ACTIVE CARBON FILTER AS AN OXIDATION INHIBITOR FOR PROSTANE DERIVATIVES

Title:

ACTIVE CARBON FILTER AS AN OXIDATION INHIBITOR FOR PROSTANE DERIVATIVES

Document Type and Number:

WIPO Patent Application WO1999067212

Kind Code:

A3

Abstract:

The invention relates to the use of an oxidation inhibitor, i.e. active carbon, for ambient air in industrial manufacturing, especially in the processing of prostane derivatives, whereby the oxidation inhibitor removes ozone from the process air before contact with said prostane derivatives. The concentration of decomposition products is reduced.

Inventors:

WAGNER TORSTEN (DE)
WESSEL MARTIN (DE)
LIPP RALPH (DE)
IFFERT BERND (DE)
MICHEL HEINRICH (DE)
WESTERMANN JUERGEN (DE)
DAHL HELMUT (DE)
SKUBALLA WERNER (DE)

Application Number:

PCT/EP1999/004278

Publication Date:

March 30, 2000

Filing Date:

June 22, 1999

Export Citation:

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Assignee:

SCHERING AG (DE)
WAGNER TORSTEN (DE)
WESSEL MARTIN (DE)
LIPP RALPH (DE)
IFFERT BERND (DE)
MICHEL HEINRICH (DE)
WESTERMANN JUERGEN (DE)
DAHL HELMUT (DE)
SKUBALLA WERNER (DE)

International Classes:

A61K9/16; A61K31/5575; A61K31/557; A61K31/5578; A61K31/5585; C07C59/46; C07C405/00; C08B37/00; (IPC1-7): C07C405/00; A61K31/557

Domestic Patent References:

WO1987005294A1	1987-09-11
WO1988007037A1	1988-09-22
WO1999043303A1	1999-09-02

Foreign References:

DE3816801A1	1989-11-23
EP0055208A2	1982-06-30
EP0369463A2	1990-05-23

Other References:

STEINER T. ET AL: "A side chain of diastereomeric iloprost protudes from the cage in the complex with cyclomaltoheptaose (b-cyclodextrin): cristal structure of (b-cyclodextrin)2 iloprost. 20.5 H2O", CARBOHYDRATE RESEARCH, vol. 192, 1989, pages 43 - 49, XP000867417

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