TC Publication, Tema 345U.S. Government Printing Office, 1970 |
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Página 49
... stirred for a period of an hour or so to form the substituted ammonium salt of the desired product . The mixture may then , if desired , be extracted at alkaline pH ( such as pH 8 ; aqueous sodium bicarbonate may be used , for example ...
... stirred for a period of an hour or so to form the substituted ammonium salt of the desired product . The mixture may then , if desired , be extracted at alkaline pH ( such as pH 8 ; aqueous sodium bicarbonate may be used , for example ...
Página 50
... stirring is , of course , ad- visable when more than one phase is present , eg . , solid and liquid or two liquid ... stirring the fermentation mix- ture . If desired , a combination of stirring and the bub bling of air or oxygen can be ...
... stirring is , of course , ad- visable when more than one phase is present , eg . , solid and liquid or two liquid ... stirring the fermentation mix- ture . If desired , a combination of stirring and the bub bling of air or oxygen can be ...
Página 51
... stirred fermenter . The seed mediera contained 8 % w / v . corn steep liquor , 8 10 16 20 25 30 6 % .'v . of dextrin and tap water , the pH being ad- justed to 6.1 before sterilizing the fermenter and its con- tenis . The tark was stirred ...
... stirred fermenter . The seed mediera contained 8 % w / v . corn steep liquor , 8 10 16 20 25 30 6 % .'v . of dextrin and tap water , the pH being ad- justed to 6.1 before sterilizing the fermenter and its con- tenis . The tark was stirred ...
Página 52
... stirred and cooled to about -5 ° C. To this there is added dropwise with continued cooling and stirring a solution of ethy ! chlorocarbonate ( 0.1 mole ) . After approximately ten minutes , the acylating mixture is cooled to about -5 ...
... stirred and cooled to about -5 ° C. To this there is added dropwise with continued cooling and stirring a solution of ethy ! chlorocarbonate ( 0.1 mole ) . After approximately ten minutes , the acylating mixture is cooled to about -5 ...
Página 53
... stirred at 70 0 ° C for 5 minutes . Two and four tenths milliliters ( 0.0255 mole ) of ethyl chloroformate is added ... stirred for 20 minutes . A solution of 4.95 & of 6 - aminopenicillanic acid in 50 ml . of water and 15 The clear solu ...
... stirred at 70 0 ° C for 5 minutes . Two and four tenths milliliters ( 0.0255 mole ) of ethyl chloroformate is added ... stirred for 20 minutes . A solution of 4.95 & of 6 - aminopenicillanic acid in 50 ml . of water and 15 The clear solu ...
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Términos y frases comunes
6-amino 6-aminopenicillanic acid acetone acylating added addition alleged American Home Products amine ampicillin antibiotic antitrust suit aqueous phase aqueous solution assaying Ayerst barium carbonate Beech-Nut Beecham Group Limited benzylpenicillin Bristol Laboratories Bristol-Myers Company butanol Canada carbonate carboxylic acid catalyst chemical chlorocarbonate cillin Clemm complainants Court Department of Justice E. R. Squibb Example fermentation filed filtered free acid Furazolidone Gram-negative Home Products Corporation hydrochloric acid hydrogen hydrogen at room importer of ampicillin investigation Jersey licensees manufacture method of competition million in 1968 mixture obtained Order be issued patent misuse penicillanic acid penicillin percent pharmaceutical phenylacetic acid plant PREPARATION President reaction respondent room temperature sales of ampicillin section 337 proceeding sell ampicillin semi-synthetic penicillins sodium bicarbonate sodium hydroxide sodium salt solvent Squibb and Sons stirred subsidiary Tariff Commission Temporary Exclusion Order tion triethylamine unfair act unfair method United vacuo Virgin Islands washed with water Wyeth Zenith Laboratories