CS217955B2 - Method of making the new cis ev.trans 2-aminocyclohexac - Google Patents
Method of making the new cis ev.trans 2-aminocyclohexac Download PDFInfo
- Publication number
- CS217955B2 CS217955B2 CS359176A CS359176A CS217955B2 CS 217955 B2 CS217955 B2 CS 217955B2 CS 359176 A CS359176 A CS 359176A CS 359176 A CS359176 A CS 359176A CS 217955 B2 CS217955 B2 CS 217955B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- acid
- ethanol
- formula
- trans
- cis
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title description 3
- -1 e.g. OH Chemical class 0.000 claims abstract description 41
- 239000002253 acid Substances 0.000 claims abstract description 37
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 19
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- 239000002904 solvent Substances 0.000 claims description 17
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 16
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
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- 239000003795 chemical substances by application Substances 0.000 claims description 9
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 8
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- 230000005494 condensation Effects 0.000 claims description 5
- HSDAJNMJOMSNEV-UHFFFAOYSA-N benzyl chloroformate Chemical compound ClC(=O)OCC1=CC=CC=C1 HSDAJNMJOMSNEV-UHFFFAOYSA-N 0.000 claims description 4
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 claims description 4
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- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 3
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 claims description 3
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- 238000002360 preparation method Methods 0.000 claims description 3
- 230000010933 acylation Effects 0.000 claims description 2
- 238000005917 acylation reaction Methods 0.000 claims description 2
- 125000004448 alkyl carbonyl group Chemical group 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
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- 125000005059 halophenyl group Chemical group 0.000 claims description 2
- 239000012442 inert solvent Substances 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
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- 239000011574 phosphorus Substances 0.000 claims description 2
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- 125000003944 tolyl group Chemical group 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
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- RAIPHJJURHTUIC-UHFFFAOYSA-N 1,3-thiazol-2-amine Chemical class NC1=NC=CS1 RAIPHJJURHTUIC-UHFFFAOYSA-N 0.000 claims 1
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- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methyl-N-phenylamine Chemical class CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 claims 1
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- 125000003118 aryl group Chemical group 0.000 abstract 5
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- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 2
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- 125000001072 heteroaryl group Chemical group 0.000 abstract 1
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- 150000004681 metal hydrides Chemical class 0.000 abstract 1
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- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- SLZHLQUFNFXTHB-UHFFFAOYSA-M sodium;5-butan-2-yl-5-ethyl-2-sulfanylidenepyrimidin-3-ide-4,6-dione Chemical compound [Na+].CCC(C)C1(CC)C([O-])=NC(=S)NC1=O SLZHLQUFNFXTHB-UHFFFAOYSA-M 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- VMKIXWAFFVLJCK-UHFFFAOYSA-N tert-butyl 3-oxoazetidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CC(=O)C1 VMKIXWAFFVLJCK-UHFFFAOYSA-N 0.000 description 1
- QERYCTSHXKAMIS-UHFFFAOYSA-N thiophene-2-carboxylic acid Chemical compound OC(=O)C1=CC=CS1 QERYCTSHXKAMIS-UHFFFAOYSA-N 0.000 description 1
- GKASDNZWUGIAMG-UHFFFAOYSA-N triethyl orthoformate Chemical compound CCOC(OCC)OCC GKASDNZWUGIAMG-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/36—Radicals substituted by singly-bound nitrogen atoms
- C07D213/40—Acylated substituent nitrogen atom
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/72—Nitrogen atoms
- C07D213/75—Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
- C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
- C07D241/40—Benzopyrazines
- C07D241/44—Benzopyrazines 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 carbon atoms of the hetero ring
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three 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
- C07D277/38—Nitrogen atoms
- C07D277/44—Acylated amino or imino radicals
- C07D277/46—Acylated amino or imino radicals by carboxylic acids, or sulfur or nitrogen analogues thereof
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
- C07D277/62—Benzothiazoles
- C07D277/68—Benzothiazoles 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 in position 2
- C07D277/82—Nitrogen atoms
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Abstract
Description
Vynález se týká způsobu výroby nových cis popřípadě trans-2-aminocyklohexankarboxylových nebo cis popřípadě trans 2-aminocyklopentankarboxylových kyselin obecného vzorce I.The invention relates to a process for the preparation of novel cis or trans-2-aminocyclohexanecarboxylic acids or cis or trans 2-aminocyclopentanecarboxylic acids of the general formula I.
Při výrobě se postupuje tak, že se 2-aminocy.klo(c5_6) alkan karboxylová kyselina acyluje karboxylovou kyselinou, anhydridem karboxylové kyseliny, halogenidem· kyseliny nebo benzylo-xykarbonylhalogenidem a získaná 2-(a.mino)~cykl'otalkankarboxylová kyselina se amiduje v přítomnosti kondenzačního produktu aminu -a popřípadě se odstraní skupina R4 a ' získané sloučeniny obecného- vzorce I se popřípadě převedou ve své adiční soli -reakcí s kyselinou.In the production process, the 2-aminocyclo (c5-6) alkane carboxylic acid is acylated with carboxylic acid, carboxylic anhydride, acid halide or benzyloxycarbonyl halide and the resulting 2- (a.mino) -cyclotalkanecarboxylic acid is amidated. in the presence of the amine condensation product - and optionally the R 4 group is removed and the compounds of formula I obtained are optionally converted in their acid addition salts by reaction with an acid.
Získané sloučeniny obecného vzorce . I mají cenné farmakologické účinky, v první řadě protizánětlivé, dále účinky snižující horečku, tišící bolest a umocňující narkotické účinky.Compounds of general formula obtained. They also have valuable pharmacological effects, primarily anti-inflammatory, fever-reducing, pain-relieving and potentiating narcotic effects.
Vynález se týká způsobu výroby nových stereoisomerních 2-aminocykloalkankarboxylových kyselin a jejich derivátů.The invention relates to a process for the preparation of novel stereoisomeric 2-aminocycloalkanecarboxylic acids and derivatives thereof.
Nové sloučeniny odpovídající obecnému vzorci INovel compounds corresponding to formula I
kde n znamená celé číslo 1 nebo 2where n is an integer of 1 or 2
R1 je skupina —NH—R3, kdeR 1 is -NH-R 3 where
R3 představuje fenyl-Ci-4-alkylovou skupinu, thiazolylovou skupinu, halogenfenylovou skupinu, methylfenylovou skupinu, trifluormethylovou skupinu,R 3 represents phenyl-C 1-4 -alkyl, thiazolyl, halophenyl, methylphenyl, trifluoromethyl,
R2 znamená vodík, benzyloxykarbonylovou skupinu, formylovou skupinu nebo Ci-4-alkyl.karbonylovou skupinu nebo benzylovou skupinu.R 2 represents hydrogen, benzyloxycarbonyl, formyl or C 4 alkyl.karbonylovou or benzyl.
Sloučeniny obecného vzorce I vykazují cenné farmakologické účinky, v první řadě účinky brzdící záněty, snižující horečku, tišící bolest a umocňující narkotické účinky. Toto je překvapující, neboť z literatury byly až dosud u příbuzných sloučenin známy zcela jiné nebo vůbec žádné účinky. V USA patentním spisu č. 3 510 492 je popsán antidiabetický a diuretický účinek 2-anilinocykloalkylaminů a 2-(anilinometyl)-cy,kloalkylaminů. Několik derivátů 2-a'minocykloalkankairboxylové kyseliny, tvciřících předmět vynálezu, je sice zmíněno jako intermediáry, o jejich farmakologickém účinku ale neexistuje žádná zpráva. Ačkoliv jsou v citovaném patentním spise uvedeny cis a trans deriváty, nehodí se tam popsaný způsob pro výrobu stereojednotných sloučenin, jak to dokázaly vlastní reprodukované pokusy.The compounds of formula I exhibit valuable pharmacological effects, in particular inflammatory-inhibiting, fever-reducing, pain-relieving and potentiating narcotic effects. This is surprising since the literature has so far known quite different or no effects at all for related compounds. U.S. Pat. No. 3,510,492 discloses the antidiabetic and diuretic effect of 2-anilinocycloalkylamines and 2- (anilinomethyl) -cy , cloalkylamines. While several of the 2-aminocycloalkanecarboxylic acid derivatives of the present invention are mentioned as intermediates, there is no indication of their pharmacological activity. Although cis and trans derivatives are mentioned in the cited patent, the process described therein is not suitable for the production of stereospecific compounds, as has been demonstrated by the actual reproduced experiments.
Z maďarského patentního spisu č. 15i6 542 jsou známy deriváty cyklohexyl-(methylámmcy.klohexylaminu a 2-aminometyl)-cyklohexylaminu, které se mohou používat jako uklidňující prostředky a jako· prostředky pro léčení epilepsie. Shora popsané farmakologické účinky sloučenin obecného vzorce I jsou proto překvapující. Podstata způsobu výroby sloučenin obecného- vzorce I podle vynálezu spočívá v tom, že se 2-aminocyklohexankarboxylová kyselina nebo 2-aminocyklopentankarboxylová kyselina obecného vzorce IIHungarian Patent Specification No. 1516642 discloses cyclohexyl- (methylamino-cyclohexylamine and 2-aminomethyl) -cyclohexylamine derivatives which can be used as tranquillizers and as agents for the treatment of epilepsy. The pharmacological effects of the compounds of formula I described above are therefore surprising. The process according to the invention is characterized in that the 2-aminocyclohexanecarboxylic acid or the 2-aminocyclopentanecarboxylic acid II
(II) karboxylové kyseliny, halogenidem kyseliny nebo benzyloxykarbonylhalogenidem a získaná 2- (acylamino) -cykloalkankarboxylová kyselina obecného vzorce II a / CH-COOH (CH.L I .(II) a carboxylic acid, acid halide or benzyloxycarbonyl halide and the obtained 2- (acylamino) -cycloalkanecarboxylic acid of formula (II) and / CH-COOH (CH.L.
ch-nh-r* \CH£^ f Ha) kde n má shora uvedený význam a R4 je benzyloxykarbonylová skupina, formylová skupina nebo Ci-4-alkylkarbonylová skupina, v přítomnosti kondenzačního prostředku a aminu obecného vzorce IIIwherein n is as defined above and R 4 is a benzyloxycarbonyl, formyl or C 1-4 alkylcarbonyl group, in the presence of a condensation agent and an amine of formula III
R3—NH2 [III], kde R3 má shora uvedený význam, amiduje a popřípadě se odstraní skupina R4 a získané sloučeniny obecného· vzorce I se popřípadě převedou ve své adiční soli.R 3 -NH 2 [III], wherein R 3 is as defined above, amidates and optionally removes the group R 4 and the resulting compounds of formula I are optionally converted into their addition salts.
Jako· acylačiní prostředek se s výhodou používá kyselina mravenčí, benzyloxykarbonylchlorid nebo anhydrid kyseliny octové.As the acylating agent preferably formic acid, benzyloxycarbonyl chloride or acetic anhydride is used.
Reakce se provádí s výhodou ve vhodném rozpouštědle, například ve vodě, benzenu, chloroformu, tetrachlormetanu. Acylační činidlo se může přidávat ale také bez rozpouštědla. Pro· vázání kyselin, vznikajících při acylaci se jako akceptory kyselin používají anorganické a organické báze. Produkt se vylučuje buď při ochlazení reakční směsi z této v ikrystai-cké formě, nebo se, jestliže je přítomen rozpuštěný jako· sodná sůl, vysráží okyselením. Krystaly se oddělí filtrací a v případě potřeby se čistí překrystalováním.The reaction is preferably carried out in a suitable solvent, for example water, benzene, chloroform, carbon tetrachloride. The acylating agent may also be added without solvent. Inorganic and organic bases are used as acid acceptors for the binding of acids resulting from acylation. The product precipitates either upon cooling of the reaction mixture from this in crystalline form or, if present as a sodium salt, precipitates by acidification. The crystals are collected by filtration and, if necessary, purified by recrystallization.
Podle jiné fo-rmy provedení způsobu podle vynálezu se 2-(acylamino j-cykloalkankarboxylové kyseliny obecného vzorce II nechají zreagovat v přítomnosti chloridu kyselina a báze, N,N‘-disubstituovaného karbamidu, popřípadě jiného kondenzačního· činidla jako například halogenidu fosforu s aminy obecného vzorce III. Reakce se provádí s výhodou v inertním rozpouštědle, například etyléteru, tetrahydrofuranu, dioxanu, benzenu nebo· jiného· aromatického rozpouštědla. Reakční teplota závisí na reakťivno-sti složek a pohybuje se mezi —20 až 153 °C. Vznikající produkty se izolují filtrací, popřípadě dekantací a následující extrakcí a překrystalováním, popřípadě, jestliže jsou přítomny rozpuštěné, oddestilováváním rozpouštědla.In another embodiment of the process of the present invention, the 2- (acylamino) -cycloalkanecarboxylic acids of formula (II) are reacted in the presence of an acid and base chloride, an N, N'-disubstituted carbamide or another condensation agent such as phosphorus halide with amines The reaction is preferably carried out in an inert solvent such as ethyl ether, tetrahydrofuran, dioxane, benzene or another aromatic solvent, the reaction temperature being dependent on the reactivity of the components and is between -20 to 153 ° C. by filtration, optionally decanting, followed by extraction and recrystallization, or, if dissolved, by distilling off the solvent.
Podle další formy provedení způsobu podle vynálezu se amidy 2-(benzyloxykarbonylamino) -cykloalkankarboxylové kyseliny, obecného vzorce II, nechají zreagovat s bromovodíkem, s výhodou v roztoku, okyseleném kyselinou octovou na amidy 2-aminokde n a R1 mají shora uvedený význam acyluje karboxylovou kyselinou, anhydridem cyklcalkankarboxylové kyseliny, obecného vzorce I. Reakční teplota činí s výhodou asi —6 až 30 °C. Reakční směs se doplní éterem, načež se vyloučí hydrobromid sloučeniny obecného vzorce I. Hydrobromid se v případě, že se vyloučí krystalický, oddělí filtrací, jestliže je to olejovitý produkt, oddělí se od reakční směsi rekantací. Surový hydrobromid se čistí překrystalováním a/nebo se z něj uvolní báze, která se popřípadě může dále čistit. Báze se může uvolnit ve vodném roztoku uhličitanem sodným, velmi výhodně se uvolnění báze může také provádět pomocí iontcměničů.According to another embodiment of the invention, the amides of 2- (benzyloxycarbonylamino) -cykloalkankarboxylové acid of formula II are reacted with hydrogen bromide, preferably in solution, acidified with acetic acid to amides 2-aminokde on R1 are as defined above is acylated with a carboxylic acid The cyclic alkanecarboxylic acid anhydride of formula (I). The reaction temperature is preferably about -6 to 30 ° C. The reaction mixture is supplemented with ether, whereupon the hydrobromide of the compound of formula (I) is precipitated. The crude hydrobromide is purified by recrystallization and / or the base is liberated therefrom, optionally further purified. The base can be released in aqueous solution with sodium carbonate, very preferably the base can also be liberated by means of ion exchangers.
Podle další formy provedení způsobu podle vynálezu se cis a trans amidy 2-aminocykloalkankarboxylové kyseliny obecného vzorce II vaří v kyselině mravenčí nebo se zahřívají ve směsi, sestávající z kyseliny mravenčí a kyseliny octové, přičemž se získají cis, popřípadě trans amidy formylaminocykloalkankarboxylové kyseliny obecného vzorce I. Při provádění rekce se jako rozpouštědlo s výhodou používá samotné formylační agens, tedy kyselina mravenčí, popřípadě směs, sestávající z kyseliny mravenčí a kyseliny octové. Mc-hou se ale používat i obvyklá organická rozpouštědla, jako chlorované alkány, aromatické sloučeniny atd. Reakce se s výhodou provádí při 30 až 110 °C. Při ochlazení reakční směsi se vyloučí vzniklý produkt všeobecně v krystalické formě a může se oddělit filtrací. Jestliže produkt nekrystaluje, pak se reakční směs odpaří a zbytek se popřípadě překrystaluje.According to another embodiment of the process according to the invention, the cis and trans amides of 2-aminocycloalkanecarboxylic acid of formula II are cooked in formic acid or heated in a mixture consisting of formic acid and acetic acid to obtain cis and trans amides of formylaminocycloalkanecarboxylic acid In carrying out the reaction, the formulating agent itself, i.e. formic acid or a mixture consisting of formic acid and acetic acid, is preferably used as the solvent. However, conventional organic solvents such as chlorinated alkanes, aromatic compounds, etc. may also be used. The reaction is preferably carried out at 30 to 110 ° C. Upon cooling of the reaction mixture, the product formed is generally in crystalline form and can be separated by filtration. If the product does not crystallize, the reaction mixture is evaporated and the residue is optionally recrystallized.
PřikladlHe did
14,32 g (0,1 molu] cis-2-aminocyklohexankařboxylové kyseliny se rozpustí v 50· ml 2 N vodného ro-ztoku louhu sodného. Roztek se cchladí na 0 °C a za míchání se přikape současně 18,77 g (0,11 molu) benzy loxykarbonylchlcridu a 50 ml 2 N louhu sodného. Při tomto paralelním přídavku je nutno· dbát na to·, že reakční směs musí být vždy slabě alkalická. Reakční směs se potom míchá 1 hodinu při 0 °C, potom 4 hodiny při teplotě místnosti. Potom se extrahuje 4 X 50 ml éteru, aby se odstranil nezreagovaný benzyloxykarbonylchlorid. Oddělená vodná fáze se okyselí kyselinou solnou, zředěnou v poměru 1: 1, vyloučený produkt se odfiltruje a promyje vodou. Po překrystalování z etanolu se získá 23,7 g (85,47 %) cis-(2- (benzy loxyíkarbony lamino ] -cyklohexan karboxylové kyseliny ve formě bílé krystalické látky, která taje při 127 až 129 °C.14.32 g (0.1 mol) of cis-2-aminocyclohexanecarboxylic acid are dissolved in 50 ml of a 2 N aqueous solution of sodium hydroxide solution and the solution is cooled to 0 DEG C. and 18.77 g (0) are added dropwise while stirring. (11 moles) benzyloxycarbonyl chloride and 50 ml of 2 N sodium hydroxide solution, in which case the reaction mixture must always be slightly alkaline, and the reaction mixture is stirred at 0 DEG C. for 1 hour, then for 4 hours. It is extracted with 4 X 50 ml of ether to remove unreacted benzyloxycarbonyl chloride, the separated aqueous phase is acidified with 1: 1 hydrochloric acid, the precipitated product is filtered off and washed with water. 7 g (85.47%) of cis- (2- (benzyloxycarbonylamino) -cyclohexane carboxylic acid as a white crystalline solid melting at 127-129 ° C.
Pro C15H19NO4 vypočteno:For C15H19NO4 calculated:
64,97 % C, 6,91 % H, 5,05 % N;% C, 64.97;% H, 6.91;% N, 5.05;
nalezeno:found:
64,86 % C, 7,01 % H, 5,08 % N.H, 7.01; N, 5.08.
Příklad 2Example 2
Ze 14,32 g (0,1 molu) trans-2-aminocyklohexankarborylové kyseliny se vyrobí způsobem, popsaným v příkladě 1 v 9.3%ním výtěžku trans-2- [ benzyloxykarbonylamrno) -cyklohexankarboxylová kyselina, která taje při 145 až 147 °C.From 14.32 g (0.1 mol) of trans-2-aminocyclohexanecarboric acid was prepared as described in Example 1 in 9.3% yield of trans-2- [benzyloxycarbonylamino] -cyclohexanecarboxylic acid, melting at 145-147 ° C.
Pro C15H19NO4 vypočteno:For C15H19NO4 calculated:
64,97 % C,64.97% C,
6,91 % H, 5,05 % N;H, 6.91; N, 5.05;
nalezeno:found:
65,1-5 % C, 7,09 % H, 4,99 % N.H, 7.09; N, 4.99.
Příklad 3Example 3
0,02 molu cis, popřípadě trans 2-(benzy 1oxykarbonylaminoj-cyklohexankarboxylové kyseliny se rozpustí v 70 ml bezvodého tetrahydrofurainu. Roztok se ochladí na —10 CC a za míchání a chlazení se doplní 0,02 molu trietylaminu a 0,02 molu isobutyloxykarbonylchloridu. Směs se míchá 2 až 3 minuty. Potom se za dalšího míchání a chlazení přidá 0,02 molu trietylaminu ve 20 ml bezvodého· tetrahydrofuranu, ochlazeného· na —10 °C. Reakční směs se míchá při —5 až —10 °C hodin a potom se nechá stát při teplotě místnosti 15 hodin. Zbytek, získaný po odpaření, se vytřepává 20 minut ve směsi petroléteru a vody) jako· organické rozpouštědlo se může také použít dietyléter nebo benzen). Potom se zfiltruje, získaná pevná látka se digeruje 5 minut studeným 10%ním louhem sodným. Potom se znovu zfiltruje a odfiltrovaný produkt se promývá až do neutrální reakce vodou.0.02 moles of cis or trans 2- (benzyloxycarbonylamino) -cyclohexanecarboxylic acid are dissolved in 70 ml of anhydrous tetrahydrofuran, cooled to -10 DEG C. and added with stirring and cooling to 0.02 moles of triethylamine and 0.02 moles of isobutyloxycarbonyl chloride. The mixture was stirred for 2-3 minutes, then 0.02 mol of triethylamine in 20 ml of anhydrous tetrahydrofuran cooled to -10 ° C was added with further stirring and cooling. and then left to stand at room temperature for 15 hours. The residue obtained after evaporation is shaken for 20 minutes in a mixture of petroleum ether and water) as diethyl ether or benzene). It is then filtered, and the solid obtained is digested with cold 10% sodium hydroxide solution for 5 minutes. It is then filtered again and the filtered product is washed with water until neutral.
Vlastnosti tímto způsobem vyrobených cis popřípadě trans amidů 2-(benzylkarbonylaminoj-cyklohexankarboxylcvé kyseliny jsou uvedeny v tabulkách 1 a 2.The properties of 2- (benzylcarbonylamino) -cyclohexanecarboxylic acid cis or trans amides prepared in this way are shown in Tables 1 and 2.
Tabulka 1Table 1
Teploty ' tání, výsledky analýz a výtěžky N-substituovaných cis-amidů-2-(benzyloxykar-Melting points, analysis results and yields of N-substituted cis-amides-2- (benzyloxycarbamides)
*) vyrobeno metodou dicyklohexylkarbodiimidoviou*) produced by dicyclohexylcarbodiimide method
Teploty tání, výsledky analýzy a výtěžky N-substituovaných trans-amidů 2-(benzyloxykarbonylaminoj-cyklohexankarboxylové kyseliny ’Melting points, analysis results and yields of N-substituted 2- (benzyloxycarbonylamino) cyclohexanecarboxylic acid trans-amides ’
Tabulka 2 amidTable 2 amide
Příklad 4Example 4
K 0,02 molu cis, popřípadě trans amiduTo 0.02 mol of cis or trans amide
2- (benzyloxykarbonylamino) -cyklohexankarboxylové kyseliny se přidá 40· ml 20% ního roztoku bro-moVodíku, okyseleného· ledovou kyselinou octovou, Reakční směs se nechá stát jednu hodinu při teplotě místnosti a poiom se doplní éterem. Tím se vyloučí amid 2-aminocyklohexan hydrobromidu karboxylové kyseliny ve formě olejovité látky, která se přivede ke krystalizaci třením skleněnou tyčinkou. Nyní krystalická látka se odfiltruje a promyje éterem. Báze se uvolní 10%ním roztokem uhličitanu sodného.2- (Benzyloxycarbonylamino) -cyclohexanecarboxylic acid was added with 40 ml of a 20% strength solution of hydrogen bromide acidified with glacial acetic acid. This eliminates the 2-aminocyclohexane carboxylic acid hydrobromide amide in the form of an oily substance which is crystallized by rubbing with a glass rod. Now the crystalline material is filtered off and washed with ether. The base was liberated with 10% sodium carbonate solution.
V případech, kdy se krystalizace hydrobromidu nepodaří, uvolní se báze z olejovité látky pomocí iontoměničů [Varion/AD iontoměničová pryskyřice],In cases where the crystallization of the hydrobromide fails, the base is released from the oily substance using ion exchange resins [Varion / AD ion exchange resin],
K tomuto ' účelu se aniontová pryskyřice Varion AD převede 0,5 N louhem sodným v OH--f^i,mu a roztok amidu 2-aminocyklohexankarboxylové kyseliny nasazený se směsí metanolu s vodou, připravenou v poměru 1:1 nanese na sloupec. Eluuje se toutéž směsí rozpouštědla. Eluát se odpaří a odparek se překrystaluje.This' end, the anionic resin Varion AD converted with 0.5 N sodium hydroxide solution in OH - f ^ i, mu and a solution of 2-aminocyclohexane carboxylic acid, seeded with a mixture of methanol and water, prepared in a ratio of 1: 1 is applied to the column. Elute with the same solvent mixture. The eluate was evaporated and the residue was recrystallized.
Vlastnosti tímto způsobem vyrobeného amidu 2-amlnocyklohexankarboxylové kyseliny jsou shrnuty v tabulkách 3 a 4.The properties of the 2-aminocyclohexanecarboxylic acid amide thus produced are summarized in Tables 3 and 4.
Tabulka 3Table 3
Teploty tání, výsledky analýz a výtěžky N-substituovaných cis amidů 2-aminocyklohexankarboxylové kyselinyMelting points, analysis results and yields of N-substituted 2-aminocyclohexanecarboxylic acid cis amides
Taibulka 4Taibulka 4
Teploty tání, výsledky analýzy a výtěžky N-siUbstituovaných trans-amidů karboxylové kyselinyMelting points, analysis results and yields of N-substituted carboxylic acid trans-amides
2-cyklohexan-2-cyclohexane-
amidamid
Příklad 5Example 5
Směs, sestávající ze 41,6 g [0,15 molu) cis-2- (benzyloxykarbonylamino) -cy klohexankarboxylové kyseliny, 30,05 g (0,.15 molu) dicyklohexylkarbodiimidu a 19,14 g p-chloranilinu ve 420 ml tetrahydrofuranu se nechá jeden den stát. Potom se vyloučený N,N‘-dicyklohexylkarbamid odfiltruje a promyje tetrahydrofuranem. Promývací kapalina a filtrát se spojí, odpaří a zbývajícíchMixture consisting of 41.6 g (0.15 mol) of cis-2- (benzyloxycarbonylamino) -cyclohexanecarboxylic acid, 30.05 g (0.15 mol) of dicyclohexylcarbodiimide and 19.14 g of p-chloroaniline in 420 ml of tetrahydrofuran is allowed to stand one day. The precipitated N, N,-dicyclohexylcarbamide is then filtered off and washed with tetrahydrofuran. The wash liquid and filtrate were combined, evaporated and the remaining
67,5 g pryskyřičnaté látky se překrystaluje ze 100 ml éteru. Krystaly se odfiltrují a znovu překrystalují z 500 ml éteru. Tímto způsobem se získá 31,35 g (54,03%) p-chloranilidu cis-2- (benzyloxykarbonylamino) -cyklohexankarboxylové kyseliny, který taje při 177 až 179 CC.The resin (67.5 g) was recrystallized from ether (100 ml). The crystals were filtered off and recrystallized from 500 ml of ether. There was thus obtained cis-2- (benzyloxycarbonylamino) -cyclohexanecarboxylic acid p-chloroanilide (31.35 g, 54.03%) melting at 177-179 ° C.
Pro C72H23N2O3CI vypočteno:Calcd for C72H23N2O3Cl:
65,2 % C, 5,99 % H, 7,2/4 % N;% C, 65.2;% H, 5.99;% N / 7.2;
nalezeno:found:
65,41 % C, 5,39 % H, 7,57 % N.H, 5.39; N, 7.57.
Matečný louh se zahustí asi na 100 ml a ochladí. Tímto způsobem se získá 15,25 g (2,02 %) N-cis-2- (benzyloxykarbonylamino) -l-cyklohexylkarbonyl-N,N‘-dicyklohexylkarbamidu, který taje při 113 až 115 °C .The mother liquor is concentrated to about 100 ml and cooled. 15.25 g (2.02%) of N-cis-2- (benzyloxycarbonylamino) -1-cyclohexylcarbonyl-N, N‘-dicyclohexylcarbamide melting at 113-115 ° C are obtained.
Pro- C28H41N3O4 vypočteno:For - C28H41N3O4 calculated:
69,63 % C, 8,54 % H, 8,69 % N;% C, 69.63;% H, 8.54;% N / 8.69;
nalezeno:found:
69,22 % C, 8,65 % H, 8,65 % N.% H, 8.65;% N, 8.65.
P ř í к 1 a d 6Example 1 a d 6
К 4,3 g (0,05 molu) cis-2-aminocyklohexankarboxylové kyseliny se přidá 5,5'2 g (0,12 molu) 98 až 100%ní kyseliny mravenčí a 12,35 g (0,12 molu) anhydridu kyselinu octové. Směs se udržuje 90 minut při 35 až 40 °C. Při tom přejdou látky do· roztoku a po několika minutách se začnou vylučovat krystaly. Krystalující směs se nechá stát 1 den při 0 °C. Potom se krystaly odfiltrují. Tímto způsobem se získá 3,8 g cis-2- (f ormylaminO') -cyklohexankarboxylové kyseliny. Produkt taje při 206 až 208 °C.To 4.3 g (0.05 mol) of cis-2-aminocyclohexanecarboxylic acid add 5.5-2 g (0.12 mol) of 98-100% formic acid and 12.35 g (0.12 mol) of anhydride acetic acid. The mixture was held at 35-40 ° C for 90 minutes. In this process, the substances go into solution and after a few minutes crystals begin to precipitate. The crystallization mixture was allowed to stand at 0 ° C for 1 day. The crystals are then filtered off. 3.8 g of cis-2- (formyl-amino) cyclohexanecarboxylic acid are thus obtained. The product melts at 206-208 ° C.
Pro· C8H13NO3 vypočteno:For C8H13NO3 calculated:
56,13 % C, 7,65 % H, 8,18 % N; П Д 1 CV7 P ΤΊ П’C 56.13, H 7.65, N 8.18; П Д 1 CV7 P ΤΊ П ’
56,33 % C, 7,76 % H, 7,72 % N.% H, 7.76;% N, 7.72.
Příklad 7Example 7
0,02 molu příslušně substituovaného cis, popřípadě trans amidu aminocyklohexankarbo-xylové kyseliny se rozpustí v 5,52 g (0,12 molu) kyseliny mravenčí.0.02 mol of an appropriately substituted aminocyclohexanecarboxylic acid cis or trans amide is dissolved in 5.52 g (0.12 mol) of formic acid.
К roztoku se přidá 12,35 g (0,12 molu) anhydridu kyseliny octové. Směs se nechá stát 2 hodiny při 35 až 40 °C. Krystaly, vylučující se při ochlazení se odfiltrují a tak dlouho překrystalovávají, pokud teplota tání nezůstane konstantní. Sloučeniny získané tímto způsobem jsou shrnuty v tabulce 5.To the solution was added 12.35 g (0.12 mol) of acetic anhydride. The mixture was aged at 35-40 ° C for 2 hours. The crystals deposited upon cooling are filtered off and recrystallized until the melting point remains constant. The compounds obtained in this way are summarized in Table 5.
Tabulka 5Table 5
Teploty tání, výtěžky a výsledky analýz N-substituovaných cis a trans amidů 2-(formylamino) -cyklohexankarboxylové kyselinyMelting points, yields and analysis results of 2- (formylamino) -cyclohexanecarboxylic acid N-substituted cis and trans amides
Konfigurace:Configuration:
„a“ vzniká při íormylaci trietylortomravenčanem „b“ = konfigurace cis „c“ = konfigurace trans"A" is formed when triethyl orthoformate is formulated "b" = cis configuration "c" = trans configuration
Příklad 8Example 8
14,32 g (0,1 molu) cis-2-aminccyiklohexankarboxylové kyseliny se rozpustí za míchání v 60 ml vody а к roztoku se přidá 15.,2 g (0,25 molu) anhydridu kyseliny octové. Směs se míchá 1 hodinu a potom se nechá stát 15 hodin při 0 až + 5 °C. Vyloučené krystaly se odfiltrují a překrystalují z etanolu. Tímto způsclbem se získá 10,92 gramu (59 %) cis-2-(acetylam’no)-'Cyklohexankarboxylové kyseliny, která taje při 149 až 151 °C.14.32 g (0.1 mol) of cis-2-aminocyclohexanecarboxylic acid are dissolved in 60 ml of water with stirring and 15.2 g (0.25 mol) of acetic anhydride are added to the solution. The mixture was stirred for 1 hour and then allowed to stand at 0 to + 5 ° C for 15 hours. The precipitated crystals are filtered off and recrystallized from ethanol. 10.92 g (59%) of cis-2- (acetylamino) -cyclohexanecarboxylic acid melting at 149 DEG-151 DEG C. is obtained.
Odpařením matečného· louhu se může získat dalších 3,52 g (19,01%) produktu.Evaporation of the mother liquor yielded an additional 3.52 g (19.01%) of the product.
Pro C19H15NO3 vypočteno:For C19H15NO3 calculated:
58,37 % C, 8,16 % H, 7,56 % N;C 58.37, H 8.16, N 7.56;
nalezeno:found:
58,215 % C, 8,34 % H, 7,37 % N.% H, 8.34;% N, 7.37.
Tabulka 6Table 6
Příklad 9Example 9
Ze 14,32 g (0,10 molu) trans-2-'aminocyklohexankarboxylové kyseliny se získá způsobem, popsaným v příkladě 8 14,36 gramu (77,54 %) trans-2-(acetylamino)-cyklohexankarboxylové kyseliny. Produkt taje při 206 až 208 °C.From 14.32 g (0.10 mol) of trans-2-aminocyclohexanecarboxylic acid, 14.36 g (77.54%) of trans-2- (acetylamino) -cyclohexanecarboxylic acid was obtained as described in Example 8. The product melts at 206-208 ° C.
Příklad 10 mol c's popřípadě trans-2-(aceitylamino)-cyklohexankarboxylové kyseliny se suspenduje v 1800 ml bezvodého toluenu а к suspenzi se přidá 1 ml aminu. Potom se ke směsi přikape 0,33 molu chloridu fosforitého v 900 ml bezvodého toluenu. Reakční směs se vaří 2 hodiny pod zpětným tokem. Toluenový roztok se dekantuje a nechá se stát 1 den při 0 °C. Vyloučené krystaly se odfiltrují a překrystalovávají až do dosažení konstantní teploty tání z rozpouštědel uvedených v tabulce 6 a 7. Data vyrobených sloučenin jsou shrnuta v následujích tabulkách ·6 a 7.Example 10 mole of c's optionally trans-2- (aceitylamino) -cyclohexanecarboxylic acid is suspended in 1800 ml of anhydrous toluene and 1 ml of amine is added to the suspension. Then, 0.33 mol of phosphorus trichloride in 900 ml of anhydrous toluene is added dropwise to the mixture. The reaction mixture was refluxed for 2 hours. The toluene solution was decanted and allowed to stand at 0 ° C for 1 day. The precipitated crystals are filtered and recrystallized until a constant melting point is obtained from the solvents listed in Tables 6 and 7. The data of the produced compounds are summarized in the following Tables 6 and 7.
Teploty tání, výsledky analýz a výtěžky N-substituovaných cis amidů 2-(acetylamino )-cyklohexankariboxylové kyseliny amid teplota tání °C a analýza výtěžek rozpouštědlo použité vypočteno/nalezeno % к překrystalování C % H % N %Melting points, analysis results and yields of N-substituted 2- (acetylamino) -cyclohexanecariboxylic acid amides amide melting point ° C and analysis yield solvent used calculated / found% k recrystallized C% H% N%
Tabulka 7Table 7
Teploty tání, výsledky analýz a výtěžky N-substituovaných trans amidů 2-(acetylamino)-cyklohexankarboxylové kyseliny amid teplota tání °C a analýza výtěžek rozpouštědlo použité pro vypočteno/nalezeno % překrystalování C % H % N %Melting points, analysis results and yields of N-substituted 2- (acetylamino) -cyclohexanecarboxylic acid amide amide melting point ° C and analysis yield solvent used for calculated / found% recrystallization C% H% N%
-etylamid-ethylamide
-cyklohexankarbOxylové kyseliny a anilinu a od něhož se může oddělit frakční krystalizací cis-anilid vznikající jako hlavní produkt.-cyclohexanecarboxylic acid and aniline and from which cis-anilide formed as the main product can be separated by fractional crystallization.
*) Tento anilid je vedlejší produkt, který vzniká při reakci, uváděné v analogii s chinazolinovou syntézou podle GRIMMELa (J.*) This anilide is a byproduct of the reaction reported in analogy to the GRIMMEL quinazoline synthesis (J.
A. C. S. 68, 542 /1946/, cis 2-(acetylamino)21795568, 542 (1946), cis 2- (acetylamino) 217955
Příklad 11Example 11
Z cis, popřípadě trans 2-anťnocyklopentankarboxylové kyseliny se způsobem popsaným v příkladě 1 vyrobí cis, popřípadě trans 2-(benzyloxyk ar bony lamino )-cyklopentankarboxylová kyselina.From cis or trans 2-aminocyclopentanecarboxylic acid, cis or trans 2- (benzyloxycarbonylamino) -cyclopentanecarboxylic acid is prepared as described in Example 1.
Těmto odparek [ cis-2- (benzyloxykarbonylamino) -cyklopentankarboxy lo vá kyselina ] se po-užij-e bez dalšího č štění.The [cis-2- (benzyloxycarbonylamino) -cyclopentanecarboxylic acid] residue was used without further purification.
TTans-2-(benzyloxy.karbcnylamino)-cyklopentankarboxyliová kyselina se krystaluje z etanolu, výtěžek 87 %. Teplota tání: 144 až 146 °C.TTans-2- (benzyloxycarbonylamino) -cyclopentanecarboxylic acid was crystallized from ethanol, yield 87%. M.p .: 144-146 ° C.
V případě cis-2- (benzyloxykarbonylaminoi)-cyklopenitainkiar.boxylové kyseliny se produkt vyloučí při okyselení kyselinou solnou jako viskózní olej, který se extrahuje octanem etylnatým. Extrakt se usuší nad síranem sodným a potom se odpaří do sucha.In the case of cis-2- (benzyloxycarbonylamino) -cyclopenitainecarboxylic acid, the product precipitates upon acidification with hydrochloric acid as a viscous oil which is extracted with ethyl acetate. The extract is dried over sodium sulphate and then evaporated to dryness.
Příklad 12Example 12
Způsobem popsaným v příkladě 3 se vyrobí v tabulce 8 uvedené N-substituované cis -a trans amidy 2-(benzyloxykar bony lamino ] -cyklopentankarboxy lové kyseliny.The N-substituted 2- (benzyloxycarbonylamino) -cyclopentanecarboxylic acid N-substituted cis- and trans amides were prepared by the method described in Example 3.
Tabulka 8Table 8
Teploty tání, výtěžek a výsledky analýz N-substituovaných cis a trans am:dů 2-(benzyloxykarbonylamino)-cyklopentankarboxy lové kyselinyMelting points, yields and the results of analysis of N-substituted cis and trans am DU 2- (benzyloxycarbonylamino) -cyklopentankarboxy thiophenecarboxylic acid,
2- (benzyloxykarbony 1aminoj-cyklopentankarboxylové kyseliny konfigurace teplota tání °C a rozpouštědlo2- (benzyloxycarbonyl-1-amino) -cyclopentanecarboxylic acid configuration melting point ° C and solvent
Analýza vypooteno/nalezeno C % H % N % výtěžek %Analysis calculated / found C% H% N% yield%
otok)edema)
Byly zkoumány účinky brzdící záněty, analgetické účinky, účinky snižující teplotu a umocňující narkotické účinky.Inflammatory inhibitory effects, analgesic effects, temperature lowering effects and potentiating narcotic effects were investigated.
O č‘.mek byl stanoven 3 hodiny po podání zkoušené sloučeniny a 2 hodiny po podání prostředku, vyvolávajícího zánět.The assay was determined 3 hours after administration of the test compound and 2 hours after administration of the inflammatory agent.
Výsledky zkoušek na protizánětlivý účinek:Test results for anti-inflammatory effect:
sloučenina dávka % účinnosti mg/kg p. o.compound dose% efficacy mg / kg p.o.
*p < 0,05 * * *p < 0,001* p <0.05 * * * p <0.001
217Я55217Я55
PŘEDMĚT VYNALEZUOBJECT OF THE INVENTION
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS78961A CS217956B2 (en) | 1975-06-02 | 1978-02-14 | Process for the preparation of new cis or trans 2-aminocyclohexanecarboxylic or cis or trans 2-aminocyclopentanecarboxylic acids |
| CS78962A CS217957B2 (en) | 1975-06-02 | 1978-02-14 | Process for the preparation of new cis or trans 2-aminocyclohexanecarboxylic or cis or trans 2-aminocyclo-pentanecarboxylic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUCI001580 HU177576B (en) | 1975-06-02 | 1975-06-02 | Process for preparing 2-amino-cyclohexane carboxylic acid,its amides and similar compounds |
Publications (1)
| Publication Number | Publication Date |
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| CS217955B2 true CS217955B2 (en) | 1983-02-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS359176A CS217955B2 (en) | 1975-06-02 | 1976-05-28 | Method of making the new cis ev.trans 2-aminocyclohexac |
Country Status (6)
| Country | Link |
|---|---|
| AT (2) | AT350518B (en) |
| CS (1) | CS217955B2 (en) |
| DE (1) | DE2624290A1 (en) |
| FR (1) | FR2313023A1 (en) |
| HU (1) | HU177576B (en) |
| YU (2) | YU129376A (en) |
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| DE3125872A1 (en) * | 1981-07-01 | 1983-01-20 | Basf Ag, 6700 Ludwigshafen | SHIP BASES OF AMINOCYCLOALCAN CARBONIC ACID ESTERS, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE AS INTERMEDIATE PRODUCTS |
| EP0214009A3 (en) * | 1985-07-30 | 1989-01-11 | Merck & Co. Inc. | Enaminones as potential prodrugs of primary and secondary amines |
| GB8716278D0 (en) * | 1987-07-10 | 1987-08-19 | Fujisawa Pharmaceutical Co | Antimicrobial agent |
| DE4033415A1 (en) * | 1990-10-20 | 1992-04-23 | Bayer Ag | ANTIMICROBIAL AGENTS AND SUBSTITUTED 2-CYCLOHEXAN-1-YL-AMINE DERIVATIVES AND THE PRODUCTION THEREOF |
| AU673824B2 (en) * | 1992-05-29 | 1996-11-28 | Bayer Aktiengesellschaft | Cyclopentane- and -pentene-beta-amino acids |
| US6462076B2 (en) | 2000-06-14 | 2002-10-08 | Hoffmann-La Roche Inc. | Beta-amino acid nitrile derivatives as cathepsin K inhibitors |
| CN1315806C (en) | 2001-12-04 | 2007-05-16 | 霍夫曼·拉罗奇有限公司 | Substituted 2-amino-cycloalkanecarboxamides and their use as cysteine protease inhibitors |
| US6759428B2 (en) | 2001-12-04 | 2004-07-06 | Roche Palo Alto Llc | Indole nitriles |
| WO2004056744A1 (en) * | 2002-12-23 | 2004-07-08 | Janssen Pharmaceutica N.V. | Adamantyl acetamides as hydroxysteroid dehydrogenase inhibitors |
| EP1533295A1 (en) * | 2003-11-24 | 2005-05-25 | Newron Pharmaceuticals S.p.A. | Cyclopentyl Derivatives |
| EA011097B1 (en) | 2004-05-07 | 2008-12-30 | Янссен Фармацевтика Н.В. | Pyrrolidin-2-one and piperidin-2-one derivatives as 11-beta hydroxysteroid dehydrogenase inhibitors |
| MY146435A (en) | 2004-08-30 | 2012-08-15 | Janssen Pharmaceutica Nv | N-2 adamantanyl-2-phenoxy-acetamide derivatives as 11-beta hydroxysteroid dehydrogenase inhibitors |
| US8563591B2 (en) | 2004-08-30 | 2013-10-22 | Janssen Pharmaceutica N.V. | Tricyclic lactam derivatives as 11-beta hydroxysteroid dehydrogenase inhibitors |
| DE602005017159D1 (en) | 2004-08-30 | 2009-11-26 | Janssen Pharmaceutica Nv | OXYSTEROID DEHYDROGENASE INHIBITORS |
| EP2398937B1 (en) | 2009-02-17 | 2016-01-06 | McAlister Technologies, LLC | Electrolytic cell |
| EP2398938B1 (en) | 2009-02-17 | 2016-04-06 | McAlister Technologies, LLC | Apparatus and method for gas capture during electrolysis |
| US9040012B2 (en) | 2009-02-17 | 2015-05-26 | Mcalister Technologies, Llc | System and method for renewable resource production, for example, hydrogen production by microbial electrolysis, fermentation, and/or photosynthesis |
| CN102396093B (en) | 2009-02-17 | 2016-02-17 | 麦卡利斯特技术有限责任公司 | For controlling the apparatus and method of nucleation in electrolytic process |
| US8075750B2 (en) | 2009-02-17 | 2011-12-13 | Mcalister Technologies, Llc | Electrolytic cell and method of use thereof |
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| US3510492A (en) * | 1968-05-13 | 1970-05-05 | Upjohn Co | 2-anilino and 2-anilinomethyl cycloalkylamines |
| US3647804A (en) * | 1970-02-27 | 1972-03-07 | Upjohn Co | Cycloalkanecarboxamides |
| US3770825A (en) * | 1970-12-07 | 1973-11-06 | Yeda Res & Dev | 2-substituted amino cycloalkylcarboxamides |
-
1975
- 1975-06-02 HU HUCI001580 patent/HU177576B/en unknown
-
1976
- 1976-05-27 YU YU129376A patent/YU129376A/en unknown
- 1976-05-28 CS CS359176A patent/CS217955B2/en unknown
- 1976-05-31 DE DE19762624290 patent/DE2624290A1/en not_active Withdrawn
- 1976-05-31 AT AT395476A patent/AT350518B/en not_active IP Right Cessation
- 1976-06-02 FR FR7616648A patent/FR2313023A1/en active Granted
-
1977
- 1977-08-24 AT AT612777A patent/AT346826B/en not_active IP Right Cessation
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1982
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| FR2313023B1 (en) | 1978-12-15 |
| HU177576B (en) | 1981-11-28 |
| FR2313023A1 (en) | 1976-12-31 |
| ATA395476A (en) | 1978-11-15 |
| ATA612777A (en) | 1978-04-15 |
| AT346826B (en) | 1978-11-27 |
| YU94982A (en) | 1982-08-31 |
| AT350518B (en) | 1979-06-11 |
| DE2624290A1 (en) | 1977-04-14 |
| YU129376A (en) | 1982-08-31 |
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