CH505138A - Procédé de préparation de benzodiazèpines - Google Patents
Procédé de préparation de benzodiazèpinesInfo
- Publication number
- CH505138A CH505138A CH1592169A CH1592169A CH505138A CH 505138 A CH505138 A CH 505138A CH 1592169 A CH1592169 A CH 1592169A CH 1592169 A CH1592169 A CH 1592169A CH 505138 A CH505138 A CH 505138A
- Authority
- CH
- Switzerland
- Prior art keywords
- lower alkyl
- chloro
- benzodiazepin
- group
- mixture
- Prior art date
Links
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 37
- -1 CO2-alkyl CONH2 Chemical group 0.000 claims abstract description 28
- 229940049706 benzodiazepine Drugs 0.000 claims abstract description 17
- 125000002252 acyl group Chemical group 0.000 claims abstract description 6
- 125000003118 aryl group Chemical group 0.000 claims abstract description 6
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 3
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 27
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 27
- 239000002904 solvent Substances 0.000 claims description 21
- 238000010992 reflux Methods 0.000 claims description 20
- SVUOLADPCWQTTE-UHFFFAOYSA-N 1h-1,2-benzodiazepine Chemical compound N1N=CC=CC2=CC=CC=C12 SVUOLADPCWQTTE-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 239000012965 benzophenone Substances 0.000 claims description 7
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 5
- 125000004442 acylamino group Chemical group 0.000 claims description 3
- 125000004423 acyloxy group Chemical group 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims description 3
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 claims description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical group O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 2
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000007363 ring formation reaction Methods 0.000 claims 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract description 10
- 150000001557 benzodiazepines Chemical class 0.000 abstract description 5
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 abstract description 5
- 125000003710 aryl alkyl group Chemical group 0.000 abstract description 3
- 230000001430 anti-depressive effect Effects 0.000 abstract description 2
- 239000000935 antidepressant agent Substances 0.000 abstract description 2
- 229940005513 antidepressants Drugs 0.000 abstract description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- XAKBSHICSHRJCL-UHFFFAOYSA-N [CH2]C(=O)C1=CC=CC=C1 Chemical group [CH2]C(=O)C1=CC=CC=C1 XAKBSHICSHRJCL-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 abstract 1
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 150000002148 esters Chemical group 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 87
- 239000000047 product Substances 0.000 description 36
- 239000000203 mixture Substances 0.000 description 34
- 239000000155 melt Substances 0.000 description 31
- 239000011541 reaction mixture Substances 0.000 description 23
- 238000006243 chemical reaction Methods 0.000 description 22
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 17
- 238000000354 decomposition reaction Methods 0.000 description 13
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 12
- 238000004821 distillation Methods 0.000 description 12
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 11
- 125000004182 2-chlorophenyl group Chemical group [H]C1=C([H])C(Cl)=C(*)C([H])=C1[H] 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 229910000027 potassium carbonate Inorganic materials 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000013067 intermediate product Substances 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- PKSVTEMCGNQIMD-UHFFFAOYSA-N (2-aminophenyl)-(2-chlorophenyl)methanone Chemical compound NC1=CC=CC=C1C(=O)C1=CC=CC=C1Cl PKSVTEMCGNQIMD-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- PEGJZBBHDJDXEP-UHFFFAOYSA-N 1-(2-amino-3-benzoyl-5-chlorophenyl)-2-bromoethanone Chemical compound ClC=1C=C(C(=C(C(=O)C2=CC=CC=C2)C1)N)C(CBr)=O PEGJZBBHDJDXEP-UHFFFAOYSA-N 0.000 description 2
- 125000004198 2-fluorophenyl group Chemical group [H]C1=C([H])C(F)=C(*)C([H])=C1[H] 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 239000007810 chemical reaction solvent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 125000004170 methylsulfonyl group Chemical group [H]C([H])([H])S(*)(=O)=O 0.000 description 2
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 239000002516 radical scavenger Substances 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 2
- 125000004149 thio group Chemical group *S* 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 230000002936 tranquilizing effect Effects 0.000 description 2
- NRAJMXHXQHCBHO-UHFFFAOYSA-N (2-aminophenyl)-(2-fluorophenyl)methanone Chemical compound NC1=CC=CC=C1C(=O)C1=CC=CC=C1F NRAJMXHXQHCBHO-UHFFFAOYSA-N 0.000 description 1
- CKCNELPOXRQRDT-UHFFFAOYSA-N (2-aminophenyl)-(4-nitrophenyl)methanone Chemical compound NC1=CC=CC=C1C(=O)C1=CC=C([N+]([O-])=O)C=C1 CKCNELPOXRQRDT-UHFFFAOYSA-N 0.000 description 1
- MAOBFOXLCJIFLV-UHFFFAOYSA-N (2-aminophenyl)-phenylmethanone Chemical compound NC1=CC=CC=C1C(=O)C1=CC=CC=C1 MAOBFOXLCJIFLV-UHFFFAOYSA-N 0.000 description 1
- ROXAFEIDZVHGFX-UHFFFAOYSA-N 1,3,4,5-tetrahydro-1,4-benzodiazepin-2-one Chemical compound N1C(=O)CNCC2=CC=CC=C21 ROXAFEIDZVHGFX-UHFFFAOYSA-N 0.000 description 1
- USXTZTSZNRIVAG-UHFFFAOYSA-N 1-[2-amino-5-chloro-3-(2-chlorobenzoyl)phenyl]-2-bromoethanone Chemical compound ClC=1C=C(C(=C(C(=O)C2=C(C=CC=C2)Cl)C=1)N)C(CBr)=O USXTZTSZNRIVAG-UHFFFAOYSA-N 0.000 description 1
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000006283 4-chlorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1Cl)C([H])([H])* 0.000 description 1
- CVICEEPAFUYBJG-UHFFFAOYSA-N 5-chloro-2,2-difluoro-1,3-benzodioxole Chemical group C1=C(Cl)C=C2OC(F)(F)OC2=C1 CVICEEPAFUYBJG-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- CDHRYNHYMHKSSY-UHFFFAOYSA-N ClC=1C=CC(=C(C(=O)C2=C(C=CC=C2)NC(=O)C)C1)Br Chemical compound ClC=1C=CC(=C(C(=O)C2=C(C=CC=C2)NC(=O)C)C1)Br CDHRYNHYMHKSSY-UHFFFAOYSA-N 0.000 description 1
- FKLJPTJMIBLJAV-UHFFFAOYSA-N Compound IV Chemical compound O1N=C(C)C=C1CCCCCCCOC1=CC=C(C=2OCCN=2)C=C1 FKLJPTJMIBLJAV-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- AGKPGIOZNCJFTQ-UHFFFAOYSA-N [2-(methylamino)phenyl]-phenylmethanone Chemical compound CNC1=CC=CC=C1C(=O)C1=CC=CC=C1 AGKPGIOZNCJFTQ-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000004744 butyloxycarbonyl group Chemical group 0.000 description 1
- 125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000006125 ethylsulfonyl group Chemical group 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000006216 methylsulfinyl group Chemical group [H]C([H])([H])S(*)=O 0.000 description 1
- MRXZRJQRQWTKIX-UHFFFAOYSA-N n-(2-benzoylphenyl)acetamide Chemical compound CC(=O)NC1=CC=CC=C1C(=O)C1=CC=CC=C1 MRXZRJQRQWTKIX-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001038 naphthoyl group Chemical group C1(=CC=CC2=CC=CC=C12)C(=O)* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- KJIFKLIQANRMOU-UHFFFAOYSA-N oxidanium;4-methylbenzenesulfonate Chemical compound O.CC1=CC=C(S(O)(=O)=O)C=C1 KJIFKLIQANRMOU-UHFFFAOYSA-N 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004742 propyloxycarbonyl group Chemical group 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- 239000003204 tranquilizing agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D203/00—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom
- C07D203/04—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D203/06—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D203/08—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring nitrogen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP43077505A JPS4834757B1 (enrdf_load_stackoverflow) | 1968-10-24 | 1968-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH505138A true CH505138A (fr) | 1971-03-31 |
Family
ID=13635807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1592169A CH505138A (fr) | 1968-10-24 | 1969-10-24 | Procédé de préparation de benzodiazèpines |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4834757B1 (enrdf_load_stackoverflow) |
| BR (1) | BR6913582D0 (enrdf_load_stackoverflow) |
| CH (1) | CH505138A (enrdf_load_stackoverflow) |
| CS (1) | CS172316B2 (enrdf_load_stackoverflow) |
| IN (1) | IN123679B (enrdf_load_stackoverflow) |
| NL (1) | NL6915995A (enrdf_load_stackoverflow) |
| SE (1) | SE350505B (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2119072A1 (enrdf_load_stackoverflow) * | 1970-12-23 | 1972-08-04 | Hoffmann La Roche |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51146068U (enrdf_load_stackoverflow) * | 1975-05-17 | 1976-11-24 |
-
1968
- 1968-10-24 JP JP43077505A patent/JPS4834757B1/ja active Pending
-
1969
- 1969-10-23 NL NL6915995A patent/NL6915995A/xx unknown
- 1969-10-23 IN IN123679A patent/IN123679B/en unknown
- 1969-10-23 BR BR21358269A patent/BR6913582D0/pt unknown
- 1969-10-24 SE SE1461669A patent/SE350505B/xx unknown
- 1969-10-24 CH CH1592169A patent/CH505138A/fr not_active IP Right Cessation
- 1969-10-24 CS CS706269A patent/CS172316B2/cs unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2119072A1 (enrdf_load_stackoverflow) * | 1970-12-23 | 1972-08-04 | Hoffmann La Roche |
Also Published As
| Publication number | Publication date |
|---|---|
| SE350505B (enrdf_load_stackoverflow) | 1972-10-30 |
| CS172316B2 (enrdf_load_stackoverflow) | 1976-12-29 |
| NL6915995A (enrdf_load_stackoverflow) | 1970-04-28 |
| IN123679B (enrdf_load_stackoverflow) | 1975-09-06 |
| JPS4834757B1 (enrdf_load_stackoverflow) | 1973-10-23 |
| BR6913582D0 (pt) | 1973-02-15 |
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