DE1545792B2 - Verfahren zur Herstellung von 4-Hydroxyplperidinen - Google Patents
Verfahren zur Herstellung von 4-HydroxyplperidinenInfo
- Publication number
- DE1545792B2 DE1545792B2 DE1545792A DE1545792A DE1545792B2 DE 1545792 B2 DE1545792 B2 DE 1545792B2 DE 1545792 A DE1545792 A DE 1545792A DE 1545792 A DE1545792 A DE 1545792A DE 1545792 B2 DE1545792 B2 DE 1545792B2
- Authority
- DE
- Germany
- Prior art keywords
- solution
- ether
- hydroxypiperidine
- phenyl
- methyl
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 6
- HDOWRFHMPULYOA-UHFFFAOYSA-N piperidin-4-ol Chemical class OC1CCNCC1 HDOWRFHMPULYOA-UHFFFAOYSA-N 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 52
- 239000000243 solution Substances 0.000 description 28
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 20
- 150000001299 aldehydes Chemical class 0.000 description 18
- -1 alkyl radical Chemical group 0.000 description 18
- 150000001412 amines Chemical class 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 17
- 238000009833 condensation Methods 0.000 description 15
- 230000005494 condensation Effects 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000000203 mixture Substances 0.000 description 11
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 8
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 7
- KRTGJZMJJVEKRX-UHFFFAOYSA-N 2-phenylethan-1-yl Chemical compound [CH2]CC1=CC=CC=C1 KRTGJZMJJVEKRX-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 239000008098 formaldehyde solution Substances 0.000 description 5
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 5
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 description 4
- 125000001797 benzyl group Chemical class [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 4
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 description 4
- 235000011181 potassium carbonates Nutrition 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- FFFMCZVNXYXMLS-UHFFFAOYSA-N methyl 2-(4-methoxyphenyl)oxirane-2-carboxylate Chemical compound C=1C=C(OC)C=CC=1C1(C(=O)OC)CO1 FFFMCZVNXYXMLS-UHFFFAOYSA-N 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- QJRINXZGXJVUPC-UHFFFAOYSA-N 2,3-dimethyl-4-phenylpiperidin-4-ol Chemical compound CC1NCCC(C1C)(O)C1=CC=CC=C1 QJRINXZGXJVUPC-UHFFFAOYSA-N 0.000 description 2
- QCUZXOSDSFIUKI-UHFFFAOYSA-N 2-[(4-methoxyphenyl)methyl]-3,4-dimethylpiperidin-4-ol Chemical compound C1=CC(OC)=CC=C1CC1C(C)C(C)(O)CCN1 QCUZXOSDSFIUKI-UHFFFAOYSA-N 0.000 description 2
- ZWVLEWJTUAVNNN-UHFFFAOYSA-N 4-(4-methoxyphenyl)-3-methylpiperidin-4-ol Chemical compound C1=CC(OC)=CC=C1C1(O)C(C)CNCC1 ZWVLEWJTUAVNNN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000006929 Pictet-Spengler synthesis reaction Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical class [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- MLIREBYILWEBDM-UHFFFAOYSA-N cyanoacetic acid Chemical compound OC(=O)CC#N MLIREBYILWEBDM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- UVBBCQLPTZEDHT-UHFFFAOYSA-N pent-4-en-1-amine Chemical compound NCCCC=C UVBBCQLPTZEDHT-UHFFFAOYSA-N 0.000 description 2
- DTUQWGWMVIHBKE-UHFFFAOYSA-N phenylacetaldehyde Chemical compound O=CCC1=CC=CC=C1 DTUQWGWMVIHBKE-UHFFFAOYSA-N 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- UVKXJAUUKPDDNW-NSCUHMNNSA-N (e)-pent-3-enenitrile Chemical compound C\C=C\CC#N UVKXJAUUKPDDNW-NSCUHMNNSA-N 0.000 description 1
- YRQCJPVAIPXQDQ-UHFFFAOYSA-N 1,3-dimethyl-4-phenylpiperidin-4-ol Chemical compound CC1CN(C)CCC1(O)C1=CC=CC=C1 YRQCJPVAIPXQDQ-UHFFFAOYSA-N 0.000 description 1
- IUDMXOOVKMKODN-UHFFFAOYSA-N 2-(cyclohexen-1-yl)ethanamine Chemical compound NCCC1=CCCCC1 IUDMXOOVKMKODN-UHFFFAOYSA-N 0.000 description 1
- BIXTWAOWPWKBOT-UHFFFAOYSA-N 2-phenyl-4-propan-2-ylpiperidin-4-ol Chemical compound C1(=CC=CC=C1)C1NCCC(C1)(O)C(C)C BIXTWAOWPWKBOT-UHFFFAOYSA-N 0.000 description 1
- SLRMQYXOBQWXCR-UHFFFAOYSA-N 2154-56-5 Chemical compound [CH2]C1=CC=CC=C1 SLRMQYXOBQWXCR-UHFFFAOYSA-N 0.000 description 1
- WHINFQWHZSHCTQ-UHFFFAOYSA-N 3,5-dimethylhexan-1-amine Chemical compound CC(C)CC(C)CCN WHINFQWHZSHCTQ-UHFFFAOYSA-N 0.000 description 1
- GBVIEBZKLGUWKN-UHFFFAOYSA-N 3-methyl-4-phenyl-2-propan-2-ylpiperidin-4-ol Chemical compound C(C)(C)C1NCCC(C1C)(O)C1=CC=CC=C1 GBVIEBZKLGUWKN-UHFFFAOYSA-N 0.000 description 1
- SRRNMCXSYNAQAJ-UHFFFAOYSA-N 3-methyl-4-phenylbut-1-en-1-amine Chemical compound CC(C=CN)CC1=CC=CC=C1 SRRNMCXSYNAQAJ-UHFFFAOYSA-N 0.000 description 1
- JLAUIBFZZUVOBB-UHFFFAOYSA-N 3-methylpentan-1-amine Chemical compound CCC(C)CCN JLAUIBFZZUVOBB-UHFFFAOYSA-N 0.000 description 1
- RREAUWKGYBRCFZ-UHFFFAOYSA-N 4-(2-methylpropyl)-2-phenylpiperidin-4-ol Chemical compound C1(=CC=CC=C1)C1NCCC(C1)(O)CC(C)C RREAUWKGYBRCFZ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229940035676 analgesics Drugs 0.000 description 1
- 239000000730 antalgic agent Substances 0.000 description 1
- 150000001622 bismuth compounds Chemical class 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000012259 ether extract Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- YKNYRRVISWJDSR-UHFFFAOYSA-N methyl oxirane-2-carboxylate Chemical compound COC(=O)C1CO1 YKNYRRVISWJDSR-UHFFFAOYSA-N 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 230000001035 methylating effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- SQYNKIJPMDEDEG-UHFFFAOYSA-N paraldehyde Chemical compound CC1OC(C)OC(C)O1 SQYNKIJPMDEDEG-UHFFFAOYSA-N 0.000 description 1
- 229960003868 paraldehyde Drugs 0.000 description 1
- 229940100595 phenylacetaldehyde Drugs 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000003039 tetrahydroisoquinolinyl group Chemical class C1(NCCC2=CC=CC=C12)* 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D211/40—Oxygen atoms
- C07D211/44—Oxygen atoms attached in position 4
- C07D211/52—Oxygen atoms attached in position 4 having an aryl radical as the second substituent in position 4
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D211/40—Oxygen atoms
- C07D211/44—Oxygen atoms attached in position 4
- C07D211/46—Oxygen atoms attached in position 4 having a hydrogen atom as the second substituent in position 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0045378 | 1965-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1545792A1 DE1545792A1 (de) | 1969-12-11 |
| DE1545792B2 true DE1545792B2 (de) | 1975-08-07 |
Family
ID=7100469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1545792A Pending DE1545792B2 (de) | 1965-02-27 | 1965-02-27 | Verfahren zur Herstellung von 4-Hydroxyplperidinen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3845062A (enExample) |
| AT (1) | AT263773B (enExample) |
| CH (1) | CH484128A (enExample) |
| DE (1) | DE1545792B2 (enExample) |
| GB (1) | GB1078286A (enExample) |
| IL (1) | IL25213A (enExample) |
| SE (1) | SE330020B (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE34235B1 (en) * | 1969-06-04 | 1975-03-19 | Acf Chemiefarma Nv | 6,7-benzomorphans and their preparation |
| BE795660A (fr) * | 1972-03-31 | 1973-06-18 | Grelan Pharmaceutical Co | Procede de preparation d'un compose heterocyclique et de ses internediaires, et produits obtenus |
| US4387229A (en) * | 1977-09-13 | 1983-06-07 | Pfizer Inc. | 3-[2-Hydroxy-4-(substituted)phenyl]azacycloalkanols and derivatives thereof |
| US4302590A (en) * | 1979-02-23 | 1981-11-24 | Hoechst-Roussel Pharmaceuticals, Inc. | Intermediates for the preparation of 4-aryloxy-3-phenylpiperidines |
| US4277377A (en) | 1979-03-22 | 1981-07-07 | Bush Boake Allen Limited | Perfume compositions containing dimethyl heptenonitriles |
| US4507306A (en) * | 1982-07-22 | 1985-03-26 | Hoechst-Roussel Pharmaceuticals Inc. | cis-4a-Aryl-1,2,3,4,4a,9b-hexahydro-benzofuro[3,2-c]pyridines and their anti-convulsant and analgesic activity |
| US4585779A (en) * | 1982-07-22 | 1986-04-29 | Hoechst-Roussel Pharmaceuticals Inc. | cis-4a-Aryl-1,2,3,4,4a,9b-hexahydro-benzofuro[3,2-c]pyridines and intermediates thereof |
| US4405334A (en) * | 1982-09-27 | 1983-09-20 | Ethyl Corporation | Diesel fuel composition |
| DE68927445T2 (de) * | 1988-12-07 | 1997-03-06 | Kao Corp | Produktion von aliphatischen primären Aminen |
| JPH04507394A (ja) * | 1989-05-19 | 1992-12-24 | ケンナメタル インコーポレイテッド | Ｃｖｄにより成長した転移金属のカーバイドと窒化物のホイスカー |
| PT863875E (pt) * | 1995-09-07 | 2003-10-31 | Hoffmann La Roche | Novos compostos 4-(oxialcoxifenil)-3-oxi-piperidina para o tratamento de insuficiencia cardiaca e renal |
-
1965
- 1965-02-27 DE DE1545792A patent/DE1545792B2/de active Pending
-
1966
- 1966-02-16 CH CH224066A patent/CH484128A/de not_active IP Right Cessation
- 1966-02-21 IL IL25213A patent/IL25213A/en unknown
- 1966-02-25 AT AT178866A patent/AT263773B/de active
- 1966-02-25 SE SE02502/66A patent/SE330020B/xx unknown
- 1966-02-28 GB GB8626/66A patent/GB1078286A/en not_active Expired
-
1969
- 1969-07-14 US US00850298A patent/US3845062A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1545792A1 (de) | 1969-12-11 |
| GB1078286A (en) | 1967-08-09 |
| IL25213A (en) | 1970-01-29 |
| US3845062A (en) | 1974-10-29 |
| SE330020B (enExample) | 1970-11-02 |
| CH484128A (de) | 1970-01-15 |
| AT263773B (de) | 1968-08-12 |
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