CS224926B1 - The 6,11-dihydrodibenzo /b,e/thiepine-11-carboxamide - Google Patents

The 6,11-dihydrodibenzo /b,e/thiepine-11-carboxamide Download PDF

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Publication number
CS224926B1
CS224926B1 CS377682A CS377682A CS224926B1 CS 224926 B1 CS224926 B1 CS 224926B1 CS 377682 A CS377682 A CS 377682A CS 377682 A CS377682 A CS 377682A CS 224926 B1 CS224926 B1 CS 224926B1
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CS
Czechoslovakia
Prior art keywords
thiepine
dihydrodibenzo
carboxamide
mice
dose
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CS377682A
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Czech (cs)
Inventor
Miroslav Ing Csc Rajsner
Miroslav Dr Ing Drsc Protiva
Antonin Mudr Csc Dlabac
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Rajsner Miroslav
Protiva Miroslav
Dlabac Antonin
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Application filed by Rajsner Miroslav, Protiva Miroslav, Dlabac Antonin filed Critical Rajsner Miroslav
Priority to CS377682A priority Critical patent/CS224926B1/en
Publication of CS224926B1 publication Critical patent/CS224926B1/en

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Description

Látka vzorce I podle vynálezu se vyznačuje protikřečovou aktivitou, má tedy vlastnosti léčiva použitelného proti epilepsii. V testu na myších je velmi málo jedovatá; orální dávka 2 g/kg způsobuje úhyn pouze 20 % myší. Střední letální dávka LD^q je tedy vyšší než 2 g/kg. Látka zabraňuje výskytu křečí u myší vyvolávaných pentetrazolem a rovněž snižuje mortalitu myší po pentetrazolu; střední účinná protikřečová dávka, PD^q je 140 mg/kg p.o. Dávka zabraňující mortalitě u 50 % zvířat se pohybuje mezi 50 a 100 mg/kg p.o. V testu nikotinových křečí při intraperitoneálním podání u myší je střední účinná dávka PD^0 rovna 214 mg/kg. V testu maximálního elektrošoku u myší je při orálním podání střední účinná dávka zabraňující křečím PD^0 = 116 mg/kg. Látka je tedy účinnější než některá běžně užívaná antikonvulsiva, např. fenytoin.The compound of the formula I according to the invention is characterized by anticonvulsant activity and thus has the properties of a medicament useful against epilepsy. It is very toxic in the mouse test; an oral dose of 2 g / kg causes death in only 20% of the mice. Thus, the median lethal dose of LD 50 is greater than 2 g / kg. The agent prevents seizures in pentetrazole-induced mice and also reduces the mortality of mice after pentetrazole; mean effective anticonvulsant dose, PD ^ q is 140 mg / kg po The mortality prevention dose in 50% of the animals is between 50 and 100 mg / kg after the intraperitoneal administration in mice, the mean effective dose PD4 0 is 214 mg / kg. In the maximal electroshock test in mice when administered orally median effective dose preventing convulsions PD ^ 0 = 116 mg / kg. Thus, the agent is more effective than some commonly used anticonvulsants such as phenytoin.

Látku vzorce I lze získat ze známé kyseliny 6,11-dihydrodibenzo(b,e)thiepin-11-karboxylové (Rajšner M., Bártl V., Šindelář K., Svátek E., Holubek J., Metyš J., Protiva M.: Collect. Czech.Chem.Commun. 44. 2536, 1979) tak, jax je to popsáno v příkladu provedení. Spočívá to v reakci jmenované kyseliny s thionylchloridem a v následujícím působení vodného amoniaku na vzniklý, avšak v čistém stavu neisolovaný chlorid jmenova2 né kyseliny.The compound of formula I can be obtained from the known 6,11-dihydrodibenzo (b, e) thiepine-11-carboxylic acid (Rajšner M., Bartl V., Šindelář K., Svátek E., Holubek J., Metés J., Protiva M Chem. Commun. 44, 2536 (1979) as described in the exemplary embodiment. This consists in the reaction of the said acid with thionyl chloride and subsequent treatment with aqueous ammonia on the formed, but not pure, chloride of the said acid.

224 926224 926

Identita látky I podle vynálezu byla zajištěna analysou v Ί a dále pomocí IC a H NMR spektra. Přípravu lze provést tímto způsobem:The identity of the compound I according to the invention was ensured by analysis in v and further by means of the IC and 1 H NMR spectra. The preparation can be carried out as follows:

Ke směsi 3,1 g 6,11-dihydrodibenzo(b,e)thiepin-11-karbcxylové kyseliny (literatura citována) a 20 ml benzenu se přidáTo a mixture of 3.1 g of 6,11-dihydrodibenzo (b, e) thiepine-11-carboxylic acid (literature cited) and 20 ml of benzene is added

2,9 g thionylchloridu a směs se vaří 5 h pod zpětným chladičem. Benzen a přebytečný thionylchlorid se odpaří za sníženého tlaku, zbytek se rozpustí ve 3 ml acetonu a roztok se zvolna přidá ke 20 ml míchaného koncentrovaného hydroxidu amonného. Po stání přes noc se vyloučený pevný produkt odsaje a matečný louh se zpracuje částečným odpařením. Ze zbytku se vyloučí II. produkt. Celkem se získá 2,4 g (75 %) téměř čistého produktu tajícího při 177,5 až 179,5 °C. Jedinou rekrystalisací z ethanolu se získá zcela čisté látka tající při 179 až 180 °C.2.9 g of thionyl chloride and the mixture was refluxed for 5 h. The benzene and excess thionyl chloride are evaporated under reduced pressure, the residue is dissolved in 3 ml of acetone and the solution is slowly added to 20 ml of stirred concentrated ammonium hydroxide. After standing overnight, the precipitated solid product is filtered off with suction and the mother liquor is treated by partial evaporation. II. product. A total of 2.4 g (75%) of an almost pure product melting at 177.5-179.5 ° C was obtained. A single recrystallization from ethanol yields a pure substance melting at 179-180 ° C.

Claims (1)

P Ř E D lvi Ε Τ V ϊ E Á L E Z UP R E L l Ε Τ ϊ E A L E Z U 6,11-Dihydrodiben.zo(b,e)thiepin-11-karboxamid vzorce I6,11-Dihydrodibenzo (b, e) thiepine-11-carboxamide of formula I 224 926 (I)224 926 Cena: 2,40 KčsPrice: 2,40 Kčs Vytiskly Moravské tiskařské závody,Printed by Moravian Printing Works,
CS377682A 1982-05-21 1982-05-21 The 6,11-dihydrodibenzo /b,e/thiepine-11-carboxamide CS224926B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS377682A CS224926B1 (en) 1982-05-21 1982-05-21 The 6,11-dihydrodibenzo /b,e/thiepine-11-carboxamide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS377682A CS224926B1 (en) 1982-05-21 1982-05-21 The 6,11-dihydrodibenzo /b,e/thiepine-11-carboxamide

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CS224926B1 true CS224926B1 (en) 1984-02-13

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