公开(公告)号：DK1567516T3

公开(公告)日：2006-10-09

申请号：DK03779948

申请日：2003-11-17

Applicant: BASF AG

Inventor： MAIER ULRIKE ,  KLATT MARTIN JOCHEN

IPC: C07D339/04 ,  A61K31/385 ,  A61P5/50

Abstract: The invention relates to a process for purifying lipoic acid, which comprises adding to a solution of lipoic acid at least 0.1 times the amount of an adsorbent, based on the mass of lipoic acid to be purified, and subsequently removing the adsorbent. It is possible in this way to provide racemic or nonracemic lipoic acid with an oligomer content below 1% by weight, for example from 0.1 to 1% by weight.

公开(公告)号：DE10255242A1

公开(公告)日：2004-06-03

申请号：DE10255242

申请日：2002-11-26

Applicant: BASF AG

Inventor： MAIER ULRIKE ,  KLATT MARTIN JOCHEN

IPC: A61P5/50 ,  C07D339/04 ,  B01J20/10 ,  A23L1/30 ,  A61K31/385

Abstract: The invention relates to a process for purifying lipoic acid, which comprises adding to a solution of lipoic acid at least 0.1 times the amount of an adsorbent, based on the mass of lipoic acid to be purified, and subsequently removing the adsorbent. It is possible in this way to provide racemic or nonracemic lipoic acid with an oligomer content below 1% by weight, for example from 0.1 to 1% by weight.

公开(公告)号：AT328878T

公开(公告)日：2006-06-15

申请号：AT03779948

申请日：2003-11-17

Applicant: BASF AG

Inventor： MAIER ULRIKE ,  KLATT MARTIN JOCHEN

IPC: A61P5/50 ,  C07D339/04 ,  A61K31/385

Abstract: The invention relates to a process for purifying lipoic acid, which comprises adding to a solution of lipoic acid at least 0.1 times the amount of an adsorbent, based on the mass of lipoic acid to be purified, and subsequently removing the adsorbent. It is possible in this way to provide racemic or nonracemic lipoic acid with an oligomer content below 1% by weight, for example from 0.1 to 1% by weight.

公开(公告)号：AU2003288079A1

公开(公告)日：2004-06-18

申请号：AU2003288079

申请日：2003-11-17

Applicant: BASF AG

Inventor： KLATT MARTIN JOCHEN ,  MAIER ULRIKE

IPC: A61P5/50 ,  C07D339/04 ,  A61K31/385

Abstract: The invention relates to a process for purifying lipoic acid, which comprises adding to a solution of lipoic acid at least 0.1 times the amount of an adsorbent, based on the mass of lipoic acid to be purified, and subsequently removing the adsorbent. It is possible in this way to provide racemic or nonracemic lipoic acid with an oligomer content below 1% by weight, for example from 0.1 to 1% by weight.

公开(公告)号：ES2266885T3

公开(公告)日：2007-03-01

申请号：ES03779948

申请日：2003-11-17

Applicant: BASF AG

Inventor： MAIER ULRIKE ,  KLATT MARTIN JOCHEN

IPC: C07D339/04 ,  A61K31/385 ,  A61P5/50

Abstract: Procedimiento para la purificación del ácido lipoico, caracterizado porque se combina una solución del ácido lipoico con una cantidad de un agente de adsorción, que corresponde a 0, 1 veces la masa del ácido lipoico a se purificado y, a continuación se separa el agente de adsorción.

公开(公告)号：DE50303744D1

公开(公告)日：2006-07-20

申请号：DE50303744

申请日：2003-11-17

Applicant: BASF AG

Inventor： MAIER ULRIKE ,  KLATT MARTIN JOCHEN

IPC: C07D339/04 ,  A61K31/385 ,  A61P5/50

Abstract: The invention relates to a process for purifying lipoic acid, which comprises adding to a solution of lipoic acid at least 0.1 times the amount of an adsorbent, based on the mass of lipoic acid to be purified, and subsequently removing the adsorbent. It is possible in this way to provide racemic or nonracemic lipoic acid with an oligomer content below 1% by weight, for example from 0.1 to 1% by weight.

公开(公告)号：DE10255242A9

公开(公告)日：2004-12-23

申请号：DE10255242

申请日：2002-11-26

Applicant: BASF AG

Inventor： MAIER ULRIKE ,  KLATT MARTIN JOCHEN

IPC: A61P5/50 ,  C07D339/04 ,  B01J20/10 ,  A23L1/30 ,  A61K31/385

Abstract: The invention relates to a process for purifying lipoic acid, which comprises adding to a solution of lipoic acid at least 0.1 times the amount of an adsorbent, based on the mass of lipoic acid to be purified, and subsequently removing the adsorbent. It is possible in this way to provide racemic or nonracemic lipoic acid with an oligomer content below 1% by weight, for example from 0.1 to 1% by weight.