NO172488B - PROCEDURE FOR THE PREPARATION OF 1,5-BENZOTIAZEPINE DERIVATIVES - Google Patents

PROCEDURE FOR THE PREPARATION OF 1,5-BENZOTIAZEPINE DERIVATIVES Download PDF

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NO172488B
NO172488B NO922254A NO922254A NO172488B NO 172488 B NO172488 B NO 172488B NO 922254 A NO922254 A NO 922254A NO 922254 A NO922254 A NO 922254A NO 172488 B NO172488 B NO 172488B
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hydrogen
compound
mixture
formula
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NO172488C (en
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Hirozumi Inoue
Tsunehiro Harada
Masaaki Nagasawa
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Tanabe Seiyaku Co
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Den foreliggende søknaden er avdelt fra NO patentsøknad 913422. The present application is divided from NO patent application 913422.

Den foreliggende oppfinnelsen angår en framgangsmåte for framstilling av 1,5-benzontiazepinderivater angitt ved formelen: The present invention relates to a process for the production of 1,5-benzothiazepine derivatives indicated by the formula:

hvor R<1> er en lavere alkoksygruppe, R<2> er hydrogen eller en lavere alkanoylgruppe, en av R<3 >og R<*> er et halogenatom, og den andre er hydrogen, og hver av R<5> og R<6> er en lavere alkylgruppe. ;1,5-benzotiazepinderivatet (I) og et farmasøytisk akseptabelt salt derav fremstilt ved tilsats av syre er egnede farmasøytiske forbindelser med en utmerket hypotensiv aktivitet, cerebral eller koronar vasodilaterende aktivitet og/eller blodplate sammenhopningsinhiberende aktivitet er kjent fra norske utlegningsskrifter 162518 og 163488, og blant forbindelsene (I), er en forbindelse hvor R<2> er hydrogenatom også egnet som et mellomprodukt for framstilling av farmasøytiske midler. ;Beskrivelse av de foretrukne utførelsesformene ;Eksempler på forbindelsen (I) under den foreliggende oppfinnelsen kan omfatte forbindelse hvori R<1> er en lavere alkoksygruppe, R2 er hydrogen eller en lavere alkanoylgruppe, en av R<3> eller R<4 >er et halogenatom, og den andre er hydrogenatom, og hver av R5 og R<6> er en lavere alkylgruppe. ;I de ovenfor nevnte eksempler på 1,5-benzotiazepinderivatet (I), inkluderer den lavere alkylgruppen, den lavere alkoksygruppen og den lavere alkanoylgruppen en alkylgruppe med fra 1 til 6 karbonatomer, en alkoksygruppe med fra 1 til 6 karbonatomer og en alkanoylgruppe med fra 2 til 6 karbonatomer, respektive. Foretrukne eksempler på disse gruppene er en alkylgruppe med fra 1 til 4 karbonatomer, en alkoksygruppe med fra 1 til 4 karbonatomer og en alkanoylgruppe med fra 2 til 5 karbonatomer. ;I følge den foreliggende oppfinnelsen kan forbindelsen (I) fremstilles ved å la en forbindelse angitt med formelen: hvor R<1>, R<2>, R<3> og R<*> har samme betydning som definert ovenfor, reagere med en aminetanol angitt med formelen: where R<1> is a lower alkoxy group, R<2> is hydrogen or a lower alkanoyl group, one of R<3 >and R<*> is a halogen atom, and the other is hydrogen, and each of R<5> and R<6> is a lower alkyl group. ; the 1,5-benzothiazepine derivative (I) and a pharmaceutically acceptable salt thereof prepared by the addition of acid are suitable pharmaceutical compounds with an excellent hypotensive activity, cerebral or coronary vasodilatory activity and/or platelet aggregation inhibitory activity are known from Norwegian explanatory documents 162518 and 163488, and among the compounds (I), a compound in which R<2> is a hydrogen atom is also suitable as an intermediate for the production of pharmaceuticals. ;Description of the preferred embodiments ;Examples of the compound (I) under the present invention may include compound in which R<1> is a lower alkoxy group, R2 is hydrogen or a lower alkanoyl group, one of R<3> or R<4> a halogen atom, and the other is a hydrogen atom, and each of R5 and R<6> is a lower alkyl group. ;In the above-mentioned examples of the 1,5-benzothiazepine derivative (I), the lower alkyl group, the lower alkoxy group and the lower alkanoyl group include an alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms and an alkanoyl group having from 2 to 6 carbon atoms, respectively. Preferred examples of these groups are an alkyl group with from 1 to 4 carbon atoms, an alkoxy group with from 1 to 4 carbon atoms and an alkanoyl group with from 2 to 5 carbon atoms. According to the present invention, the compound (I) can be prepared by allowing a compound represented by the formula: where R<1>, R<2>, R<3> and R<*> have the same meaning as defined above, to react with an amine ethanol given by the formula:

hvor R<5> og R<6> har samme betydning som angitt ovenfor, og Z er hydrogen, en lavere alkylsulfonylgruppe, en arylsulfonylgruppe eller sulfogruppe, ved en kondensasjonsreaksjon. where R<5> and R<6> have the same meaning as stated above, and Z is hydrogen, a lower alkylsulfonyl group, an arylsulfonyl group or sulfo group, by a condensation reaction.

Kondensasjonsreaksjonen ovenfor, når utgangsforbindelsen (TH) hvor Z er hydrogen benyttes, kan utføres i nærvær av et dehydreringsmiddel. Som dehydreringsmiddel kan det f.eks. brukes en blanding av trifenylfosfin og dietylazodikarboksylat, en blanding a trifenylfosfm og dimetylazodikarboksylat, en blanding av sulfuryldiimidazol og natriumhydrid. Denne kondensasjonsreksjonen kan fortrinnsvis utføres i et egnet løsningsmiddel, (f.eks., kloroform, dikloroetan, diklorometan, aceton, dietylketon, metyletylketon, etylacetat, metylacetat, etylpropionat, metylpropionat, dimetylformamid, dietylformat, dimetylacetamid, N-formylmorfolin, N-acetylmorfolin, dioxan, tetrahydrofuran, eter, dimetoksyetan, diglym, toluen, benzen, xylen, etc.) ved 0 til 150°C. The above condensation reaction, when the starting compound (TH) where Z is hydrogen is used, can be carried out in the presence of a dehydrating agent. As a dehydrating agent, it can e.g. a mixture of triphenylphosphine and diethylazodicarboxylate, a mixture of triphenylphosphine and dimethylazodicarboxylate, a mixture of sulphuryldiimidazole and sodium hydride are used. This condensation reaction can preferably be carried out in a suitable solvent, (eg, chloroform, dichloroethane, dichloromethane, acetone, diethyl ketone, methyl ethyl ketone, ethyl acetate, methyl acetate, ethyl propionate, methyl propionate, dimethylformamide, diethyl formate, dimethylacetamide, N-formylmorpholine, N-acetylmorpholine, dioxane, tetrahydrofuran, ether, dimethoxyethane, diglyme, toluene, benzene, xylene, etc.) at 0 to 150°C.

På den andre side, når forbindelsen (III) hvor Z er en lavere alkylsulfonylgruppe (f.eks. metylsulfonylgruppe, etylsulfonylgruppe) en arylsulfonylgruppe, (f.eks. benzensulfonylgruppe, tosylgruppe) eller sulfogruppe, kan kondensasjonsreaksjonen for nevnte forbindelse og forbindelsen (2) fortrinnsvis utføres i nærvær av et alkalisk reagens. Eksempler på det alkaliske reagens kan omfatte alkalimetallhydroksider (f.eks. kaliumhydroksid, etc), alkalimetall karbonater (f.eks. kaliumkarbonat, etc), alkalimetall hydrogenkarbonater (f.eks. kaliumhydrogenkarbonat, etc), alkalimetall hydrider (f.eks. natriumhydrid, etc). Denne kondensasjonsreaksjonen bør fortrinnsvis utføres i et egnet løsningsmiddel (f.eks. metyletylketon, dietylketon, aceton, dimetylsulfoksid, dimetylformamid, etylacetat, metylpropionat, etylpropionat, tetrahydrofuran, dioxan, eter, dimetoksyetan, diglym, toluen, benzen, xylen, acetonitril, dimetylacetamid, dietylformamid, N-formylmorfolin, N-acetylmorfolin, etc.) ved 0 til 150°C. On the other hand, when the compound (III) where Z is a lower alkylsulfonyl group (e.g., methylsulfonyl group, ethylsulfonyl group), an arylsulfonyl group, (e.g., benzenesulfonyl group, tosyl group) or sulfo group, the condensation reaction of said compound and the compound (2) preferably carried out in the presence of an alkaline reagent. Examples of the alkaline reagent may include alkali metal hydroxides (e.g. potassium hydroxide, etc), alkali metal carbonates (e.g. potassium carbonate, etc), alkali metal hydrogen carbonates (e.g. potassium hydrogen carbonate, etc), alkali metal hydrides (e.g. sodium hydride , etc). This condensation reaction should preferably be carried out in a suitable solvent (e.g. methyl ethyl ketone, diethyl ketone, acetone, dimethyl sulfoxide, dimethyl formamide, ethyl acetate, methyl propionate, ethyl propionate, tetrahydrofuran, dioxane, ether, dimethoxyethane, diglyme, toluene, benzene, xylene, acetonitrile, dimethyl acetamide, diethylformamide, N-formylmorpholine, N-acetylmorpholine, etc.) at 0 to 150°C.

Da reaksjonen under den foreliggende oppfinnelsen som nevnt ovenfor går uten medfølgende racemisering, kan forbindelsen (I) fremstilles som en optisk aktiv forbindelse ved bruk av en optisk aktiv forbindelse (II) som utgangsmateriale. Også, blant forbindelsene (I), er forbindelsen hvor R2 er hydrogen også nyttig som et syntetisk mellomprodukt, siden denne forbindelsen kan konverteres ved acylering til en forbindelse (I) hvor R<2> er en lavere alkanoylgruppe. Since the reaction under the present invention as mentioned above proceeds without accompanying racemization, the compound (I) can be prepared as an optically active compound using an optically active compound (II) as starting material. Also, among the compounds (I), the compound wherein R 2 is hydrogen is also useful as a synthetic intermediate, since this compound can be converted by acylation to a compound (I) wherein R< 2 > is a lower alkanoyl group.

Utgangsforbindelsen (II) for bruk under den foreliggende oppfinnelsen kan framstilles ifølge framgangsmåtene beskrevet i japansk patentskrift nr. 225174/1984, (som tilsvarer U.S. Patentskrift nr. 4 567 175). The starting compound (II) for use in the present invention can be prepared according to the methods described in Japanese Patent No. 225174/1984, (corresponding to U.S. Patent No. 4,567,175).

Forbindelsen (I) og forbindelsen (II) omfatter også enten to slag stereoisomerer (det vil si, cis og trans-siomerer) eller 4 slag optiske isomerer (det vil si, (+) -cis, (-)-cis, (+)-trans og (-)-trans isomerer) og blandinger derav basert på asymetriske karbonatomer (2) i molekylet. The compound (I) and the compound (II) also include either two kinds of stereoisomers (that is, cis and trans isomers) or 4 kinds of optical isomers (that is, (+)-cis, (-)-cis, (+ )-trans and (-)-trans isomers) and mixtures thereof based on asymmetric carbon atoms (2) in the molecule.

Eksempel 1: Example 1:

Til 80 ml diklorometanoppløsning av 3 g av (+)-cis-2-(4- metoksyfenyl)-3-acetoksy-8-cloro-2,3-dihydro-l,5-benzotiazepin- 4(5H)-on og 2,3 g trifenylfosfin ble det tilsatt 15 ml diklorometanoppløsning av 779 mg 2- (dimetylamino)etanol i løpet av 20 minutter, deretter 15 ml diklorometanoppløsning av 1,52 g dietylazodikarboksylat ved romtemperatur i løpet av 20 minutter. Blandingen ble omrørt i 20 timer ved romtemperatur, etterfulgt av inndampning under redusert trykk. Residuet ble oppløst i etylacetat og uoppløselige stoffer ble fjernet ved filterering. Filtratet ble ekstrahert med en 10% saltsyre, og den vanndige fasen ble gjort alkalisk ved hjelp av kaliumkarbonat og ekstrahert med kloroform. Ekstraktet ble vasket med vann, tørket og fordampet under redusert trykk. Residuet ble konvertert til maleat og rekrystallisering fra etanol gav 3,55 g (+)-cis-2(4-metoksyfenyl)-3-acetoksy-5-[2-(dimetylamino)etyl]-8-cloro-2,3-dihydro-l,5-benzotiazepin-4(5H)-on.maleat.Utbytte: 79.2 %. To 80 ml dichloromethane solution of 3 g of (+)-cis-2-(4-methoxyphenyl)-3-acetoxy-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one and 2 .3 g of triphenylphosphine, 15 ml of a dichloromethane solution of 779 mg of 2-(dimethylamino)ethanol was added over the course of 20 minutes, then 15 ml of a dichloromethane solution of 1.52 g of diethyl azodicarboxylate at room temperature over the course of 20 minutes. The mixture was stirred for 20 hours at room temperature, followed by evaporation under reduced pressure. The residue was dissolved in ethyl acetate and insoluble substances were removed by filtration. The filtrate was extracted with a 10% hydrochloric acid, and the aqueous phase was made alkaline with potassium carbonate and extracted with chloroform. The extract was washed with water, dried and evaporated under reduced pressure. The residue was converted to maleate and recrystallization from ethanol gave 3.55 g of (+)-cis-2(4-methoxyphenyl)-3-acetoxy-5-[2-(dimethylamino)ethyl]-8-chloro-2,3- dihydro-1,5-benzothiazepin-4(5H)-one maleate. Yield: 79.2%.

Smeltepunkt 158 til 160 °C. Melting point 158 to 160 °C.

Eksempel 2: Example 2:

Etter omrøring av en blanding av 354 mg 2-(dimetylamino)- etanol og 159 mg av 60% natriumhydrid i 14 ml dimetylformamid ved romtemperatur i 20 minutter, ble det tilsatt 787 mg sulfuryldiimidazol ved -40 °C til bladningen og blandingen ble omrørt ved samme temperaturen i en time. Deretter ble det tilsatt 5 ml dimetylsulfoksid-oppløsning av en 1.0 g av (+)-cis-2-(4-metoksyfenyl)-3-acetoksy-8-kloro-2,3-dihydro-l ,5-benzotiazepin^(5H)-on ved - 40°C og etter gradvis oppvarming, ble reaksjonsblandingen omrørt ved romtemperatur i 20 timer. Etter at reaksjonen hadde gått til endes ble det tilsatt metanol og kloroform. Blandingen ble vasket med vann og tørket, etterfulgt av fjerning av løsningsmiddelet, og residuet ble separert i en kromatografisk kolonne. Etter fjerning av utgangslaktamet ved elusjon med kloroform-etanol (20:1), ble det deretter eluerte oljeaktige produktet konvertert til mal eat og rekrystallisert fra etanol for å gi 777 mg (+)-cis-2-(4-metoksyfenyl)-3-acetoksy-5-[2-dimetylamino)-etyl]-8-klor-2,3-dihydro-l,5-benzotiazepin-4(5H)-on.maleat. After stirring a mixture of 354 mg of 2-(dimethylamino)-ethanol and 159 mg of 60% sodium hydride in 14 ml of dimethylformamide at room temperature for 20 minutes, 787 mg of sulfuryldiimidazole was added at -40 °C until the leafing and the mixture was stirred at same temperature for one hour. Then 5 ml of dimethylsulfoxide solution of a 1.0 g of (+)-cis-2-(4-methoxyphenyl)-3-acetoxy-8-chloro-2,3-dihydro-1,5-benzothiazepine (5H )-on at -40°C and after gradual heating, the reaction mixture was stirred at room temperature for 20 hours. After the reaction had gone to completion, methanol and chloroform were added. The mixture was washed with water and dried, followed by removal of the solvent, and the residue was separated on a chromatographic column. After removal of the starting lactam by elution with chloroform-ethanol (20:1), the subsequently eluted oily product was converted to malt and recrystallized from ethanol to give 777 mg of (+)-cis-2-(4-methoxyphenyl)-3 -acetoxy-5-[2-dimethylamino)ethyl]-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one maleate.

Smeltepunkt 158 til 160 °C. Melting point 158 to 160 °C.

Eksempel 3: Example 3:

Til 30 ml acetonoppløsning av 1,86 g (+)-cis-2-(4-metoksyfenyl)-3-acetoksy-8-kloro-2,3-dihydro-l,5-benzotiazepin-4(5H)-on ble det tilsatt 2.4 g pulverformet kaliumkarbonat og 1,1 g av 2-(metylamino)etyl metan-sulfonat.hydroklorid, og blandingen ble kokt med tilbakeløp under omrøring i 10 timer. Etter at reaksjonen hadde gått til endes, ble uorganiske materialer fjernet ved filtrering, til residuet ble det tilsatt 10% saltsyre og etylacetat, og ekstrahert med 10% saltsyre. Ekstraktet ble vasket med vann, tørket og inndampet under redusert trykk. Residuet ble konvertert til hydroklorid og rekrystallisert fra en blanding av aceton-etanol for å gi 2,10 g (+)-cis-2-(4-metoksyfenyl)-3-acetoksy-5-[2Klimetylamino)etyl]-8-klor-2,3-dmydro-l,5-berizotiazepin-4(5H)-on.hydroklorid. To 30 ml acetone solution of 1.86 g (+)-cis-2-(4-methoxyphenyl)-3-acetoxy-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one was 2.4 g of powdered potassium carbonate and 1.1 g of 2-(methylamino)ethyl methanesulfonate hydrochloride were added, and the mixture was refluxed with stirring for 10 hours. After the reaction had gone to completion, inorganic materials were removed by filtration, 10% hydrochloric acid and ethyl acetate were added to the residue, and extracted with 10% hydrochloric acid. The extract was washed with water, dried and evaporated under reduced pressure. The residue was converted to the hydrochloride and recrystallized from an acetone-ethanol mixture to give 2.10 g of (+)-cis-2-(4-methoxyphenyl)-3-acetoxy-5-[2Clmethylamino)ethyl]-8-chloro -2,3-dihydro-1,5-berisothiazepin-4(5H)-one hydrochloride.

Utbytte: 86,5%. Yield: 86.5%.

Smeltepunkt 127 til 131 °C (dekomponerte). Melting point 127 to 131 °C (decomposed).

Eksempel 4: Example 4:

Til 50 ml dimetylsulfoksid oppløsning av 3.36 g av (+)-cis-2-(4-metoksyfenyl)-3-hydroksy-8-kloro-2,3-dihydro-l,5-benzotiazepin-4(5H)-on ble det tilsatt 1,35 g kaliumhydroksid under iskjøling og, etter omrøring ved romtemeratur, ble det tilsatt 244 mg 2-(dimetyIamino)etyl metansulfonat hydroklorid, etterfulgt av omrøring ved romtemperatur i 16 timer. Etter at reaksjonen hadde gått til endes, ble blandingen helt over i isvann og blandingen ble ekstrahert med en 1:1 blanding av kloroform og etanol. Ekstraktet ble vasket med vann, tørket og fordampet under redusert trykk. Rekrystallisering av 3,48 g av residuet fra en løsningsmiddelblanding av etylacetat og heksan ga 3,06 g (+)-cis-2-(4-metoksyfenyl)-3-hydroksy-5-[2-(dimetylamino)etyl]-8-klor-2,3-dihydro-l,5- To 50 ml of dimethyl sulfoxide solution of 3.36 g of (+)-cis-2-(4-methoxyphenyl)-3-hydroxy-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one was to it was added 1.35 g of potassium hydroxide under ice-cooling and, after stirring at room temperature, 244 mg of 2-(dimethylamino)ethyl methanesulfonate hydrochloride was added, followed by stirring at room temperature for 16 hours. After the reaction had gone to completion, the mixture was poured into ice water and the mixture was extracted with a 1:1 mixture of chloroform and ethanol. The extract was washed with water, dried and evaporated under reduced pressure. Recrystallization of 3.48 g of the residue from a solvent mixture of ethyl acetate and hexane gave 3.06 g of (+)-cis-2-(4-methoxyphenyl)-3-hydroxy-5-[2-(dimethylamino)ethyl]-8 -chloro-2,3-dihydro-1,5-

benzotiazepin-4(5H)-on. benzothiazepin-4(5H)-one.

Utbytte: 75,2 % Yield: 75.2%

Smeltepunkt: 122 til 124 °C. Melting point: 122 to 124 °C.

Eksempel 5: Example 5:

Til 30 ml aceton-0.5 ml vann oppløsning av 1,68 g (+)-cis-2-(4-metoksyfenyl)-3-hydroksy-8-kloro-2,3-dihydro-l,5-benzotiazepin-4(5H)-on ble det tilsatt 2,40 g kaliumkarbonat og 1.09 g av 2-(dimetylamino)etyl metansulfonat.hydroklorid, etterfulgt av koking med tilbakeløp i 20 timer. Etter at reaksjonen hadde gått til endes, ble uorganiske materialer fjernet ved filtrering, til residuet ble det tilsatt 10% saltsyre og etylacetat og den organiske fasen ble ekstrahert med 10 % saltsyre. Saltsyrefasene ble slått sammen og gjort alkalisk med kaliumkarbonat og så ekstrahert med etylacetat. Ekstraktet ble vasket med vann, tørket, og fordampet under redusert trykk. Rekrystallisering av residuet fra en blanding av etylacetat-n- hexan ga 1.40 g (+)-cis-2-(4-metoksyfenyl)-3-hydroksy-5-[2-dimetylamino)etyl]-8-klor-2,3-dihydro-l ,5-benzotiazepin-4(5H)-on. To 30 ml acetone-0.5 ml water solution of 1.68 g (+)-cis-2-(4-methoxyphenyl)-3-hydroxy-8-chloro-2,3-dihydro-1,5-benzothiazepine-4( 5H)-one, 2.40 g of potassium carbonate and 1.09 g of 2-(dimethylamino)ethyl methanesulfonate hydrochloride were added, followed by refluxing for 20 hours. After the reaction had gone to completion, inorganic materials were removed by filtration, 10% hydrochloric acid and ethyl acetate were added to the residue and the organic phase was extracted with 10% hydrochloric acid. The hydrochloric acid phases were combined and made alkaline with potassium carbonate and then extracted with ethyl acetate. The extract was washed with water, dried, and evaporated under reduced pressure. Recrystallization of the residue from a mixture of ethyl acetate-n-hexane gave 1.40 g (+)-cis-2-(4-methoxyphenyl)-3-hydroxy-5-[2-dimethylamino)ethyl]-8-chloro-2,3 -dihydro-1,5-benzothiazepin-4(5H)-one.

Utbytte: 68.8 %. Yield: 68.8%.

Smeltepunkt: 123 til 125 °C. Melting point: 123 to 125 °C.

Eksempel 6: Example 6:

I eksempel 3, ved bruk av 2-(dimetylamino)etylbenzen-sulfonat.hydroklorid i stedet for 2-(dimetylamino)etyl metansulfonat-hydroklorid, ble det dannet (+)-cis-2-(4-metoksyfenyl)-3-acetoksy-5-[2-(dimetylamino)etyl]-8-klor-2,3-dihydro-l,5-benzotiazepin-4(5H)-on.hydroklorid. In Example 3, using 2-(dimethylamino)ethylbenzenesulfonate hydrochloride instead of 2-(dimethylamino)ethyl methanesulfonate hydrochloride, (+)-cis-2-(4-methoxyphenyl)-3-acetoxy was formed -5-[2-(dimethylamino)ethyl]-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one hydrochloride.

Dette produktet hadde de samme fysikalske data som produktet i eksempel 3. This product had the same physical data as the product in example 3.

Eksempel 7: Example 7:

I eksempel 3, ved bruk av 2-(dimetylamino)etyl toluensulfonat.hydroklorid i stedet for 2-(dimetylamino)etylmetamulfonat-hydroklorid,bledetdarmet(+)-cis-2-(4-metoksyfenyl)-3-acetoksy-5-[2-(dimetylamino)etyl]-8-klor-2,3-dihydro-l,5-benzotiazepin-4(5H)-on.hydroklorid. In Example 3, using 2-(dimethylamino)ethyl toluenesulfonate hydrochloride instead of 2-(dimethylamino)ethyl metasulfonate hydrochloride, the resulting (+)-cis-2-(4-methoxyphenyl)-3-acetoxy-5-[ 2-(Dimethylamino)ethyl]-8-chloro-2,3-dihydro-1,5-benzothiazepin-4(5H)-one hydrochloride.

Dette produktet hadde de samme fysikalske data som produktet i eksempel 3. This product had the same physical data as the product in Example 3.

Eksempel 8: Example 8:

I eksempel 3, ved bruk av 2-(dimetylamino)etyl sulfat i stedet for 2-(dimetylamino)etyl metansulfonat.hydroklorid, ble det dannet (+)-cis-2-(4-metoksyfenyl)-3-acetoksy-5-[2-(dimetylamino)etyl]-8-Mor-2,3-dmydro-l,5-benzotiazepin-4(5H^ In Example 3, using 2-(dimethylamino)ethyl sulfate instead of 2-(dimethylamino)ethyl methanesulfonate hydrochloride, (+)-cis-2-(4-methoxyphenyl)-3-acetoxy-5- [2-(Dimethylamino)ethyl]-8-Mor-2,3-dihydro-1,5-benzothiazepine-4(5H

Dette produktet hadde de samme fysikalske data som produktet i eksempel 3. This product had the same physical data as the product in example 3.

Eksemplene 9 og 10 Examples 9 and 10

Ved å behandle tilsvrende utgangsmateriale på samme måte som i eksemplene 1 til 5, kan følgende forbindelser fremstilles. (9) (+)-cis-2-(4-metoksyfenyl)-3-hydroksy-5-[2-(dimetylamino)etyl]-9-klor-2,3-dihydro-l,5-benzotiazepin-4(5H)-on.perklorat. 1/4 hydrat. By treating the corresponding starting material in the same way as in Examples 1 to 5, the following compounds can be prepared. (9) (+)-cis-2-(4-methoxyphenyl)-3-hydroxy-5-[2-(dimethylamino)ethyl]-9-chloro-2,3-dihydro-1,5-benzothiazepine-4( 5H)-one.perchlorate. 1/4 hydrate.

Smeltepunkt 190 til 192°C. Melting point 190 to 192°C.

(10) (+)-cis-2-(4-metoksyfenyl-3-acetoksy-5-[2-(dimetylamino)etyl]-9-klor-2,3-dihydro-l,5-benzotiazepin-4(5H)-on.hydroklorid.monohydrat. (10) (+)-cis-2-(4-methoxyphenyl-3-acetoxy-5-[2-(dimethylamino)ethyl]-9-chloro-2,3-dihydro-1,5-benzothiazepine-4(5H )-on.hydrochloride.monohydrate.

Smeltepunkt 140 til 143°C. Melting point 140 to 143°C.

Claims (6)

1. Framgangsmåte for framstilling av 1,5-benzotiazepinderivater angitt med formelen: hvor R<1> er en lavere alkoksygruppe, R<2> er hydrogen eller en lavere alkanoylgruppe, en av R<3 >og R<4> er et halogenatom, og den andre er hydrogen, og hver av Rs og R<6> er en lavere alkylgruppe, karakterisert ved at den omfatter å la en forbindelse angitt med formelen: hvor R<1>, R<2>, R<3> og R<4> har samme betydning som angitt ovenfor, reagere med et aminoetanol angitt med formelen: hvor R<5> og R<*> har samme betydning som angitt ovenfor, og Z er hydrogen, en lavere alkylsulfonylgruppe, en arylsulfonylgruppe eller sulfogruppe,ved en kondensasjonsreaksjon.1. Procedure for the production of 1,5-benzothiazepine derivatives indicated by the formula: where R<1> is a lower alkoxy group, R<2> is hydrogen or a lower alkanoyl group, one of R<3 >and R<4> is a halogen atom, and the other is hydrogen, and each of Rs and R<6 > is a lower alkyl group, characterized in that it comprises leaving a compound indicated by the formula: where R<1>, R<2>, R<3> and R<4> have the same meaning as indicated above, react with an aminoethanol indicated by the formula: where R<5> and R<*> have the same meaning as stated above, and Z is hydrogen, a lower alkylsulfonyl group, an arylsulfonyl group or sulfo group, by a condensation reaction. 2. Framgangsmåte ifølge krav 1, karakterisert ved at kondensasjonsreaksjonen utføreres i et løsningsmiddel ved en temperatur mellom 0°C og 150°C.2. Method according to claim 1, characterized in that the condensation reaction is carried out in a solvent at a temperature between 0°C and 150°C. 3. Framgangsmåte ifølge krav 2, karakterisert ved at kondensasjonsreaksjonen utføres i nærvær av et dehydreringsmiddel når Z i forbindelsen i formelen ( TH) er hydrogen.3. Procedure according to claim 2, characterized in that the condensation reaction is carried out in the presence of a dehydrating agent when Z in the compound in the formula (TH) is hydrogen. 4. Framgangsmåte ifølge krav 3, karakterisert ved at dehydreringsmiddelet er en blanding av trifenylfosfin og dietylazodikarboksylat, en blanding av trifenylfosfin og dimetylazodikarboksylat, eller en blanding av sulfuryldiimidazol og natrium hydrid.4. Procedure according to claim 3, characterized in that the dehydrating agent is a mixture of triphenylphosphine and diethylazodicarboxylate, a mixture of triphenylphosphine and dimethylazodicarboxylate, or a mixture of sulphuryldiimidazole and sodium hydride. 5. Framgangsmåte i følge krav 2, karakterisert ved at kondensasjonsreaksjonen utføres i nærvær av et alkalisk reagens når Z i forbindelsen i formelen (III) er en lavere alkylsulfonylgruppe, en arylsulfonylgruppe eller en sulfogruppe.5. Procedure according to claim 2, characterized in that the condensation reaction is carried out in the presence of an alkaline reagent when Z in the compound of formula (III) is a lower alkylsulfonyl group, an arylsulfonyl group or a sulfo group. 6. Framgangsmåte ifølge krav 5, karakterisert ved at det alkaliske reagens er et alkalimetallhydroksid, et alkalimetallkarbonat, et alkalimetall hydrogenkarbonat eller et alkalimetallhydrid.6. Procedure according to claim 5, characterized in that the alkaline reagent is an alkali metal hydroxide, an alkali metal carbonate, an alkali metal hydrogen carbonate or an alkali metal hydride.
NO922254A 1987-08-21 1992-06-09 PROCEDURE FOR THE PREPARATION OF 1,5-BENZOTIAZEPINE DERIVATIVES NO172488C (en)

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JP62208482A JPS6450872A (en) 1987-08-21 1987-08-21 Production of 1,5-benzothiazepine derivative
NO883526A NO170541C (en) 1987-08-21 1988-08-09 ANALOGY PROCEDURE FOR THE PREPARATION OF THERAPEUTIC ACTIVE 1,5-BENZOTIAZEPINE DERIVATIVES
NO922254A NO172488C (en) 1987-08-21 1992-06-09 PROCEDURE FOR THE PREPARATION OF 1,5-BENZOTIAZEPINE DERIVATIVES

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NO172488C NO172488C (en) 1993-07-28

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