PL148241B1 - Method of obtaining novel 5-/4-chlorophenyl/-3-methyl-6-trichloromethylisoxazolo-5,4-d-6,7-dihydro-7h-pyrimidin-4-one - Google Patents

Method of obtaining novel 5-/4-chlorophenyl/-3-methyl-6-trichloromethylisoxazolo-5,4-d-6,7-dihydro-7h-pyrimidin-4-one Download PDF

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PL148241B1
PL148241B1 PL26438487A PL26438487A PL148241B1 PL 148241 B1 PL148241 B1 PL 148241B1 PL 26438487 A PL26438487 A PL 26438487A PL 26438487 A PL26438487 A PL 26438487A PL 148241 B1 PL148241 B1 PL 148241B1
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methyl
chlorophenyl
pyrimidin
dihydro
trichloromethylisoxazolo
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PL26438487A
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Polish (pl)
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PL264384A1 (en
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Description

Przedmiotem wynalazku jest sposób wytwarzania nowego 5-/4-chlorofenylo/-3-metylo- -6-trichlorometyloizoksazolo- /5,4- rze 1, stanowiacego pólprodukt do wytwarzania pochodnych wykazujacych wysoka aktywnosc przeciwdrgawkowa i przeciwbólowa.Wedlug wynalazku sposób wytwarzania nowego 5-/4-chlorofenyl^/-3-netylo-6-trichloro- metyloizoksazolo - ^5,4 - 4/ - 6,7 - dihydro - £l)tf - pirymidyn - 4-onu o wzorze 1 pole¬ ga na tym, ze podstawiony 4-fenyloamid kwasu 5-amino-3-metylc-4-izoksazolokarboksylowego cyklizuje sie za pomoca aldehydu trichlorooctowego* Wytworzony zwiazek poddany nastepnie acetalowaniu za pomoca metanolu prowadzi do powstania 5- /4-chlorofenylo/- 4-hydroksy - 4-metoksy - 3-metyloizoksazolo - /5,4 -d/ - 6,7-dihydro - fnj? - pirymidyny o wzorze 2, która poddana aminolizie hydroksyetyloamina, hydroksyetyloaminoetyloamina, dietyloaminoetyloamina, alliloamina, mcrfolina, hydroksy- etylopiperazyna lub benzyloamina prowadzi do wytworzenia nowych pochodnych 5-fenylo- 3-metyloizoksazolo -/54 - d7 - 6,7 - dihydro - /7ll/ - pirymidyn o wzorze ogólnym 3, w którym H oznacza grupe aminowa odpowiednia do wymienionych wyzej amin* Zwiazki o wzorze ogólnym 3 wykazuja aktywnosc przeciwdrgawkowa i przeciwbólowa. Aktyw¬ nosc przeciwdrgawkowa badano w tescie maksymalnego szoku elektrycznego i w tescie zno¬ szenia drgawek wywolanych pentetrazolem, osiagajac calkowite zniesienie objawów. Dziala¬ nie przeciwbólowe oceniono w tescie czolgania, który wykazal zmniejszenie reakcji na ból do okolo 60 %.Przedmiot wynalazku Jest przedstawiony w przykladzie wykonania.Przyklad. 12,6 g /0,05 mola/ p-chlorofenyloamidu kwasu 5-amino-3-oetylo-4-izoksazolokar- boksylowego ogrzewa sie przez 2 godziny na lesni wodnej z 11 g /0,075 mola/ aldehydu tri-2 148 241 chlorooctowego w 30 g benzenu* Po ochlodzeniu odsacza sie wydzielony osad. Otrzymuje sie 12 g produktu, z wydajnoscia równa 78 % wydajnosci teoretycznej, którego temperatura top¬ nienia wynosi 423-424 K.Zastrzezenie patentowe Sposób wytwarzania nowego 5-/4-chlorofenylo/-3-metylo-6-trichlorometyloizoksazolo- - /5,4-d/ - 6,7 - dlhydro - flYjf - pirymidyn -4-onu o wzorze 1, znamienny tym, te podstawiony 4-fenyloamid kwasu 5-amino-3-netylo-4-izoksazolokarboksylowego cyklizuje sie za pomoca aldehydu trichlorooctowego.Wzbr 1 Wzbr 3 Pracownia Poligraficzna UP PRL. Naklad 100 egz.Cena 400 zl PLThe subject of the invention is a process for the preparation of the new 5- (4-chlorophenyl) -3-methyl-6-trichloromethylisoxazole- (5,4-rhe 1), which is an intermediate for the production of derivatives showing high anticonvulsant and analgesic activity. (4-chlorophenyl) - 3-nethyl-6-trichloromethylisoxazole - (5,4 - 4) - 6,7 - dihydro - l) tf - pyrimidine - 4-one of the formula (I) consists of: that the substituted 5-amino-3-methylc-4-isoxazole carboxylic acid 4-phenylamide is cyclized with trichloroacetic aldehyde * The resulting compound, then acetalised with methanol, leads to the formation of 5- (4-chlorophenyl) - 4-hydroxy-4-methoxy - 3-methylisoxazole - (5,4-d) - 6,7-dihydro-fnj - pyrimidines of formula 2, which, when subjected to aminolysis, hydroxyethylamine, hydroxyethylaminoethylamine, diethylaminoethylamine, allylamine, mcrfoline, hydroxyethylpiperazine or benzylamine leads to the production of new 5-phenyl-3-methylisoxazole derivatives - / 54 - d7 - 6.7 - dihydro - pyrimidines of general formula III, in which H is an amino group suitable for the amines mentioned above. Compounds of general formula III have anticonvulsant and analgesic activity. The anticonvulsant activity was tested in the maximum electric shock test and in the pentetrazole-induced epilepsy relief test, achieving complete symptom relief. The analgesic effect was assessed in a traverse test, which showed a reduction in pain response to about 60%. The subject of the invention is illustrated in the example of the embodiment. 12.6 g (0.05 mole) of 5-amino-3-oethyl-4-isoxazole-carboxylic acid p-chlorophenylamide is heated for 2 hours in a water forest with 11 g (0.075 mole) of tri-2 148 241 chloroacetic aldehyde in 30 g of benzene * After cooling, the separated precipitate is filtered off. 12 g of the product are obtained with a yield equal to 78% of theoretical yield, the melting point of which is 423-424 K. Patent claim Process for the production of a new 5- (4-chlorophenyl) -3-methyl-6-trichloromethylisoxazole-5, 4-d / - 6,7-dlhydro-flYjf-pyrimidin-4-one of formula 1, characterized in that the substituted 5-amino-3-netyl-4-isoxazole carboxylic acid 4-phenylamide is cyclized with trichloroacetic aldehyde. 1 Wzbr 3 Printing House of the Polish People's Republic. Mintage 100 copies Price PLN 400 PL

Claims (5)

1. Zastrzezenie patentowe1. Patent claim 2. Sposób wytwarzania nowego 5-/4-chlorofenylo/-2. The method of producing new 5- (4-chlorophenyl) - 3. -metylo-6-trichlorometyloizoksazolo- - /5,4-d/ - 6,7 - dlhydro - flYjf - pirymidyn -4-onu o wzorze 1, znamienny tym, te podstawiony3.-methyl-6-trichloromethylisoxazole - (5,4-d) - 6,7 - dlhydro - flYjf - pyrimidin -4-one of the formula I, characterized by those substituted 4. -fenyloamid kwasu4.-acid phenylamide 5. -amino-3-netylo-4-izoksazolokarboksylowego cyklizuje sie za pomoca aldehydu trichlorooctowego. Wzbr 1 Wzbr 3 Pracownia Poligraficzna UP PRL. Naklad 100 egz. Cena 400 zl PLThe 5-amino-3-methyl-4-isoxazole carboxylic acid is cyclized with trichloroacetic aldehyde. Wzbr 1 Wzbr 3 Printing House of the Polish People's Republic. Mintage 100 copies. Price PLN 400 PL
PL26438487A 1987-03-02 1987-03-02 Method of obtaining novel 5-/4-chlorophenyl/-3-methyl-6-trichloromethylisoxazolo-5,4-d-6,7-dihydro-7h-pyrimidin-4-one PL148241B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL26438487A PL148241B1 (en) 1987-03-02 1987-03-02 Method of obtaining novel 5-/4-chlorophenyl/-3-methyl-6-trichloromethylisoxazolo-5,4-d-6,7-dihydro-7h-pyrimidin-4-one

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL26438487A PL148241B1 (en) 1987-03-02 1987-03-02 Method of obtaining novel 5-/4-chlorophenyl/-3-methyl-6-trichloromethylisoxazolo-5,4-d-6,7-dihydro-7h-pyrimidin-4-one

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PL264384A1 PL264384A1 (en) 1988-09-15
PL148241B1 true PL148241B1 (en) 1989-09-30

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PL26438487A PL148241B1 (en) 1987-03-02 1987-03-02 Method of obtaining novel 5-/4-chlorophenyl/-3-methyl-6-trichloromethylisoxazolo-5,4-d-6,7-dihydro-7h-pyrimidin-4-one

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