NO327489B1 - Fremstilling av trijodbensen forbindelser - Google Patents
Fremstilling av trijodbensen forbindelser Download PDFInfo
- Publication number
- NO327489B1 NO327489B1 NO19995675A NO995675A NO327489B1 NO 327489 B1 NO327489 B1 NO 327489B1 NO 19995675 A NO19995675 A NO 19995675A NO 995675 A NO995675 A NO 995675A NO 327489 B1 NO327489 B1 NO 327489B1
- Authority
- NO
- Norway
- Prior art keywords
- added
- temperature
- agent
- range
- amino
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title abstract description 5
- RIWAPWDHHMWTRA-UHFFFAOYSA-N 1,2,3-triiodobenzene Chemical class IC1=CC=CC(I)=C1I RIWAPWDHHMWTRA-UHFFFAOYSA-N 0.000 title description 2
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 25
- -1 iodine halide Chemical class 0.000 claims abstract description 22
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 14
- 239000011630 iodine Substances 0.000 claims abstract description 14
- XFDUHJPVQKIXHO-UHFFFAOYSA-N 3-aminobenzoic acid Chemical class NC1=CC=CC(C(O)=O)=C1 XFDUHJPVQKIXHO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012736 aqueous medium Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 239000012431 aqueous reaction media Substances 0.000 claims abstract description 4
- 150000001412 amines Chemical class 0.000 claims abstract 4
- QZRGKCOWNLSUDK-UHFFFAOYSA-N Iodochlorine Chemical group ICl QZRGKCOWNLSUDK-UHFFFAOYSA-N 0.000 claims description 28
- 238000006192 iodination reaction Methods 0.000 claims description 25
- 230000026045 iodination Effects 0.000 claims description 22
- 239000012429 reaction media Substances 0.000 claims description 11
- XOZGAPXHJKSZCU-UHFFFAOYSA-N 5-amino-1-n,3-n-bis(2,3-dihydroxypropyl)benzene-1,3-dicarboxamide Chemical compound NC1=CC(C(=O)NCC(O)CO)=CC(C(=O)NCC(O)CO)=C1 XOZGAPXHJKSZCU-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- JEZJSNULLBSYHV-UHFFFAOYSA-N 5-amino-2,4,6-triiodobenzene-1,3-dicarboxylic acid Chemical compound NC1=C(I)C(C(O)=O)=C(I)C(C(O)=O)=C1I JEZJSNULLBSYHV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 5
- 239000012336 iodinating agent Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000007792 addition Methods 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- 239000003518 caustics Substances 0.000 description 11
- 239000011541 reaction mixture Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002872 contrast media Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000004811 liquid chromatography Methods 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- GSCPDZHWVNUUFI-UHFFFAOYSA-N 3-aminobenzamide Chemical compound NC(=O)C1=CC=CC(N)=C1 GSCPDZHWVNUUFI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- BCBIXNWEWWQJST-UHFFFAOYSA-N ClICl Chemical class ClICl BCBIXNWEWWQJST-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229940088679 drug related substance Drugs 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229960001025 iohexol Drugs 0.000 description 2
- NTHXOOBQLCIOLC-UHFFFAOYSA-N iohexol Chemical compound OCC(O)CN(C(=O)C)C1=C(I)C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C1I NTHXOOBQLCIOLC-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 125000004916 (C1-C6) alkylcarbonyl group Chemical group 0.000 description 1
- KAEGSAWWVYMWIQ-UHFFFAOYSA-N 5-amino-1-n,3-n-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide Chemical compound NC1=C(I)C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C1I KAEGSAWWVYMWIQ-UHFFFAOYSA-N 0.000 description 1
- UXPIWHPHEGRYLB-UHFFFAOYSA-N 5-aminobenzene-1,3-dicarboxamide Chemical compound NC(=O)C1=CC(N)=CC(C(N)=O)=C1 UXPIWHPHEGRYLB-UHFFFAOYSA-N 0.000 description 1
- KBZFDRWPMZESDI-UHFFFAOYSA-N 5-aminobenzene-1,3-dicarboxylic acid Chemical compound NC1=CC(C(O)=O)=CC(C(O)=O)=C1 KBZFDRWPMZESDI-UHFFFAOYSA-N 0.000 description 1
- HOSGXJWQVBHGLT-UHFFFAOYSA-N 6-hydroxy-3,4-dihydro-1h-quinolin-2-one Chemical group N1C(=O)CCC2=CC(O)=CC=C21 HOSGXJWQVBHGLT-UHFFFAOYSA-N 0.000 description 1
- AMDBBAQNWSUWGN-UHFFFAOYSA-N Ioversol Chemical compound OCCN(C(=O)CO)C1=C(I)C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C1I AMDBBAQNWSUWGN-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- LHAXAXZUTHLWDX-UHFFFAOYSA-N [Na].ICl Chemical compound [Na].ICl LHAXAXZUTHLWDX-UHFFFAOYSA-N 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 125000003368 amide group Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000007862 dimeric product Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940126534 drug product Drugs 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical class 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229960004359 iodixanol Drugs 0.000 description 1
- NBQNWMBBSKPBAY-UHFFFAOYSA-N iodixanol Chemical compound IC=1C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C(I)C=1N(C(=O)C)CC(O)CN(C(C)=O)C1=C(I)C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C1I NBQNWMBBSKPBAY-UHFFFAOYSA-N 0.000 description 1
- 229960004647 iopamidol Drugs 0.000 description 1
- XQZXYNRDCRIARQ-LURJTMIESA-N iopamidol Chemical compound C[C@H](O)C(=O)NC1=C(I)C(C(=O)NC(CO)CO)=C(I)C(C(=O)NC(CO)CO)=C1I XQZXYNRDCRIARQ-LURJTMIESA-N 0.000 description 1
- 229960000824 iopentol Drugs 0.000 description 1
- IUNJANQVIJDFTQ-UHFFFAOYSA-N iopentol Chemical compound COCC(O)CN(C(C)=O)C1=C(I)C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C1I IUNJANQVIJDFTQ-UHFFFAOYSA-N 0.000 description 1
- 229960004537 ioversol Drugs 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000007040 multi-step synthesis reaction Methods 0.000 description 1
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical class CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N perisophthalic acid Natural products OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 238000012306 spectroscopic technique Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000006257 total synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/14—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/12—Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Glass Compositions (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9710725.4A GB9710725D0 (en) | 1997-05-23 | 1997-05-23 | Process |
| PCT/GB1998/001488 WO1998052908A1 (fr) | 1997-05-23 | 1998-05-22 | Preparation de composes de tri-iodo benzene |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO995675D0 NO995675D0 (no) | 1999-11-19 |
| NO995675L NO995675L (no) | 1999-11-19 |
| NO327489B1 true NO327489B1 (no) | 2009-07-13 |
Family
ID=10812987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19995675A NO327489B1 (no) | 1997-05-23 | 1999-11-19 | Fremstilling av trijodbensen forbindelser |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US6274762B1 (fr) |
| EP (1) | EP0984922B1 (fr) |
| JP (1) | JP4039700B2 (fr) |
| KR (1) | KR100544932B1 (fr) |
| CN (1) | CN1152854C (fr) |
| AT (1) | ATE221872T1 (fr) |
| AU (1) | AU7540498A (fr) |
| BR (1) | BR9809658A (fr) |
| CA (1) | CA2290529A1 (fr) |
| CZ (1) | CZ296389B6 (fr) |
| DE (1) | DE69807073T2 (fr) |
| ES (1) | ES2183366T3 (fr) |
| GB (1) | GB9710725D0 (fr) |
| IL (1) | IL133099A0 (fr) |
| NO (1) | NO327489B1 (fr) |
| PT (1) | PT984922E (fr) |
| WO (1) | WO1998052908A1 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355710C (zh) * | 2005-12-15 | 2007-12-19 | 上海交通大学 | 芳烃碘代物的制备方法 |
| EP2243767A1 (fr) * | 2009-04-21 | 2010-10-27 | Bracco Imaging S.p.A | Procédé d'iodation de composés aromatiques |
| US20110021834A1 (en) * | 2009-07-21 | 2011-01-27 | Ge Healthcare As | Continuous process of preparing intermediate for non-ionic x-ray contrast agents |
| US7863484B1 (en) | 2009-07-21 | 2011-01-04 | Ge Healthcare As | Method for reducing aminoisophthalic acid bisamide related impurities in preparation of non-ionic X-ray contrast agents |
| US20110020238A1 (en) * | 2009-07-21 | 2011-01-27 | Ge Healthcare As | Stabilizing aqueous solution of iodine chloride by adding sodium chloride |
| EP2277846A1 (fr) | 2009-07-21 | 2011-01-26 | GE Healthcare AS | Obtention d'iode libre dans la préparation d'un chlorure d'iode aqueux en ajouter de l'iodure de potassium |
| US20110021833A1 (en) * | 2009-07-21 | 2011-01-27 | Ge Healthcare As | Crystallization of an intermediate for synthesizing non-ionic x-ray contrast agents |
| JP5754842B2 (ja) * | 2011-03-02 | 2015-07-29 | 株式会社 東邦アーステック | ｐ−ヨードフェノールの製造方法 |
| CN103086915A (zh) * | 2011-10-31 | 2013-05-08 | 上海海神化学生物科技有限公司 | 制备3,5-二取代-2,4,6-三碘代芳香胺类化合物的碘化方法 |
| JP6140175B2 (ja) * | 2011-10-31 | 2017-05-31 | アイマックス ダイアグノスティック イメージング ホールディング リミテッド | ３，５−二置換−２，４，６−トリヨード芳香族アミン化合物の製造のためのヨウ素化方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3145197A (en) * | 1961-06-26 | 1964-08-18 | Mallinckrodt Chemical Works | 5-acetamido-nu-alkyl-2, 4, 6-trhodoiso-phthalamic acid compounds |
| SE348727B (fr) * | 1969-07-08 | 1972-09-11 | Pharmacia Ab | |
| GB1466852A (en) * | 1973-05-18 | 1977-03-09 | Nyegaard & Co As | Iodination process |
| GB1548594A (en) * | 1976-06-11 | 1979-07-18 | Nyegaard & Co As | Triiodoisophthalic acid amides |
| US4125599A (en) * | 1976-08-19 | 1978-11-14 | Mallinckrodt, Inc. | X-ray contrast agents |
| FR2614299B1 (fr) * | 1987-04-23 | 1989-08-18 | Guerbet Sa | Composes diamino benzeniques iodes, leur procede de preparation et produits de contraste les contenant. |
| US5013865A (en) * | 1988-04-06 | 1991-05-07 | Mallinckrodt, Inc. | Process for the preparation of 2,4,6-triiodo-5-amino-N-alkylisophthalamic acid and 2,4,6-triiodo-5-amino-isophthalamide compounds |
| AU623403B2 (en) * | 1988-04-06 | 1992-05-14 | Mallinckrodt, Inc. | Process for the preparation of 2,4,6-triiodo-5-amino-n-alkylisophthalamic acid |
-
1997
- 1997-05-23 GB GBGB9710725.4A patent/GB9710725D0/en active Pending
-
1998
- 1998-05-22 CN CNB988053209A patent/CN1152854C/zh not_active Expired - Lifetime
- 1998-05-22 ES ES98922944T patent/ES2183366T3/es not_active Expired - Lifetime
- 1998-05-22 PT PT98922944T patent/PT984922E/pt unknown
- 1998-05-22 KR KR1019997010788A patent/KR100544932B1/ko not_active IP Right Cessation
- 1998-05-22 BR BR9809658-3A patent/BR9809658A/pt not_active IP Right Cessation
- 1998-05-22 EP EP98922944A patent/EP0984922B1/fr not_active Expired - Lifetime
- 1998-05-22 CZ CZ0417299A patent/CZ296389B6/cs not_active IP Right Cessation
- 1998-05-22 AT AT98922944T patent/ATE221872T1/de not_active IP Right Cessation
- 1998-05-22 JP JP55013798A patent/JP4039700B2/ja not_active Expired - Lifetime
- 1998-05-22 IL IL13309998A patent/IL133099A0/xx unknown
- 1998-05-22 CA CA002290529A patent/CA2290529A1/fr not_active Abandoned
- 1998-05-22 DE DE69807073T patent/DE69807073T2/de not_active Expired - Lifetime
- 1998-05-22 WO PCT/GB1998/001488 patent/WO1998052908A1/fr active IP Right Grant
- 1998-05-22 AU AU75404/98A patent/AU7540498A/en not_active Abandoned
-
1999
- 1999-11-12 US US09/432,632 patent/US6274762B1/en not_active Expired - Lifetime
- 1999-11-19 NO NO19995675A patent/NO327489B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CZ417299A3 (cs) | 2000-05-17 |
| WO1998052908A1 (fr) | 1998-11-26 |
| BR9809658A (pt) | 2000-07-11 |
| NO995675D0 (no) | 1999-11-19 |
| NO995675L (no) | 1999-11-19 |
| ES2183366T3 (es) | 2003-03-16 |
| US6274762B1 (en) | 2001-08-14 |
| AU7540498A (en) | 1998-12-11 |
| CN1257476A (zh) | 2000-06-21 |
| EP0984922A1 (fr) | 2000-03-15 |
| KR100544932B1 (ko) | 2006-01-24 |
| GB9710725D0 (en) | 1997-07-16 |
| CA2290529A1 (fr) | 1998-11-26 |
| EP0984922B1 (fr) | 2002-08-07 |
| PT984922E (pt) | 2002-12-31 |
| CN1152854C (zh) | 2004-06-09 |
| IL133099A0 (en) | 2001-03-19 |
| JP2001526677A (ja) | 2001-12-18 |
| CZ296389B6 (cs) | 2006-03-15 |
| ATE221872T1 (de) | 2002-08-15 |
| KR20010012824A (ko) | 2001-02-26 |
| DE69807073T2 (de) | 2003-10-09 |
| DE69807073D1 (de) | 2002-09-12 |
| JP4039700B2 (ja) | 2008-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO327489B1 (no) | Fremstilling av trijodbensen forbindelser | |
| AU2013341615B2 (en) | Preparation of intermediates of X-ray contrast agents | |
| USRE38856E1 (en) | Preparation of tri-iodo benzene compounds | |
| US5817861A (en) | Process for the preparation of an intermediate useful in the synthesis of iodinated contrast media | |
| PL193698B1 (pl) | Sposób wytwarzania kwasu N-alkiloacyloaminotrijodofenylokarboksylowego albo pochodnej tego kwasu karboksylowego | |
| US5177261A (en) | Synthesis of ioversol using chloroacetyl chloride | |
| EP0983227B8 (fr) | Preparation de composes benzeniques tri-iodes | |
| IE960350A1 (en) | Process for the preparation of¹5-amino-2,4,6-triiodoisophthalic acid dichloride by¹chlorination with thionyl chloride in the presence of a¹catalyst | |
| KR102128423B1 (ko) | 조영제 이오메프롤의 제조방법 | |
| EP2289870A1 (fr) | Procédé de purification de 5-amino-N,N'-bis(2,3-dihydroxypropyl)-isophthalamide , un intermédiaire pour la synthèse d'agents de contraste à rayon x non ioniques | |
| WO1993016981A1 (fr) | Synthese du ioversol avec un excedent minimal de chlorure d'acetoxyacetyle | |
| EP2277846A1 (fr) | Obtention d'iode libre dans la préparation d'un chlorure d'iode aqueux en ajouter de l'iodure de potassium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |