IL27980A - Process for the manufacture of 1,2-dihydrobenzodiazepines - Google Patents
Process for the manufacture of 1,2-dihydrobenzodiazepinesInfo
- Publication number
- IL27980A IL27980A IL27980A IL2798067A IL27980A IL 27980 A IL27980 A IL 27980A IL 27980 A IL27980 A IL 27980A IL 2798067 A IL2798067 A IL 2798067A IL 27980 A IL27980 A IL 27980A
- Authority
- IL
- Israel
- Prior art keywords
- formula
- compound
- compounds
- addition salts
- acid addition
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- ZWWWYOKRVNYQHF-UHFFFAOYSA-N 2,3-dihydro-1h-1,2-benzodiazepine Chemical class C1=CCNNC2=CC=CC=C21 ZWWWYOKRVNYQHF-UHFFFAOYSA-N 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 claims description 31
- 239000002253 acid Substances 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 5
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 239000002841 Lewis acid Substances 0.000 claims description 2
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 claims description 2
- 150000007517 lewis acids Chemical class 0.000 claims description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims description 2
- 230000001131 transforming effect Effects 0.000 claims description 2
- LRANPJDWHYRCER-UHFFFAOYSA-N 1,2-diazepine Chemical compound N1C=CC=CC=N1 LRANPJDWHYRCER-UHFFFAOYSA-N 0.000 claims 1
- 241000905957 Channa melasoma Species 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 229940053197 benzodiazepine derivative antiepileptics Drugs 0.000 claims 1
- 125000003310 benzodiazepinyl group Chemical class N1N=C(C=CC2=C1C=CC=C2)* 0.000 claims 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 claims 1
- 150000002466 imines Chemical class 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 18
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 18
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 17
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- -1 7-chloro-2 Chemical class 0.000 description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 5
- 229910052794 bromium Inorganic materials 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 5
- 239000000284 extract Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 3
- 229940049706 benzodiazepine Drugs 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NEUAPOAFUOOCQR-UHFFFAOYSA-N n'-(4-chlorophenyl)-n'-methylethane-1,2-diamine Chemical compound NCCN(C)C1=CC=C(Cl)C=C1 NEUAPOAFUOOCQR-UHFFFAOYSA-N 0.000 description 3
- XCEYKKJMLOFDSS-UHFFFAOYSA-N 4-chloro-n-methylaniline Chemical compound CNC1=CC=C(Cl)C=C1 XCEYKKJMLOFDSS-UHFFFAOYSA-N 0.000 description 2
- YYROPELSRYBVMQ-UHFFFAOYSA-N 4-toluenesulfonyl chloride Chemical compound CC1=CC=C(S(Cl)(=O)=O)C=C1 YYROPELSRYBVMQ-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229940012017 ethylenediamine Drugs 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SVUOLADPCWQTTE-UHFFFAOYSA-N 1h-1,2-benzodiazepine Chemical compound N1N=CC=CC2=CC=CC=C12 SVUOLADPCWQTTE-UHFFFAOYSA-N 0.000 description 1
- QSNSCYSYFYORTR-UHFFFAOYSA-N 4-chloroaniline Chemical compound NC1=CC=C(Cl)C=C1 QSNSCYSYFYORTR-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- YXCZHUMHQDLCQC-UHFFFAOYSA-N N-[2-(4-chloroanilino)ethyl]-N-methylbenzamide Chemical compound C=1C=CC=CC=1C(=O)N(C)CCNC1=CC=C(Cl)C=C1 YXCZHUMHQDLCQC-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- JJCFRYNCJDLXIK-UHFFFAOYSA-N cyproheptadine Chemical compound C1CN(C)CCC1=C1C2=CC=CC=C2C=CC2=CC=CC=C21 JJCFRYNCJDLXIK-UHFFFAOYSA-N 0.000 description 1
- 239000012024 dehydrating agents Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- WTGAIAAIQIPOSI-UHFFFAOYSA-N n-[2-(4-chloro-n-methylanilino)ethyl]benzamide Chemical compound C=1C=C(Cl)C=CC=1N(C)CCNC(=O)C1=CC=CC=C1 WTGAIAAIQIPOSI-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
- C07D243/06—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
- C07D243/10—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
- C07D243/14—1,4-Benzodiazepines; Hydrogenated 1,4-benzodiazepines
- C07D243/16—1,4-Benzodiazepines; Hydrogenated 1,4-benzodiazepines substituted in position 5 by aryl radicals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/165—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55496466A | 1966-06-03 | 1966-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL27980A true IL27980A (en) | 1971-10-20 |
Family
ID=24215433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL27980A IL27980A (en) | 1966-06-03 | 1967-05-14 | Process for the manufacture of 1,2-dihydrobenzodiazepines |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US3501460A (de) |
| BE (1) | BE699047A (de) |
| CH (1) | CH483434A (de) |
| CY (1) | CY507A (de) |
| DE (1) | DE1695188C3 (de) |
| DK (1) | DK116288B (de) |
| ES (1) | ES341311A1 (de) |
| FI (1) | FI47488C (de) |
| GB (1) | GB1153101A (de) |
| GR (1) | GR36820B (de) |
| IL (1) | IL27980A (de) |
| MY (2) | MY6900417A (de) |
| NL (1) | NL6707722A (de) |
| NO (2) | NO136976C (de) |
| OA (1) | OA02443A (de) |
| SE (2) | SE357963B (de) |
| YU (1) | YU32366B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3723414A (en) * | 1970-02-13 | 1973-03-27 | Schering Corp | 1-polyfluoroalkyl benzodiazepines |
| DE2265371C3 (de) * | 1972-05-03 | 1980-12-11 | Kali-Chemie Ag, 3000 Hannover | N-(3-Benzoylaminopropyl)-aniline |
-
1966
- 1966-06-03 US US554964A patent/US3501460A/en not_active Expired - Lifetime
-
1967
- 1967-05-14 IL IL27980A patent/IL27980A/en unknown
- 1967-05-19 CH CH708267A patent/CH483434A/de not_active IP Right Cessation
- 1967-05-23 DE DE1695188A patent/DE1695188C3/de not_active Expired
- 1967-05-26 BE BE699047D patent/BE699047A/xx not_active IP Right Cessation
- 1967-05-30 GR GR670136820A patent/GR36820B/el unknown
- 1967-05-30 SE SE10588/69A patent/SE357963B/xx unknown
- 1967-05-30 SE SE7574/67A patent/SE321683B/xx unknown
- 1967-05-31 FI FI671542A patent/FI47488C/fi active
- 1967-05-31 YU YU1098/67A patent/YU32366B/xx unknown
- 1967-06-01 GB GB25272/67A patent/GB1153101A/en not_active Expired
- 1967-06-02 ES ES341311A patent/ES341311A1/es not_active Expired
- 1967-06-02 NO NO168454A patent/NO136976C/no unknown
- 1967-06-02 DK DK293167AA patent/DK116288B/da unknown
- 1967-06-02 NL NL6707722A patent/NL6707722A/xx unknown
- 1967-06-02 OA OA52956A patent/OA02443A/xx unknown
-
1969
- 1969-03-19 NO NO1136/69A patent/NO137937C/no unknown
- 1969-11-19 CY CY50769A patent/CY507A/xx unknown
- 1969-12-31 MY MY1969417A patent/MY6900417A/xx unknown
-
1970
- 1970-12-31 MY MY197025A patent/MY7000025A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| OA02443A (fr) | 1970-05-05 |
| ES341311A1 (es) | 1968-10-16 |
| DE1695188B2 (de) | 1980-04-17 |
| BE699047A (de) | 1967-11-27 |
| YU109867A (en) | 1974-04-30 |
| CH483434A (de) | 1969-12-31 |
| FI47488C (fi) | 1973-12-10 |
| NO136976B (no) | 1977-08-29 |
| SE357963B (de) | 1973-07-16 |
| GB1153101A (en) | 1969-05-21 |
| CY507A (en) | 1969-11-19 |
| NO137937B (no) | 1978-02-13 |
| NL6707722A (de) | 1967-12-04 |
| US3501460A (en) | 1970-03-17 |
| FI47488B (de) | 1973-08-31 |
| NO136976C (no) | 1977-12-07 |
| GR36820B (el) | 1969-03-12 |
| SE321683B (de) | 1970-03-16 |
| NO137937C (no) | 1978-05-24 |
| DE1695188A1 (de) | 1971-04-08 |
| DK116288B (da) | 1969-12-29 |
| MY7000025A (en) | 1970-12-31 |
| YU32366B (en) | 1974-10-31 |
| MY6900417A (en) | 1969-12-31 |
| DE1695188C3 (de) | 1980-12-11 |
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| US3658793A (en) | 6-amino-5-aza- and -5 7-diaza-azulenes and process for the production thereof |