Cephalosporanic acid derivatives.
Номер патента: MY100694A
Опубликовано: 17-01-1991
Автор(ы): Abe Yoshio, Aburaki Shimpei, Hoshi Hideaki, Naito Takayuki, OKUMURA Jun
Принадлежит: Bristol Myers Squibb Co
Опубликовано: 17-01-1991
Автор(ы): Abe Yoshio, Aburaki Shimpei, Hoshi Hideaki, Naito Takayuki, OKUMURA Jun
Принадлежит: Bristol Myers Squibb Co
Реферат: THIS INVENTION PROVIDES NOVEL CEPHALOSPORIN INTERMEDIATES. 7- AMINO- 3- (Z)-1-PROPEN-1- Y1] - 3- CEPHEM- 4- CARBOXYLIC ACID AND ESTERS THEREOF HAVING THE GENERAL FORMULA (FORMULA 1) WHEREIN THE CONFIRGURATION OF THE 3- PROPENYL GROUP IS Z SOMETIMES REFERRED TO AS CIS- AND R IS HYDROGEN OR A CONVENTIONAL CARBOXY- PROTECTING GROUP, AND ACID ADDITION SALTS THEREOF AND THE METAL SALTS OF THE FOREGOING SUBTANCE WHEREIN R IS HYDROGEN. THESE COMPOUNDS ARE USEFUL AS INTERMEDIATES FOR PREPARATION OF ORALLY ACTIVE CEPHALOSPORINS.
O-desacetyl-7-n-acylamino-cephalosporanic acids and process for their manufacture
Номер патента: GB1287786A. Автор: . Владелец: Ciba Geigy AG. Дата публикации: 1972-09-06.