibacterials and other synthetic intermediates, by means of an irreversible reaction of amibe formation being different from the reaction occurred in the ...
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JPS51133294A |
PURPOSE: Penicillins and cephalosporins having hydantoin ring of formula I are new: [where A is a group represented by formula II (R is H, lower alkyl or trilower alkylsilyl, etc.) or a group represented by formula III (X is H, OH, lower...
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JPS51133293A |
PURPOSE: Penicillins and cephalosporins having hydantoin ring of formula I and their salts are new: [where A is a group represented by formula II (R is H, lower alkyl or trilower alkylsilyl, etc.) or a group represented by formula III ( ...
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JPS51125782A |
A cell culture which produces a desired polypeptide is prepared by genetic modification of microorganisms. The process comprises the following steps: a) splitting up molecules of a DNA receptor material obtained from a plasmid which is s...
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JPS51112594A |
PURPOSE: Process for preparing cephalosporin derivatives of the following formula 1 (where X is 7-aminocephalosporanic acid or its salts) or the formula 2, by oxidizing the side-chain acyl groups of cephalosporin C with the enzymes produ...
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JPS5179786A |
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JPS5170886A |
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JPS5168585A |
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JPS5154986A |
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JPS5154578A |
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JPS5143781A |
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JPS519370B1 |
1315177 Pesticides comprising antibiotics ELI LILLY & CO 7 Aug 1970 [12 Aug 1969] 38246/70 Heading ASE [Also in Division C2] Plant-pathogenic bacteria are controlled by applying to the plant before or after infection, an antibacterially ...
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JPS50123887A |
A process for the recovery of cephalosporin C from an aqueous medium, including the steps of treating the medium with a sulphonyl chloride of formula R-SO2Cl, in which R is a substituted or unsubstituted alkyl group having from 4 to 10 c...
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JPS50123885A |
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JPS50101583A |
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JPS50100292A |
Cephalosporin C is recovered from its fermentation broth by in situ formation of N-(p-nitrobenzoyl)cephalosporin C which is extracted therefrom and converted to 7-amino-cephalosporanic acid.
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JPS5095486A |
1480850 Enzymatic hydrolysis on synthesis of cephalosporins SNAMPROGETTI SpA 16 Dec 1974 [20 Dec 1973] 54336/74 Heading C2C Hydrolysis of a cephalosporin produced by increasing the size of the thia ring of penicillin G and/or the synthes...
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JPS5095487A |
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