DE966327C - X-ray contrast media - Google Patents

X-ray contrast media

Info

Publication number
DE966327C
DE966327C DESCH11012A DESC011012A DE966327C DE 966327 C DE966327 C DE 966327C DE SCH11012 A DESCH11012 A DE SCH11012A DE SC011012 A DESC011012 A DE SC011012A DE 966327 C DE966327 C DE 966327C
Authority
DE
Germany
Prior art keywords
ray contrast
main patent
carboxyl groups
radiologist
contrast media
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DESCH11012A
Other languages
German (de)
Inventor
Dr Hans Priewe
Dr Rudi Rutkowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Pharma AG
Original Assignee
Schering AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schering AG filed Critical Schering AG
Priority to DESCH11012A priority Critical patent/DE966327C/en
Application granted granted Critical
Publication of DE966327C publication Critical patent/DE966327C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/04X-ray contrast preparations
    • A61K49/0433X-ray contrast preparations containing an organic halogenated X-ray contrast-enhancing agent

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Röntgenkontrastmittel Zusatz zum Patent 962 545 In dem Hauptpatent 962 545 ist die Verwendung gewisser N-Acylderivate der 2,4,6-Trijod-3-aminobenzoesäure als Röntgenkontrastmittel unter Schutz gestellt. Es handelt sich hierbei um Verbindungen der allgemeinen Formel: worin Z den Acylrest einer mehrbasischen Carbonsäure und Y die Hydroxylgruppe oder eine Alkoxygruppe oder eine unsubstituierte, mono- oder disubstituierte Amidgruppe bedeutet. (Als bevorzugtes Beispiel für eine monosubstituierte Amidgruppe kommt dort Y in der Bedeutung in Frage). Im Hauptpatent ist auch bereits dargelegt, daß die Erschließung der genannten bisher unbekannten Verbindungsgruppe für die Verwendungszwecke des Röntgenologen, auch bei Berücksichtigung der bereits bekannten gleichsinnigen Verwendung anderer im Xern jodierter aromatischer Verbindungen, eine Bereicherung der Technik darstellt.X-ray contrast agent Addendum to patent 962 545 The main patent 962 545 protects the use of certain N-acyl derivatives of 2,4,6-triiodo-3-aminobenzoic acid as X-ray contrast agents. These are compounds of the general formula: where Z is the acyl radical of a polybasic carboxylic acid and Y is the hydroxyl group or an alkoxy group or an unsubstituted, mono- or disubstituted amide group. (As a preferred example of a monosubstituted amide group, Y is used there in question). The main patent also states that the development of the previously unknown group of compounds mentioned for the purposes of the radiologist, also taking into account the already known similar use of other aromatic compounds iodinated in the xernate, represents an enrichment of the technology.

In Erweiterung des Erfindungsgedankens des Hauptpatents wurde nun gefunden, daß die Anwendbarkeit der von mehrwertigen Carbonsäuren abgeleiteten N-Acylderivate der 2, 4, 6-Trijod-3-aminobenzoesäure als Röntgenkontrastmittel nicht auf die Verbindungen obiger Formel begrenzt ist, da sich zeigte, daß bei einer derartigen Verwendung in Spezialfällen die kernständigen Carboxylgruppen in obiger Formel - sämtlich oder teilweise - neben oder an Stelle der N-seitenkettenständigen Carboxylgruppe mit Vorteil auch funktionell abgewandelt sein können. An Stelle von - COOH in obigen Formelbildern kann also -CO#R stehen, wobei R vorzugsweise die oben neben Hydroxyl für Y angegebenen Bedeutungen haben mag. In expansion of the inventive concept of the main patent was now found that the applicability of the polybasic carboxylic acids derived N-acyl derivatives the 2, 4, 6-triiodo-3-aminobenzoic acid as an X-ray contrast medium does not affect the compounds of the above formula is limited as it has been found that when used in this way in special cases the nuclear carboxyl groups in the above formula - all or partially - in addition to or in place of the N-side chain carboxyl group with Advantage can also be modified functionally. Instead of - COOH in above Formulas can therefore be -CO # R, where R is preferably the one above in addition to hydroxyl may have the meanings given for Y.

Doch soll erfindungsgemäß der Begriff der funktionellen Abwandlung der keruständigen Carboxylgruppen keineswegs nur so eng umgrenzt sein, sondern vielmehr gewisse naheliegende Abwandlungen von R mitumfassen, die sich aus der Wahl spezieller Alkylreste für die Alkoxy- oder die substituierte Amidgruppe ergeben, wie R in der Bedeutung -O # CH2 # CH2 # NH2 bzw. According to the invention, however, the concept of functional modification is intended of the carboxyl groups in the core must by no means only be so narrowly defined, but rather include certain obvious variations of R resulting from the choice of particular Alkyl radicals for the alkoxy or the substituted amide group result, such as R in the Meaning -O # CH2 # CH2 # NH2 or

-O # CH2 # CH2 # N(CH3)2 oder -NH # CH2CH2 # OH bzw. -NH # CH2 # CH2OAc oder -NH # CH2 # COOH bzw. -NH # CH2 # COOCH3 u. dgl.-O # CH2 # CH2 # N (CH3) 2 or -NH # CH2CH2 # OH or -NH # CH2 # CH2OAc or -NH # CH2 # COOH or -NH # CH2 # COOCH3 and the like.

Üie Herstellung der neuen Verbindungen von der allgemeinen Formel kann nach üblichen Methoden der organischen Synthese erfolgen.The preparation of the new compounds of the general formula can be carried out by customary methods of organic synthesis.

Claims (1)

Durch die Verwendung erfindungsgemäß in den kern ständigen Carboxylgruppen funktionell abgewandelter Abkömmlinge der vom Hauptpatent erfaßten Verbindungsgruppe für die Zwecke des Röntgenologen wird die durch das Hauptpatent erreichte Bereicherung der Technik noch erheblich ausgeweitet, da die beanspruchten Verbindungen dem Röntgenologen zusätzliche Möglichkeiten der Anpassung an ganz spezielle Verwendungszwecke eröffnen. Through the use according to the invention in the core carboxyl groups functionally modified descendants of the group of compounds covered by the main patent the enrichment achieved by the main patent is for the purposes of the radiologist the technology is still considerably expanded, since the claimed connections are available to the radiologist open up additional possibilities for adaptation to very special purposes. P A T E N T A N S P R U C H: Abgeändertes Röntgenkontrastmittel gemäß Patent 962 545, gekennzeichnet durch die Verwendung analoger N-Acyl-Derivate der 2, 4, 6-Trijod-3-aminobenzoesäure wie im Hauptpatent, deren kernständige Carboxylgruppen jedoch sämtlich oder teilweise funktionell abgewandelt sind. P A T E N T A N S P R U C H: Modified X-ray contrast medium according to Patent 962 545, characterized by the use of analogous N-acyl derivatives of 2, 4, 6-triiodo-3-aminobenzoic acid as in the main patent, its nuclear carboxyl groups however, all or some of them are functionally modified.
DESCH11012A 1952-11-18 1952-11-18 X-ray contrast media Expired DE966327C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH11012A DE966327C (en) 1952-11-18 1952-11-18 X-ray contrast media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH11012A DE966327C (en) 1952-11-18 1952-11-18 X-ray contrast media

Publications (1)

Publication Number Publication Date
DE966327C true DE966327C (en) 1957-07-25

Family

ID=7426412

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH11012A Expired DE966327C (en) 1952-11-18 1952-11-18 X-ray contrast media

Country Status (1)

Country Link
DE (1) DE966327C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063759B (en) * 1957-09-11 1959-08-20 Bayer Ag X-ray contrast media

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063759B (en) * 1957-09-11 1959-08-20 Bayer Ag X-ray contrast media

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