DE1146068B - Process for the preparation of basic substituted carbinols - Google Patents
Process for the preparation of basic substituted carbinolsInfo
- Publication number
- DE1146068B DE1146068B DET16442A DET0016442A DE1146068B DE 1146068 B DE1146068 B DE 1146068B DE T16442 A DET16442 A DE T16442A DE T0016442 A DET0016442 A DE T0016442A DE 1146068 B DE1146068 B DE 1146068B
- Authority
- DE
- Germany
- Prior art keywords
- formula
- above meaning
- general formula
- ketones
- compounds
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
- C07C215/02—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C215/22—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being unsaturated
- C07C215/28—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being unsaturated and containing six-membered aromatic rings
- C07C215/30—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being unsaturated and containing six-membered aromatic rings containing hydroxy groups and carbon atoms of six-membered aromatic rings bound to the same carbon atom of the carbon skeleton
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
T16442 IVb/12 qT16442 IVb / 12 q
ANMELDETAG: 21. MÄRZ 1959 REGISTRATION DATE: MARCH 21, 1959
BEKANNTMACHUN G
DER ANMELDUNG
UND AUSGABE DER
AUSLEGESCHRIFT: 28. MÄRZ 1963 NOTICE
THE REGISTRATION
AND ISSUE OF THE
EDITORIAL: MARCH 28, 1963
Die Erfindung betrifft die Herstellung von therapeutisch wertvollen, basisch substituierten Carbinolen der allgemeinen FormelThe invention relates to the manufacture of therapeutic valuable, basic substituted carbinols of the general formula
A+VA + V
OHOH
CH2- C — CH- CH2- N<
Ri R2 CH 2 - C - CH - CH 2 - N <
Ri R 2
R4
R5 R 4
R 5
In dieser Formel bedeutet Rj einen niedrigmolekularen Alkylrest, R2 einen niedrigmolekularen Alkylrest, einen niedrigmolekularen Alkenylrest, einen Aryl- oder Aralkylrest; R3 bedeutet Wasserstoff, ein Halogenatom oder einen niederen Alkylrest; R4 und R5, die gleich oder verschieden sein können, bedeuten niedrigmolekulare Alkylreste; die Reste R4 und R5 können auch zusammen mit dem Stickstoffatom einen Pyrrolidin- oder Piperidinring bilden.In this formula, Rj denotes a low molecular weight alkyl group, R 2 denotes a low molecular weight alkyl group, a low molecular weight alkenyl group, an aryl or aralkyl group; R 3 represents hydrogen, a halogen atom or a lower alkyl radical; R4 and R5, which can be the same or different, represent low molecular weight alkyl radicals; the radicals R 4 and R 5 can also form a pyrrolidine or piperidine ring together with the nitrogen atom.
Die Verbindungen der allgemeinen Formel I werden erhalten, indem Ketone der allgemeinen FormelThe compounds of the general formula I are obtained by using ketones of the general formula
IlIl
Rl — C-CH-CH2- N<Rl - C-CH-CH 2 - N <
R2 R 2
-R4 -R 4
IIII
Verfahren zur Herstellung von
basisch substituierten CarbinolenProcess for the production of
basic substituted carbinols
Anmelder:Applicant:
Dr. Karl Thomae G. m. b. H.,
Biberach/RißDr. Karl Thomae G. mb H.,
Biberach / Riss
Dipl.-Chem. Dr. Alex Berg, Biberach/Riß,
ist als Erfinder genannt wordenDipl.-Chem. Dr. Alex Berg, Biberach / Riß,
has been named as the inventor
Verbindung und 1 Mol des Ketons verwendet. Die Umsetzung erfolgt vorteilhaft bei Temperaturen zwischen 0 und 100° C. Die Aufarbeitung erfolgt in der üblichen Weise, in dem das Reaktionsgemisch auf Eis gegossen, die organische Schicht abgetrennt und die Base isoliert oder gegebenenfalls in ihr Säureadditionssalz übergeführt wird.Compound and 1 mole of the ketone used. The reaction is advantageously carried out at temperatures between 0 and 100 ° C. Working up is carried out in the customary manner in which the reaction mixture Poured onto ice, the organic layer separated and the base isolated or, if appropriate, in it Acid addition salt is converted.
Man kann auch Ketone der allgemeinen FormelOne can also use ketones of the general formula
worin Ri, R2, R4 und R5 die obige Bedeutung besitzen, mit Grignard-Verbindungen der Formelwherein Ri, R 2 , R 4 and R5 have the above meaning with Grignard compounds of the formula
IlIl
CH2-C —RiCH 2 -C -Ri
CH2 — MgXCH 2 - MgX
IIIIII
in der R3 die obige Bedeutung besitzt und X ein Halogen bedeutet, umgesetzt werden. In gleicher Weise können auch Ketone der allgemeinen Formel in der Ri und R3 die obige Bedeutung besitzen, in Gegenwart eines basischen Kondensationsmittels in einem inerten organischen Lösungsmittel mit Nitrilen der allgemeinen Formelin which R3 has the above meaning and X is a halogen. In the same Way can also ketones of the general formula in which Ri and R3 have the above meaning, in Presence of a basic condensing agent in an inert organic solvent with nitriles the general formula
R2CH2CNR 2 CH 2 CN
VIIVII
R4 R 4
/ V-CH2-C-CH-CH2-NC IV
ν=/ ι Nr5 / V-CH 2 -C -CH-CH 2 -NC IV
ν = / ι No. 5
R2
mit Grignard-Verbindungen der FormelR 2
with Grignard compounds of the formula
RiMgX VRiMgX V
zur Reaktion gebracht werden.be made to react.
Diese Reaktionen werden in der für Grignard-Reaktionen üblichen Weise durchgeführt; man arbeitet in einem wasserfreien Lösungsmittel, wie Äther, Benzol, Tetrahydrofuran oder Gemischen davon. Zweckmäßig werden 1 bis 3 Mol der Grignardumsetzen und die entstandenen Oxynitrile der Formel R3 OHThese reactions are carried out in the manner customary for Grignard reactions; one works in an anhydrous solvent such as ether, benzene, tetrahydrofuran or mixtures thereof. Expediently, 1 to 3 mol of the Grignard converts and the resulting oxynitriles of the formula R 3 OH
VIIIVIII
—C —CH-CN—C —CH-CN
Ri R2
dann zu primären Aminen der FormelRi R 2
then to primary amines of the formula
,A+V, A + V
OH
CH2-C-CH-CH2-NH2 IXOH
CH 2 -C -CH-CH 2 -NH 2 IX
Ri R2 Ri R 2
reduzieren. Diese können dann, falls R4 und Rs in der allgemeinen Formel I eine andere Bedeutung alsto reduce. These can then, if R 4 and Rs in the general formula I have a meaning other than
309 547/429309 547/429
Wasserstoff besitzen, alkyliert bzw. in die entsprechenden heterocyclischen Verbindungen übergeführt werden. Als basische Kondensationsmittel können beispielsweise Natriumamid oder Natriumhydrid verwendet werden.Possess hydrogen, alkylated or converted into the corresponding heterocyclic compounds will. Sodium amide or sodium hydride, for example, can be used as basic condensing agents be used.
Die Reduktion der Oxynitrile erfolgt vorzugsweise durch katalytische Hydrierung. Diese wird zweckmäßig in schwach alkalischer, vorzugsweise alkoholischer Lösung, in Gegenwart von Raney-Nickel bei Temperaturen über 1000C und einem Druck von 50 bis 150 Atmosphären durchgeführt. Die Alkylierung der so erhaltenen primären Amine der Formel IX am Stickstoff kann in üblicher Weise, z. B. mit Alkylhalogeniden oder Dialkylsulfaten, durchgeführt werden. Falls eineMethylierung erfolgen soll, kann diese in der üblichen Weise mit Ameisensäure und Formaldehyd vorgenommen werden. Gewünschtenfalls können die Amine der Formel IX mit Dihalogenbutan oder Dihalogenpentan in die entsprechenden heterocyclischen Verbindungen übergeführt werden.The oxynitriles are preferably reduced by catalytic hydrogenation. This is expediently carried out in a weakly alkaline, preferably alcoholic, solution in the presence of Raney nickel at temperatures above 100 ° C. and a pressure of 50 to 150 atmospheres. The alkylation of the primary amines of the formula IX obtained in this way on the nitrogen can be carried out in a customary manner, for. B. with alkyl halides or dialkyl sulfates. If a methylation is to be carried out, this can be carried out in the usual way with formic acid and formaldehyde. If desired, the amines of the formula IX can be converted into the corresponding heterocyclic compounds using dihalobutane or dihalopentane.
Die als Ausgangsmaterialien verwendeten Ketone der Formel VI sind teilweise aus der Literatur bekannt bzw. können sie beispielsweise nach den weiter unten angegebenen Literaturstellen hergestellt werden. Die als Ausgangssubstanzen dienenden basischen Ketone der Formeln II und IV können aus den entsprechenden Ketonen, beispielsweise mit Formaldehyd und den entsprechenden sekundären Aminen nach Mannich in an sich bekannter Weise erhalten werden (vgl. zum Beispiel Arch. Pharm., Bd. 264, S. 741 [1926]; J. Org. Chem., Bd. 18, S. 736 [1953]; J. Chem. Soc, 1952, S. 1321).Some of the ketones of the formula VI used as starting materials are from the literature known or they can be prepared, for example, according to the literature references given below will. The basic ketones of the formulas II and IV used as starting substances can from the corresponding ketones, for example with formaldehyde and the corresponding secondary Amines according to Mannich can be obtained in a manner known per se (cf., for example, Arch. Pharm., Vol. 264, p. 741 [1926]; J. Org. Chem., Vol. 18, p. 736 [1953]; J. Chem. Soc, 1952, p. 1321).
Die erfindungsgemäß hergestellten Verbindungen stellen wertvolle Hustenmittel dar, deren Wirkungsstärke in der Größenordnung von Codein liegt. Sie besitzen jedoch überraschenderweise keine nennenswerte analgetische Wirksamkeit und weisen die gekannten unangenehmen Nebenwirkungen von Codein nicht auf. Sie sind auch bekannten Verbindungen mit vergleichbarer Struktur, beispielsweise 1,2 - Diphenyl - 3 - methyl - 4 - dimethylaminobutanol-(2) (J. Am. Chem. Soc, Bd. 75, S. 4458 [1953]) oder 1,2-Diphenyl-4-dimethyl-amino-butanol-(2) (HeIv. Bd. 33, S. 1194 [1950]) in überraschender und unvorhersehbarer Weise überlegen, denn diese bekannten Verbindungen weisen überhaupt keine hustenstillende Wirkung auf.The compounds prepared according to the invention are valuable cough suppressants whose potency is in the order of magnitude of codeine. she surprisingly, however, have no appreciable analgesic effectiveness and have the known unpleasant side effects of codeine. They are also known compounds with a comparable structure, for example 1,2 - diphenyl - 3 - methyl - 4 - dimethylaminobutanol- (2) (J. Am. Chem. Soc, vol. 75, p. 4458 [1953]) or 1,2-diphenyl-4-dimethylamino-butanol- (2) (HeIv. Vol. 33, p. 1194 [1950]) in surprising and unpredictably superior, because these known connections show at all no cough suppressant effect.
Die folgenden Beispiele erläutern die Erfindung.The following examples illustrate the invention.
l-p-CMorphenyl^S-dimethyM-diniethylaminobutanol-(2) l-p-CMorphenyl ^ S-dimethyM-diniethylaminobutanol- (2)
Zu einer Grignard-Lösung von 4/i0 Mol p-Chlorbenzylmagnesiumchlorid, die aus 64,5 g p-Chlorbenzylchlorid und 9,8 g Magnesium in 200 ml absolutem Äther hergestellt ist, tropft man unter Rühren und Eiskühlung 2/io Mol (33 g) 3-Methyl-4 - dimethylamine - butanol - (2) (hergestellt nach Mannich, Arch. Pharm., Bd. 265, S. 589 [1927])To a Grignard solution of 4 i 0 mole p-chlorobenzyl magnesium chloride /, which is made of 64.5 g of p-chlorobenzyl chloride and 9.8 g of magnesium in 200 ml of absolute ether are added dropwise with stirring and ice cooling 2 / io mole (33 g) 3-Methyl-4-dimethylamine-butanol - (2) (prepared according to Mannich, Arch. Pharm., Vol. 265, p. 589 [1927])
in 50 ml absolutem Äther. Das Reaktionsprodukt wird zur Vervollständigung der Reaktion noch 1Za Stunde unter Rückfluß erhitzt, anschließend mit etwa 50 ml konzentrierter Salzsäure und etwa 200 g Eis zerlegt. Die ätherische Phase wird verworfen und die wäßrige Lösung nach Einstellung auf alkalischen pH mit Ammoniak erschöpfend ausgeäthert. Nach dem Einengen der vereinigten getrockneten Ätherauszüge wird der ölige Rückstand fraktioniert destilliert. Man erhält den gewünschten Amino-in 50 ml of absolute ether. To complete the reaction, the reaction product is refluxed for a further 1 hour, then decomposed with about 50 ml of concentrated hydrochloric acid and about 200 g of ice. The ethereal phase is discarded and the aqueous solution is exhaustively etherified after adjusting to an alkaline pH with ammonia. After the combined, dried ether extracts have been concentrated, the oily residue is fractionally distilled. The desired amino
alkohol als farbloses Öl vom Kp.i2 = 179 bis 181° C in 95%iger Ausbeute (48,5 g).alcohol as a colorless oil with a boiling point of 2 = 179 to 181 ° C in 95% yield (48.5 g).
In analoger Weise können die in der folgenden Tabelle angeführten Verbindungen erhalten werden.The compounds listed in the table below can be obtained in an analogous manner.
spielat
game
3-Me1hyl-4-dmethylamino-
butanon-(2)Benzyne magnesium bromide and
3-methyl-4-dmethylamino-
butanone- (2)
3-Benzyl-4-dimethylainino-
butanon-(2)Benzyne magnesium bromide and
3-benzyl-4-dimethylainino-
butanone- (2)
1 -Phenyl-S-methyl-^dimethyl-
amino-butanon-2-hydrochloriüEthyl magnesium bromide and
1 -Phenyl-S-methyl- ^ dimethyl-
amino-butanone-2-hydrochloride
3-Phenyl-4-dimethylamino-
butanon-(2)Benzyne magnesium bromide and
3-phenyl-4-dimethylamino
butanone- (2)
HCl F. = 218
bis 220°CBp 2 186 to 188 ° C
HCl F. = 218
up to 220 ° C
bromid und 4-Methyl-5-di-
methylamino-pentanon-(2)p-chlorobenzene magnesium
bromide and 4-methyl-5-di-
methylamino-pentanone- (2)
3-Me&yl-4-dimeÄyIamino-
butanon-(2)p-methylbenzyl bromide and
3-Me & yl-4-dimeÄyIamino-
butanone- (2)
3-AUyl-4-dimethylamino-
butanon-(2)Benzyne magnesium bromide and
3-AUyl-4-dimethylamino-
butanone- (2)
spielat
game
R3 I.
R 3
CH2
I
CH2
/ \
CH 2
I.
CH 2
/
CH2
-CH2 \
CH 2
-CH 2
CH2 \ /
CH 2
HCl F. = 1600CBp.i2 171 to 173 ° C
HCl F. = 160 ° C
bromid und 3-Methyl-4-di-
methylamino-butanon-(2)o-chlorobenzyl magnesium
bromide and 3-methyl-4-di-
methylamino-butanone- (2)
CH2
CH2 /
CH 2
CH 2
CH2
-CH2 \
CH 2
-CH 2
3-Äthyl-4-dimethylamino-
butanon-(2)Benzyl magnesium bromide and
3-ethyl-4-dimethylamino
butanone- (2)
bromid und 3-Äthyl-
4-dimethylamino-butanon-(2)p-chlorobenzyl magnesium
bromide and 3-ethyl
4-dimethylamino-butanone- (2)
CH2
CH2 /
CH 2
CH 2
bromid und 3-Methyldiäthyl-
amino-butanon-(2)p-chlorobenzyl magnesium
bromide and 3-methyl diethyl
amino-butanone- (2)
CH2
CH2
\ /
CH 2
CH 2
\
CH2
CH2
/ \
CH 2
CH 2
/
HCl F. = 206
bis 2080CBp 192 to 194 ° C
HCl F. = 206
up to 208 0 C
3-Methyl-4-piperidyl-
butanon-(2)Benzyl magnesium bromide and
3-methyl-4-piperidyl-
butanone- (2)
CH2 \ κ
CH 2
CH2
I
CH2
\ /
CH 2
I.
CH 2
\
HCl F. = 215
bis 2170CKp.o, 3168-170 0 C
HCl F. = 215
up to 217 0 C
bromid und 3-Methyl-
4-piperidyl-butanon-(2)p-chlorobenzyl magnesium
bromide and 3-methyl-
4-piperidyl-butanone- (2)
bromid und 3-Methyl-
4-pyrrolidyl-butanon-(2)p-chlorobenzyl magnesium
bromide and 3-methyl-
4-pyrrolidyl-butanone- (2)
bromid und 3-Methyl-
4-dimethylamino-butanon-(2)m-chlorobenzyl magnesium
bromide and 3-methyl-
4-dimethylamino-butanone- (2)
3-Methyl-4-pyrrolidyl-
butanon-(2)Benzyne magnesium bromide and
3-methyl-4-pyrrolidyl-
butanone- (2)
bromid und 3-Methyl-
4-dimethylamino-butanon-(2)p-bromobenzyl magnesium
bromide and 3-methyl-
4-dimethylamino-butanone- (2)
bromid und 3-Methyl-
4-dimethylamino-butanon-(2)m-chlorobenzyl magnesium
bromide and 3-methyl-
4-dimethylamino-butanone- (2)
Beispiel 20
l-Phenyl-2,3-dimethyl-4-dimethylamino-butanol-(2)Example 20
l-phenyl-2,3-dimethyl-4-dimethylamino-butanol- (2)
5555
Zu einer in üblicher Weise hergestellten Grignardlösung aus 141 g Methyljodid und 25 g Magnesiumspäne in 600 ml absolutem Äther fügt man bei — 100C unter Rühren portionsweise 80 g 1-Phenyl-3-methyl-4-dimethylamino-butanon-(2)-hydrochlorid. Nach 2stündigem Stehenlassen bei Zimmertemperatur wird das Reaktionsprodukt mit einer Eis-Schwefelsäure-Mischung zerlegt und die Ätherphase verworfen. Die alkalisch gestellte Lösung wird erschöpfend ausgeäthert, die vereinigten Ätherauszüge getrocknet und der Äther abdestilliert. Zur Reinigung destilliert man den Rückstand im Vakuum. Kp.12 150 bis 152°C.To a conventionally prepared Grignard solution of 141 g of methyl iodide and 25 g of magnesium turnings in 600 ml of absolute ether are added at - 10 0 C in portions with stirring, 80 g 1-Phenyl-3-methyl-4-dimethylamino-butanone (2) - hydrochloride. After standing for 2 hours at room temperature, the reaction product is broken down with an ice-sulfuric acid mixture and the ether phase is discarded. The alkaline solution is exhausted with ether, the combined ether extracts are dried and the ether is distilled off. For purification, the residue is distilled in vacuo. Bp 12 150 to 152 ° C.
Die als Ausgangsmaterialien verwendeten Mannich-Basen können gemäß folgenden Literaturstellen hergestellt werden.The Mannich bases used as starting materials can be prepared according to the following references will.
1. Mannich, Arch. Pharm., Bd. 265, S. 589 (1927).1. Mannich, Arch. Pharm., Vol. 265, p. 589 (1927).
2. Mannich, Arch. Pharm., Bd. 264, S. 741 (1926).2. Mannich, Arch. Pharm., Vol. 264, p. 741 (1926).
3. Mannich, Arch. Pharm., Bd. 255, S. 261 (1917).3. Mannich, Arch. Pharm., Vol. 255, p. 261 (1917).
4. Wilson, Soc, 1952, S. 1321.4. Wilson, Soc, 1952, p. 1321.
Claims (1)
a) Ketone der allgemeinen Formelin which Ri is a low molecular weight alkyl group, R2 is a low molecular weight alkyl group, a lower alkenyl group, an aryl or aralkyl group, R 3 is hydrogen, a halogen atom or a lower alkyl group, R4 and R5, which can be the same: S or different, are low molecular weight alkyl groups, wherein R4 and R5 may also together form with the nitrogen atom form a pyrrolidine or piperidine ring together, and, net of their acid addition salts, characterized in that gekennzeich-
a) Ketones of the general formula
R5 -R 4
R 5
R2 CH 2 -C -CH-CH 2 -N <
R 2
R5 R 4
R 5
RiMgXwith Grignard compounds of the formula
RiMgX
Ri R2 CH 2 -C -CH-CH 2 -NH 2
Ri R 2
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET16442A DE1146068B (en) | 1959-03-21 | 1959-03-21 | Process for the preparation of basic substituted carbinols |
CH285760A CH396942A (en) | 1959-03-21 | 1960-03-14 | Process for the production of basic substituted carbinols |
BE588825A BE588825A (en) | 1959-03-21 | 1960-03-18 | Process for the preparation of basic substituted carbinols. |
FR821792A FR1290129A (en) | 1959-03-21 | 1960-03-18 | Process for the preparation of basic substituted carbinols |
DK106660AA DK107034C (en) | 1959-03-21 | 1960-03-19 | Process for the preparation of basic substituted carbinols. |
GB9986/60A GB898010A (en) | 1959-03-21 | 1960-03-21 | Process for the preparation of basic substituted carbinols |
CH436361A CH426874A (en) | 1959-03-21 | 1961-04-13 | Process for the production of basic substituted carbinols |
OA51181A OA01023A (en) | 1959-03-21 | 1964-12-30 | Process for the preparation of basic substituted carbinols. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET16442A DE1146068B (en) | 1959-03-21 | 1959-03-21 | Process for the preparation of basic substituted carbinols |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1146068B true DE1146068B (en) | 1963-03-28 |
Family
ID=7548259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET16442A Pending DE1146068B (en) | 1959-03-21 | 1959-03-21 | Process for the preparation of basic substituted carbinols |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1146068B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0413302A1 (en) * | 1989-08-16 | 1991-02-20 | Dr. Karl Thomae GmbH | 1,3-Oxazines |
WO2003051353A1 (en) * | 2001-12-14 | 2003-06-26 | Grünenthal GmbH | Substituted beta-aminoalcohols used as medicaments |
-
1959
- 1959-03-21 DE DET16442A patent/DE1146068B/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0413302A1 (en) * | 1989-08-16 | 1991-02-20 | Dr. Karl Thomae GmbH | 1,3-Oxazines |
WO2003051353A1 (en) * | 2001-12-14 | 2003-06-26 | Grünenthal GmbH | Substituted beta-aminoalcohols used as medicaments |
US7507816B2 (en) | 2001-12-14 | 2009-03-24 | Gruenenthal Gmbh | Pharmaceutical preparations comprising substituted beta-aminoalcohols |
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