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Patent / Jan 01, 1966

Tetracycline process

Authors:

Ivan Villax

Source:

BE 658387

A newly isolated strain of Streptomyces lusitanus var tetracyclini NCIB 9500 produces tetracycline with no co-production of chlortetracycline in the presence of Cl-. Thus, in a 6000-1. fermentor, with corn-steep medium contg. 1.5 g. NH4Cl/l. the strain produces 11.1 g. tetracycline/l. and no detectable amt. of chlortetracycline.

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Process for the manufacture of iohexol by the alkylation of 5-acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide with 1-chloro-2,3-propanediol using 2-(2-methoxyethoxy)ethanol as the reaction solvent

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.alpha.-Deoxytetracyclines

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Process for simultaneous recovery of precious metals and tertiary phosphine from spent catalysts using tellurium

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Knowledge Center

Tetracycline process

Also in the Knowledge Center

Process for the manufacture of iohexol by the alkylation of 5-acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide with 1-chloro-2,3-propanediol using 2-(2-methoxyethoxy)ethanol as the reaction solvent

.alpha.-Deoxytetracyclines

Process for simultaneous recovery of precious metals and tertiary phosphine from spent catalysts using tellurium

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