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Priority to KR7400122ApriorityCriticalpatent/KR790000338B1/en
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
α-sulfobenzylpenicillins(I) and its salts, useful as antibacterial agent against gram-neg. as well as gram-pos. bacteria, including pseudomonas and penicillin G-resistant strain, were prepd. by converting RCH2O3 SCHPhCOR1(II, R= branched alkyl group of from 4 to 14 carbon atom, R1=OH) into I(R1=Cl), which was then reacted with either silylated 6-aminopenicillanic acid or its Na salt. The product was isolated by treatment with NaOH soln.
KR7400122A1974-01-011974-01-01Process for preparation of penicillin derivatives
KR790000338B1
(en)
Process for preparing 7-(alpha-hydroxy-alpha-phenyl)acetamido-3-(1-methyl-1h-tetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid and derivatives thereof
3-ACETOXY-9B-11B-EPOXY-PREGNA-TRIENES AND DIENES AND PROCESS FOR THE PREPARATION OF 6A-HALOGENO-PREGNA-1,4-DIENE-3 ONES AND OF 6A HALOGENO-PREGNA-4-ENE-3-ONES CORRESPONDENTS
Method of preparation of derivatives of 7-(2-(2-aminothiarolyl-4)-2-alkoxyiminoacetamido)-3-thiomethyl-3 cefem-4-carbonic acid in the form of sin-isomers.