DE966327C - X-ray contrast media - Google Patents
X-ray contrast mediaInfo
- 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
Links
- 239000002872 contrast media Substances 0.000 title claims description 5
- 229940039231 contrast media Drugs 0.000 title 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229960004050 aminobenzoic acid Drugs 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 125000003368 amide group Chemical group 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- QMQFFHSJUJDRPG-UHFFFAOYSA-N 3-amino-2,4,6-triiodobenzoic acid Chemical compound NC1=C(I)C=C(I)C(C(O)=O)=C1I QMQFFHSJUJDRPG-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/04—X-ray contrast preparations
- A61K49/0433—X-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)
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1063759B (en) * | 1957-09-11 | 1959-08-20 | Bayer Ag | X-ray contrast media |
-
1952
- 1952-11-18 DE DESCH11012A patent/DE966327C/en not_active Expired
Cited By (1)
| 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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