DE1807091B2 - Verfahren zur herstellung von dtrans-pyrethrinsaeure - Google Patents
Verfahren zur herstellung von dtrans-pyrethrinsaeureInfo
- Publication number
- DE1807091B2 DE1807091B2 DE19681807091 DE1807091A DE1807091B2 DE 1807091 B2 DE1807091 B2 DE 1807091B2 DE 19681807091 DE19681807091 DE 19681807091 DE 1807091 A DE1807091 A DE 1807091A DE 1807091 B2 DE1807091 B2 DE 1807091B2
- Authority
- DE
- Germany
- Prior art keywords
- acid
- trans
- pyrethric
- pyrethric acid
- dimethyl
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title description 6
- -1 1-methoxycarbonylethyl Chemical group 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 5
- 150000001408 amides Chemical class 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000012298 atmosphere Substances 0.000 claims description 3
- 150000004678 hydrides Chemical class 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 15
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- PTQGFDXPHNRDCV-UHNVWZDZSA-N (1r,3r)-3-formyl-2,2-dimethylcyclopropane-1-carboxylic acid Chemical compound CC1(C)[C@H](C=O)[C@H]1C(O)=O PTQGFDXPHNRDCV-UHNVWZDZSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 229940017219 methyl propionate Drugs 0.000 description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- HYJYGLGUBUDSLJ-UHFFFAOYSA-N pyrethrin Natural products CCC(=O)OC1CC(=C)C2CC3OC3(C)C2C2OC(=O)C(=C)C12 HYJYGLGUBUDSLJ-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical compound COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- 229910014033 C-OH Inorganic materials 0.000 description 1
- XXTFGUFRXPWYDA-UHFFFAOYSA-N Chrysanthemumdicarboxylic acid Natural products OC(=O)C(C)=CC1C(C(O)=O)C1(C)C XXTFGUFRXPWYDA-UHFFFAOYSA-N 0.000 description 1
- 229910014570 C—OH Inorganic materials 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- VQXSOUPNOZTNAI-UHFFFAOYSA-N Pyrethrin I Natural products CC(=CC1CC1C(=O)OC2CC(=O)C(=C2C)CC=C/C=C)C VQXSOUPNOZTNAI-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 1
- VXSIXFKKSNGRRO-MXOVTSAMSA-N [(1s)-2-methyl-4-oxo-3-[(2z)-penta-2,4-dienyl]cyclopent-2-en-1-yl] (1r,3r)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate;[(1s)-2-methyl-4-oxo-3-[(2z)-penta-2,4-dienyl]cyclopent-2-en-1-yl] (1r,3r)-3-[(e)-3-methoxy-2-methyl-3-oxoprop-1-enyl Chemical class CC1(C)[C@H](C=C(C)C)[C@H]1C(=O)O[C@@H]1C(C)=C(C\C=C/C=C)C(=O)C1.CC1(C)[C@H](/C=C(\C)C(=O)OC)[C@H]1C(=O)O[C@@H]1C(C)=C(C\C=C/C=C)C(=O)C1 VXSIXFKKSNGRRO-MXOVTSAMSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000002983 circular dichroism Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- CZHYKKAKFWLGJO-UHFFFAOYSA-N dimethyl phosphite Chemical compound COP([O-])OC CZHYKKAKFWLGJO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012259 ether extract Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical group [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical class [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229940070846 pyrethrins Drugs 0.000 description 1
- 239000002728 pyrethroid Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C62/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C62/16—Saturated compounds containing —CHO groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
- C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
- C07F9/4006—Esters of acyclic acids which can have further substituents on alkyl
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR127745 | 1967-11-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1807091A1 DE1807091A1 (de) | 1969-10-02 |
DE1807091B2 true DE1807091B2 (de) | 1973-04-19 |
DE1807091C3 DE1807091C3 (da) | 1973-11-08 |
Family
ID=8641542
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681807091 Granted DE1807091B2 (de) | 1967-11-10 | 1968-11-05 | Verfahren zur herstellung von dtrans-pyrethrinsaeure |
DE19681817881 Granted DE1817881A1 (de) | 1967-11-10 | 1968-11-05 | L (+)-treo-1-p-nitrophenyl.-2-n,ndimethylaminopropan-1,3-diol-salz der d-trans-delta-trans-pyrethrinsaeure |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681817881 Granted DE1817881A1 (de) | 1967-11-10 | 1968-11-05 | L (+)-treo-1-p-nitrophenyl.-2-n,ndimethylaminopropan-1,3-diol-salz der d-trans-delta-trans-pyrethrinsaeure |
Country Status (13)
Country | Link |
---|---|
AT (1) | AT286960B (da) |
CH (1) | CH498797A (da) |
CS (1) | CS200161B2 (da) |
DE (2) | DE1807091B2 (da) |
DK (1) | DK144941C (da) |
FR (1) | FR1579476A (da) |
GB (2) | GB1246813A (da) |
IL (1) | IL30905A (da) |
NL (2) | NL6815987A (da) |
PL (1) | PL69854B1 (da) |
SE (1) | SE353709B (da) |
SU (1) | SU423290A3 (da) |
YU (1) | YU34271B (da) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2730515A1 (de) * | 1977-07-06 | 1979-01-18 | Bayer Ag | Substituierte phenoxybenzyloxycarbonylderivate, verfahren zu ihrer herstellung und ihre verwendung als insektizide und akarizide |
US4296241A (en) * | 1979-07-21 | 1981-10-20 | Bayer Aktiengesellschaft | Preparation of 3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid derivatives |
-
0
- NL NL133054D patent/NL133054C/xx active
-
1967
- 1967-11-10 FR FR127745A patent/FR1579476A/fr not_active Expired
-
1968
- 1968-10-21 IL IL30905A patent/IL30905A/en unknown
- 1968-11-01 CH CH1633668A patent/CH498797A/fr not_active IP Right Cessation
- 1968-11-01 DK DK530268A patent/DK144941C/da not_active IP Right Cessation
- 1968-11-05 DE DE19681807091 patent/DE1807091B2/de active Granted
- 1968-11-05 DE DE19681817881 patent/DE1817881A1/de active Granted
- 1968-11-06 SU SU1283233A patent/SU423290A3/ru active
- 1968-11-06 YU YU2608/68A patent/YU34271B/xx unknown
- 1968-11-08 NL NL6815987A patent/NL6815987A/xx unknown
- 1968-11-08 SE SE15201/68A patent/SE353709B/xx unknown
- 1968-11-08 PL PL1968129971A patent/PL69854B1/pl unknown
- 1968-11-11 CS CS687671A patent/CS200161B2/cs unknown
- 1968-11-11 GB GB53375/68A patent/GB1246813A/en not_active Expired
- 1968-11-11 GB GB4197/71A patent/GB1246814A/en not_active Expired
- 1968-11-11 AT AT1096168A patent/AT286960B/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE353709B (da) | 1973-02-12 |
DE1807091C3 (da) | 1973-11-08 |
DE1817881A1 (de) | 1973-03-08 |
IL30905A0 (en) | 1968-12-26 |
YU260868A (en) | 1978-10-31 |
SU423290A3 (da) | 1974-04-05 |
CH498797A (fr) | 1970-11-15 |
CS200161B2 (en) | 1980-08-29 |
DK144941C (da) | 1982-11-29 |
IL30905A (en) | 1972-08-30 |
PL69854B1 (da) | 1973-10-31 |
NL133054C (da) | |
NL6815987A (da) | 1969-05-13 |
AT286960B (de) | 1971-01-11 |
DE1817881C3 (da) | 1979-08-02 |
FR1579476A (da) | 1969-08-29 |
YU34271B (en) | 1979-04-30 |
GB1246813A (en) | 1971-09-22 |
GB1246814A (en) | 1971-09-22 |
DE1817881B2 (da) | 1978-11-23 |
DE1807091A1 (de) | 1969-10-02 |
DK144941B (da) | 1982-07-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2416193A1 (de) | Neue prostaglandin-analoge und verfahren zu ihrer herstellung | |
EP0007490B1 (de) | Neue Prostaglandinderivate der Delta-2,4-11-Desoxy-PGE-Reihe, Verfahren zu ihrer Herstellung sowie ihre Verwendung als Arzneimittel | |
DE2310141A1 (de) | Verfahren zur herstellung von 1phenyl-2-aminoaethanolderivaten | |
DE1807091C3 (da) | ||
EP0694555A1 (de) | Verfahren zur Herstellung von Phosphonsäureestern | |
DE3401913A1 (de) | Verfahren zur herstellung von 8-hydroxyoctansaeure und deren salze sowie deren verwendung | |
DE2524955C3 (de) | Neue Thienyl-Prostaglandine und Verfahren zu ihrer Herstellung | |
DE1247299B (de) | Verfahren zur Herstellung von Carotinoiden | |
EP0008077B1 (de) | Neue Prostaglandinderivate in der Delta-2-PGF2 und Delta-2-PGE2-Reihe, Verfahren zu deren Herstellung und ihre Verwendung als Arzneimittel | |
EP0205969B1 (de) | 7-Oxo-PGI2-Ephedrinsalze, deren Herstellung und diese Verbindungen enthaltende pharmazeutsche Präparate | |
DE2435331C2 (de) | Analoga von Prostansäuren und Verfahren zu ihrer Herstellung sowie diese Analoga von Prostansäuren enthaltende Arzneimittel | |
DE2702370A1 (de) | Neue prostaglandin-analoge und verfahren zu ihrer herstellung | |
DE2742407A1 (de) | Neue fluorhaltige prostaglandinderivate | |
DE842051C (de) | Verfahren zur Herstellung von Hydrofluoren-2-carbonsaeuren und ihren Derivaten | |
DE1249851B (de) | Morel Ariesheim (Schweiz) j Verfahren zur Herstellung neuer Phenoxyessigsäure amide | |
AT235859B (de) | Verfahren zur Herstellung von neuen, beispielsweise zur Schädlingsbekämpfung verwendbaren Phosphonsäureestern | |
DE2632097A1 (de) | Neue cyclopentanderivate und verfahren zu ihrer herstellung | |
DE1924251A1 (de) | Verfahren zur Herstellung von Allyl-phosphonsaeure und Allyl-phosphonsaeure-Derivaten | |
DE1011416B (de) | Verfahren zur Herstellung von 0, 0-Dialkyl-thiol- und -thiol-thiono-phosphorsaeuretriestern | |
DE1198350B (de) | Verfahren zur Herstellung von als Schaedlings-bekaempfungsmittel wirksamen Dialkylenol-phosphaten von alpha-Alkoxalyllaktonen | |
DE2834249A1 (de) | Neue prostaglandinderivate in der delta 2-11-desoxy-pgf tief 2 bzw. pge tief 2 -reihe | |
CH507653A (de) | Neue insekticide Mischung | |
DE2365322B2 (de) | Subst.-methyl-phosphonsaeuredimethylester und ein verfahren zu ihrer herstellung | |
DE2653564A1 (de) | Neue cyclopentanderivate und verfahren zu ihrer herstellung | |
DE2646855A1 (de) | Neue prostaglandinanaloge cyclobutanderivate und verfahren zu ihrer herstellung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |