BE816759A - Chano-e-homovincamones and indoles prepn. - from n-methyl-tryptamines and methyl 4-formyl-hexanoate - Google Patents
Chano-e-homovincamones and indoles prepn. - from n-methyl-tryptamines and methyl 4-formyl-hexanoateInfo
- Publication number
- BE816759A BE816759A BE145795A BE145795A BE816759A BE 816759 A BE816759 A BE 816759A BE 145795 A BE145795 A BE 145795A BE 145795 A BE145795 A BE 145795A BE 816759 A BE816759 A BE 816759A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- ester
- organic
- iii
- give
- Prior art date
Links
- 150000002475 indoles Chemical class 0.000 title abstract description 5
- NCIKQJBVUNUXLW-UHFFFAOYSA-N N-methyltryptamine Chemical class C1=CC=C2C(CCNC)=CNC2=C1 NCIKQJBVUNUXLW-UHFFFAOYSA-N 0.000 title abstract 3
- DHDSIIHECXDOOG-UHFFFAOYSA-N methyl 4-formylhexanoate Chemical compound CCC(C=O)CCC(=O)OC DHDSIIHECXDOOG-UHFFFAOYSA-N 0.000 title abstract 2
- -1 pyrrolidino, morpholino Chemical group 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 36
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 21
- 150000002148 esters Chemical class 0.000 claims description 21
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 14
- 239000012074 organic phase Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 241001147107 Chanos Species 0.000 claims description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 239000012298 atmosphere Substances 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 4
- 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 claims description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 4
- 238000005904 alkaline hydrolysis reaction Methods 0.000 claims description 4
- 239000002585 base Substances 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical group [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000008346 aqueous phase Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 claims description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000010533 azeotropic distillation Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- 125000004573 morpholin-4-yl group Chemical group N1(CCOCC1)* 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 239000012429 reaction media Substances 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005809 transesterification reaction Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 125000000623 heterocyclic group Chemical group 0.000 abstract description 2
- 230000007062 hydrolysis Effects 0.000 abstract description 2
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 abstract description 2
- 150000002169 ethanolamines Chemical class 0.000 abstract 1
- 150000003947 ethylamines Chemical class 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000012299 nitrogen atmosphere Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 229940054051 antipsychotic indole derivative Drugs 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- RMGFLMXDCGQKPS-UHFFFAOYSA-N 1-(2-chloroethyl)pyrrolidine Chemical compound ClCCN1CCCC1 RMGFLMXDCGQKPS-UHFFFAOYSA-N 0.000 description 1
- OMIHGPLIXGGMJB-UHFFFAOYSA-N 7-oxabicyclo[4.1.0]hepta-1,3,5-triene Chemical compound C1=CC=C2OC2=C1 OMIHGPLIXGGMJB-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000002112 pyrrolidino group Chemical group [*]N1C([H])([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- CGRKYEALWSRNJS-UHFFFAOYSA-N sodium;2-methylbutan-2-olate Chemical compound [Na+].CCC(C)(C)[O-] CGRKYEALWSRNJS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
Abstract
Chaneo-E-homovincamones and indoles are of formulae: (I)-(IV) (where each R is Me, or both together with the attached N-atom form a heterocyclic ring, e.g. pyrrolidino, morpholino). N-methyltryptamine reacts with methyl 4-formyl-hexanoate to give (I) which is cyclized with alkali to give (II). Alkali hydrolysis of (I) gives (III), which reacts with 2-subst. ethylamines to give (IV). (I) also reacts with 2-aminoethanols to give (IV) directly.
Description
<EMI ID=1.1>
dérivés indoliques nouveaux..
La présenté invention qui est due à Monsieur
<EMI ID=2.1>
à 1180 BRUXELLES (Belgique) se rapporte à un procédé de synthèse relatif à la préparation de Chano - E - Homovincamones et vise un ensemble d'opérations conduisant à l'obtention de dérivés indoliques nouveaux lesquels constituent des stades intermédiaires dans la synthèse des Chano - E Homovincamones.
La présenta invention se rapporte à l'obten-
<EMI ID=3.1>
pour donner l'ester (III).
<EMI ID=4.1>
Dans un deuxième stade, l'ester (III) est cyclisé en présence d'un agent alcalin pour donner les.
<EMI ID=5.1>
<EMI ID=6.1>
Le dérivé (III) peut à son.tour servir de matière première pour l'obtention d'autres dérivés indoliques nouveaux. Par hydrolyse alcaline, le dérivé (III) donne l'acide correspondant (V) qui peut son tour, par réestérification donner des esters amino éthyliques N-disubstitués de formule générale (VI) dans laquelle les groupes R sont des radicaux alcoyle ou forment ensemble avec l'atome d'azoté auquel ils sont fixés un groupe hétérocyclique tel qu'un
<EMI ID=7.1>
<EMI ID=8.1>
De façon plus détaillée, les divers stades de l'invention sont atteints de la façon suivante :
Dans le premier stade, l'aldéhyde ester, (1)
<EMI ID=9.1>
pendant 4-5 heures, dans un solvant du type hydrocarbure aromatique tel que le benzène ou le toluène avec distillation azéotropique de l'eau. La solution organique est éva- . porée à sec et le résidu est repris dans l'acide acétique
et chauffé à reflux sous azote. Après refroidissement/la solution acide est alcalinisée par dé la soude caustique, extraite par un solvant organique non miscible à l'eau du type hydrocarbure chloré aliphatique tel que le chlorure de méthylène, le chloroforme. Les phases organiques sont la-
<EMI ID=10.1>
à sec sous vide. Le résidu est chromatographié sur alumine pour donner l'ester (III).
Dans le second stade, l'ester (III) est traité par une base dans un solvant organique du type hydrocarbure aromatique tel que le benzène ou le toluène. La base utilisée est de préférence un alcoolate de sodium ou de
<EMI ID=11.1>
température du laboratoire sous atmosphère inerte. Après
une heure, la solution est additionnée d'une solution aqueuse de chlorure d'ammonium à 4 %. La phase organique est décantée et la phase aqueuse est extraite par un solvant organique du type hydrocarbure chloré tel que le chlorure de méthylène, le chloroforme. Les phases organiques sont ras- semblées, séchées sur sulfate de magnésium, distillées à
sec. Le résidu est chromatographié sur alumine pour donner les Chano - E - Homovincamones (IV).
<EMI ID=12.1>
(VI) peuvent être obtenus par différents procédés. L'acide
(V) obtenu par hydrolyse alcaline dans un milieu hydroun
<EMI ID=13.1>
substitué au sein d'un solvant organique en présence d'un:
carbonate alcalin insoluble dans le milieu réactionnel. La réaction est avantageusement effectuée par chauffage à reflux des réactifs, de préférence sous atmosphère inerte.
Comme solvants organiques utilisables; on peut citer les alcools anhydres et en particulier l'isopropanol. Le carbonate alcalin préféré est le carbonate de potassium.
<EMI ID=14.1>
peuvent également être obtenus.par transestérification; le produit de départ est l'ester (III). Comme catalyseur, on peut employer un alcoolate de métal alcalin mais la préfé-
<EMI ID=15.1>
ou au méthylate de sodium. -Le solvant peut être, un hydrecarbure aromatique. La réaction s'effectue généralement sous atmosphère inerte. Le produit peut être isolé parlavage à l'eau de la phase organique afin d'éliminer l'alcool non transformé. La phase organique est ensuite séchée sur sulfate de sodium et distillée à sec sous vide.
Le résidu.est chromatographié sur alumine.
Les exemples suivante illustrent de façon non limitative les caractéristiques de l'invention :
<EMI ID=16.1>
(II) et de 30 g de l'aldéhyde ester (I) dans 1500 ml de benzène anhydre est portée à reflux 4 heures 1/2 sous azote, <EMI ID=17.1>
Le benzène est alors évaporé sous vide. Le résidu est mis en solution dans 1500 ml d'acide acétique. La solution est maintenue à reflux 90 minutes sous azote ,
<EMI ID=18.1>
neutralisée par de la lessive de soude. Une extraction par trois fois 1 litre de chlorure de méthylène permet d'isoler.
<EMI ID=19.1>
61 g de produit brut . Ce produit/ est soumis à une chroma- . tographie sur colonne d'alumine (1.500 g), montée dans le chlorure de méthylène. 42 g d'un produit unitache, amorphe est élué au chlorure de méthylène.
<EMI ID=20.1>
<EMI ID=21.1>
<EMI ID=22.1>
<EMI ID=23.1>
<EMI ID=24.1>
16 g d'ester (III) sont ajoutés à 200 ml d'une solution de t-amylate de sodium dans le toluène, titrant 15 g de sodium par litre de toluène. Cette solu- tion est laissée 1 heure sous agitation à température ambiante, sous atmosphère d'azote^ 900 ml d'une solution
<EMI ID=25.1>
Le toluène est décanté et la phase aqueuse
est extraite par deux fois 500 ml de chlorure de méthylène. Les phases organiques sont rassemblées, séchées sur sul-
fate de magnésium, filtrées, distillées sous vide. On obtient :
<EMI ID=26.1>
<EMI ID=27.1> dans le chlorure de méthylène...
Au chlorure de méthylène, sont successivement
<EMI ID=28.1>
<EMI ID=29.1>
<EMI ID=30.1>
<EMI ID=31.1>
Exemple 3 : Hydrolyse basique de l'ester (III).
<EMI ID=32.1>
dans 350 ml d'éthanol sont additionnés de 2,5 g de soude caustique dans 150 ml d'eau et chauffés à reflux, sous atmosphère d'azote pendant 1 h 30. Après refroidissement, la solution est lavée l'éther, neutralisée par l'acide
<EMI ID=33.1>
La phase organique, lavée, séchée sur sulfate
<EMI ID=34.1>
<EMI ID=35.1>
Exemple 4 : Ester (VI) -R-R = morpholino.
<EMI ID=36.1>
fé à reflux pendant 5 heures sous atmosphère d'azote, puis filtré et évaporé à sec. L'huile obtenue est dissoute dans
250 ni de chlorure de méthylène et la solution organique est lavée par de l'eau. La phase chlorure de méthylène est alors extraite par 2 x 300 ml d'acide chlorhydrique 2 N.
La solution acide est alcalinisée et extraite par le chlorure de méthylène. Après évaporation de la solution organique, on obtient 10,4 g d'huile qui est chromatographiée sur alumine. Le mélange benzène-éther (90-10) élue 5,3 g d'ester unitache.
<EMI ID=37.1>
4,2
Spectre R.M.N. : 2,3-2,7 ; 3,6-3,8 ;/7-7,5 ; 8,3 ppm.
<EMI ID=38.1>
<EMI ID=39.1>
<EMI ID=40.1>
porte à reflux sous atmosphère d'azote et à l'abri de la lumière pendant 7 heures. Le mélange réactionnel.est ensuite
<EMI ID=41.1>
chée sur sulfata de sodium anhydre et distillée à sec sous
<EMI ID=42.1>
<EMI ID=43.1>
Exemple 6. : Ester (VI) R-R = pyrrolidino.
<EMI ID=44.1>
chloroéthylpyrrolidine et 2,44 g de carbonate de sodium sont chauffés à reflux sous atmosphère d'azote dans 50 ml d'isopropanol. En opérant comme dans l'exemple 4, on obtient 0,7 g d'ester unitache.
<EMI ID=45.1>
<EMI ID=46.1>
<EMI ID=47.1>
REVENDICATIONS
<EMI ID=48.1>
Procédé de préparation de Chano - E ......
Homovincamones caractérisé en ce que cette obtention a lieu
<EMI ID=49.1>
<EMI ID = 1.1>
new indole derivatives.
The presented invention which is due to Mr.
<EMI ID = 2.1>
in 1180 BRUSSELS (Belgium) relates to a synthesis process relating to the preparation of Chano - E - Homovincamones and aims at a set of operations leading to the production of new indole derivatives which constitute intermediate stages in the synthesis of Chano - E Homovincamones.
The present invention relates to obtaining
<EMI ID = 3.1>
to give the ester (III).
<EMI ID = 4.1>
In a second stage, the ester (III) is cyclized in the presence of an alkaline agent to give them.
<EMI ID = 5.1>
<EMI ID = 6.1>
The derivative (III) can in turn serve as a raw material for obtaining other new indole derivatives. By alkaline hydrolysis, the derivative (III) gives the corresponding acid (V) which can in turn, by reesterification, give N-disubstituted amino ethyl esters of general formula (VI) in which the R groups are alkyl radicals or together form with the nitrogen atom to which they are attached a heterocyclic group such as a
<EMI ID = 7.1>
<EMI ID = 8.1>
In more detail, the various stages of the invention are achieved as follows:
In the first stage, the aldehyde ester, (1)
<EMI ID = 9.1>
for 4-5 hours, in an aromatic hydrocarbon type solvent such as benzene or toluene with azeotropic distillation of water. The organic solution is evacuated. porée to dryness and the residue is taken up in acetic acid
and heated to reflux under nitrogen. After cooling / the acid solution is alkalized with caustic soda, extracted with an organic solvent immiscible with water of the chlorinated aliphatic hydrocarbon type such as methylene chloride or chloroform. The organic phases are the-
<EMI ID = 10.1>
dry under vacuum. The residue is chromatographed on alumina to give the ester (III).
In the second stage, the ester (III) is treated with a base in an organic solvent of the aromatic hydrocarbon type such as benzene or toluene. The base used is preferably a sodium or sodium alcoholate.
<EMI ID = 11.1>
laboratory temperature under inert atmosphere. After
one hour, the solution is added with a 4% aqueous solution of ammonium chloride. The organic phase is decanted and the aqueous phase is extracted with an organic solvent of the chlorinated hydrocarbon type such as methylene chloride or chloroform. The organic phases are combined, dried over magnesium sulphate, distilled at
dry. The residue is chromatographed on alumina to give Chano - E - Homovincamones (IV).
<EMI ID = 12.1>
(VI) can be obtained by different methods. Acid
(V) obtained by alkaline hydrolysis in a hydrous medium
<EMI ID = 13.1>
substituted in an organic solvent in the presence of a:
alkaline carbonate insoluble in the reaction medium. The reaction is advantageously carried out by heating the reactants under reflux, preferably under an inert atmosphere.
As usable organic solvents; there may be mentioned anhydrous alcohols and in particular isopropanol. The preferred alkaline carbonate is potassium carbonate.
<EMI ID = 14.1>
can also be obtained by transesterification; the starting material is the ester (III). As the catalyst, an alkali metal alcoholate can be employed, but it is preferred.
<EMI ID = 15.1>
or sodium methoxide. -The solvent may be an aromatic hydrocarbon. The reaction is generally carried out under an inert atmosphere. The product can be isolated by washing the organic phase with water in order to remove the unconverted alcohol. The organic phase is then dried over sodium sulphate and vacuum distilled to dryness.
The residue is chromatographed on alumina.
The following examples illustrate without limitation the characteristics of the invention:
<EMI ID = 16.1>
(II) and 30 g of the aldehyde ester (I) in 1500 ml of anhydrous benzene is brought to reflux for 4 1/2 hours under nitrogen, <EMI ID = 17.1>
The benzene is then evaporated off under vacuum. The residue is dissolved in 1500 ml of acetic acid. The solution is maintained at reflux for 90 minutes under nitrogen,
<EMI ID = 18.1>
neutralized with sodium hydroxide solution. Extraction with three times 1 liter of methylene chloride allows isolation.
<EMI ID = 19.1>
61 g of crude product. This product / is subjected to chroma-. tography on an alumina column (1,500 g) mounted in methylene chloride. 42 g of an amorphous unitache product is eluted with methylene chloride.
<EMI ID = 20.1>
<EMI ID = 21.1>
<EMI ID = 22.1>
<EMI ID = 23.1>
<EMI ID = 24.1>
16 g of ester (III) are added to 200 ml of a solution of sodium t-amylate in toluene, titrating 15 g of sodium per liter of toluene. This solution is left for 1 hour with stirring at room temperature, under a nitrogen atmosphere ^ 900 ml of a solution.
<EMI ID = 25.1>
The toluene is decanted and the aqueous phase
is extracted with twice 500 ml of methylene chloride. The organic phases are combined, dried over sul-
magnesium fate, filtered, vacuum distilled. We obtain :
<EMI ID = 26.1>
<EMI ID = 27.1> in methylene chloride ...
With methylene chloride, are successively
<EMI ID = 28.1>
<EMI ID = 29.1>
<EMI ID = 30.1>
<EMI ID = 31.1>
Example 3: Basic hydrolysis of ester (III).
<EMI ID = 32.1>
2.5 g of caustic soda in 150 ml of water are added to 350 ml of ethanol and heated to reflux under a nitrogen atmosphere for 1 hour 30 minutes. After cooling, the solution is washed with the ether and neutralized with acid
<EMI ID = 33.1>
The organic phase, washed, dried over sulfate
<EMI ID = 34.1>
<EMI ID = 35.1>
Example 4: Ester (VI) -R-R = morpholino.
<EMI ID = 36.1>
Fe at reflux for 5 hours under a nitrogen atmosphere, then filtered and evaporated to dryness. The oil obtained is dissolved in
250 μl of methylene chloride and the organic solution is washed with water. The methylene chloride phase is then extracted with 2 x 300 ml of 2N hydrochloric acid.
The acidic solution is alkalinized and extracted with methylene chloride. After evaporation of the organic solution, 10.4 g of oil are obtained which is chromatographed on alumina. The benzene-ether mixture (90-10) elutes 5.3 g of unitache ester.
<EMI ID = 37.1>
4.2
R.M.N. : 2.3-2.7; 3.6-3.8; / 7-7.5; 8.3 ppm.
<EMI ID = 38.1>
<EMI ID = 39.1>
<EMI ID = 40.1>
refluxed under a nitrogen atmosphere and protected from light for 7 hours. The reaction mixture is then
<EMI ID = 41.1>
cured on anhydrous sodium sulphate and dry distilled under
<EMI ID = 42.1>
<EMI ID = 43.1>
Example 6: Ester (VI) R-R = pyrrolidino.
<EMI ID = 44.1>
chloroethylpyrrolidine and 2.44 g of sodium carbonate are heated to reflux under a nitrogen atmosphere in 50 ml of isopropanol. By operating as in Example 4, 0.7 g of unitache ester is obtained.
<EMI ID = 45.1>
<EMI ID = 46.1>
<EMI ID = 47.1>
CLAIMS
<EMI ID = 48.1>
Preparation process for Chano - E ......
Homovincamones characterized in that this obtaining takes place
<EMI ID = 49.1>
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE145795A BE816759A (en) | 1974-06-24 | 1974-06-24 | Chano-e-homovincamones and indoles prepn. - from n-methyl-tryptamines and methyl 4-formyl-hexanoate |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE145795A BE816759A (en) | 1974-06-24 | 1974-06-24 | Chano-e-homovincamones and indoles prepn. - from n-methyl-tryptamines and methyl 4-formyl-hexanoate |
| BE816759 | 1974-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE816759A true BE816759A (en) | 1974-10-16 |
Family
ID=25647964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE145795A BE816759A (en) | 1974-06-24 | 1974-06-24 | Chano-e-homovincamones and indoles prepn. - from n-methyl-tryptamines and methyl 4-formyl-hexanoate |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE816759A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442236A1 (en) * | 1978-11-22 | 1980-06-20 | Tanabe Seiyaku Co | |
| US4617305A (en) * | 1983-02-25 | 1986-10-14 | Omnichem, S.A. | 4-alkylindolonaphthyridines and their therapeutical application |
-
1974
- 1974-06-24 BE BE145795A patent/BE816759A/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442236A1 (en) * | 1978-11-22 | 1980-06-20 | Tanabe Seiyaku Co | |
| US4617305A (en) * | 1983-02-25 | 1986-10-14 | Omnichem, S.A. | 4-alkylindolonaphthyridines and their therapeutical application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: OMNIUM CHIMIQUE S.A. Effective date: 19860630 |