公开(公告)号：EP0055137B1

公开(公告)日：1985-05-22

申请号：EP81306094.4

申请日：1981-12-23

申请人： Takeda Chemical Industries, Ltd.

发明人： Nara, Kiyoshi ,  Katamoto, Kazuyoshi ,  Ohkido, Sadao ,  Yamamoto, Isao ,  Yanome, Hiroshi

IPC分类号： C07D501/12 ,  C07D499/18 ,  C12P35/06

CPC分类号： C12P35/06 ,  C07D499/00

公开(公告)号：EP0055137A2

公开(公告)日：1982-06-30

申请号：EP81306094.4

申请日：1981-12-23

申请人： Takeda Chemical Industries, Ltd.

发明人： Nara, Kiyoshi ,  Katamoto, Kazuyoshi ,  Ohkido, Sadao ,  Yamamoto, Isao ,  Yanome, Hiroshi

IPC分类号： C07D501/12 ,  C07D499/18 ,  C12P35/06

CPC分类号： C12P35/06 ,  C07D499/00

摘要： The present invention relates to a method for concentrating a dilute aqueous solution of a β-lactam antibiotic which is readily susceptible to heat, by subjecting a dilute aqueous solution of a β-lactam antibiotic, said solution containing 2 to 20% (v/v) of a lower alcohol, to concentration by means of a permeable membrane made of poly-(ether/amide) or polybenzimidazolone.

公开(公告)号：EP0055137A3

公开(公告)日：1983-07-20

申请号：EP81306094

申请日：1981-12-23

申请人： Takeda Chemical Industries, Ltd.

发明人： Nara, Kiyoshi ,  Katamoto, Kazuyoshi ,  Ohkido, Sadao ,  Yamamoto, Isao ,  Yanome, Hiroshi

IPC分类号： C07D501/12 ,  C07D499/18 ,  C12P35/06

CPC分类号： C12P35/06 ,  C07D499/00

摘要： The present invention relates to a method for concentrating a dilute aqueous solution of a β-lactam antibiotic which is readily susceptible to heat, by subjecting a dilute aqueous solution of a β-lactam antibiotic, said solution containing 2 to 20% (v/v) of a lower alcohol, to concentration by means of a permeable membrane made of poly-(ether/amide) or polybenzimidazolone.