CS201998B1 - Carbamate derived from piperazinalkanol of dibenzo/b,f/tthiepine serie - Google Patents

Carbamate derived from piperazinalkanol of dibenzo/b,f/tthiepine serie Download PDF

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CS201998B1
CS201998B1 CS441479A CS441479A CS201998B1 CS 201998 B1 CS201998 B1 CS 201998B1 CS 441479 A CS441479 A CS 441479A CS 441479 A CS441479 A CS 441479A CS 201998 B1 CS201998 B1 CS 201998B1
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Czechoslovakia
Prior art keywords
dibenzo
tthiepine
piperazinalkanol
serie
formula
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CS441479A
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Czech (cs)
Inventor
Miroslav Protiva
Jiri Jilek
Antonin Dlabac
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Miroslav Protiva
Jiri Jilek
Antonin Dlabac
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Application filed by Miroslav Protiva, Jiri Jilek, Antonin Dlabac filed Critical Miroslav Protiva
Priority to CS441479A priority Critical patent/CS201998B1/en
Publication of CS201998B1 publication Critical patent/CS201998B1/en

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  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

Tento vynález se týká karbamátu odvozeného od piperazinoalkanolu dibenzo(b, f)thiepinové řady vzorce I,This invention relates to a carbamate derived from piperazinoalkanol dibenzo (b, f) of the thiepine series of formula I,

tj. 3-/4-(8-methylthio-10, 11-dihydrodibenzo/ b, f/thiepin-10-yl)-piperazino/propyl-N-oktylkarbamátu, jakož i jeho solí.ie 3- [4- (8-methylthio-10,11-dihydrodibenzo [b, f] thiepin-10-yl) piperazino] propyl N-octylcarbamate, and salts thereof.

Látka vzorce I je dlouhodobě působící antiemetikum, které současně nemá vlastnosti neuroleptika. Bylo to zjištěno při testování látky na antiapomorfinovou účinnost u psů a krys, přičemž látka byla podávána intramuskulárně ve formě 2,5 % roztoku base vzorce I v triglyceridu miglyolu. V testu antagonisace apomorfinového zvracení u psů byla látka podána v jediné dávce 5 mg/kg i. m, I když 100 % blokády emese nebylo dosaženo ani v prvním intervalu po podání (tj. po 7 dnech), přetrvávala blokáda emese u části psů ve skupině déle než 4 týdny a u jednoho psa ze skupiny 6 zvířat trvala dokonce déle než 6 týdnů. Naproti tomu dávka 25 mg/kg i. m. u krys nepůsobila inhibičně vůči apomorfinovým stereotypiím při hodnocení za 24 a 48 hodin po podání.The compound of formula (I) is a long-acting antiemetic agent which, at the same time, does not have the properties of a neuroleptic. This was found by testing the compound for antiapomorphine activity in dogs and rats, administered intramuscularly as a 2.5% solution of the base of Formula I in the triglyceride miglyol. In the apomorphine vomiting antagonism test in dogs, the compound was administered at a single dose of 5 mg / kg i.m., although 100% emesis block was not achieved even in the first interval after administration (i.e. after 7 days) the group lasted more than 4 weeks and in one dog from the group of 6 animals lasted even more than 6 weeks. In contrast, a dose of 25 mg / kg i.m. in rats did not inhibit apomorphine stereotypes when evaluated at 24 and 48 hours after administration.

Z právě uvedeného vyplývá, že látka vzorce I je vhodná k zábraně zvracení různého původu, přičemž není nutné se obávat vedlejších extrapyramidových reakcí, jako při použití neuroleptických antiemetik.It follows from the above that the compound of formula I is suitable for preventing vomiting of various origins, without the need to be afraid of side-effects of extrapyramidal reactions, such as when using neuroleptic antiemetics.

V příkladu provedení je popsán způsob přípravy látky vzorce I, který spočívá v reakci 10-/'4-(3-hydroxypropyl) piperaziho/-8-methyl-thio-10,11-diihydrodibenzo(b,f )thiepinu (Jílek J. O. a spol., Collect. Czěéh. Chem. Commun. 36, 2226, 1971) s oktylisokyanátem (Vološin A. I. a spol., Ž. Prikl.Chim· [Lenin grád] 37,1578, 1964) ve vroucím toluenu.In an exemplary embodiment, a process for the preparation of a compound of formula I is described which comprises reacting 10 - [4- (3-hydroxypropyl) piperazi] -8-methylthio-10,11-diihydrodibenzo (b, f) thiepine (Rye JO and Chem. Commun., 36, 2226, 1971) with octyl isocyanate (Voloshin AI et al., J. Chim · [Lenin Grad] 37, 1578, 1964) in boiling toluene.

Karbamát vzorce I je viskosní olej ovitá kapalina basického charakteru. K jeho charakterisači· se hodí infračervené a lH-NMR spektrum. Neutralisací kyselinami poskytuje krystalické soli, z nichž bis(hydrogenoxalát) taje v čistém stavu při 143 až 148 °C (krystaly z ethanolu).The carbamate of formula I is a viscous, oily liquid of basic nature. Infrared and 1 H-NMR spectra are suitable for its characterization. Acid neutralization yields crystalline salts of which the bis (hydrogen oxalate) melts in a pure state at 143-148 ° C (ethanol crystals).

Příklad provedení:Example:

Směs 9,5 g solvátu base 10-/4~(3-hydroxy~ propyl) piperazino, -8-methylthio-ÍO, ll-di201998 hydrodíbénzo(b,f)thiepinu s molekulou benzenu (Jílek J. O. a spol., Collect. Czech. Chem. Commun. 38, 1190, 1973), 80 ml toluenu a 5,0 g oktylisokyanátu se vaří 3 hodiny pod zpětným chladičem a odpaří ve vakuu. Zbytek se rozpustí v 70 ml 80 % vodného ethanolu a neutralisuje se 6,3 g dihydrátu kyseliny oxalové. Stáním a chlazením vykrystaluje 8,4 g (58 %) bis(hydrogenoxalátu) base vzorce I, t. t. 143 až 148 °C (ethanol). Rozkladem čistého oxalátu zředěným vodným amoniakem a extrakcí benzenem se získá čistá olejovitá base vzorce I, které lze použít k změření spekter i k přípravě lékových forem.A mixture of 9.5 g of the base 10- / 4- (3-hydroxypropyl) piperazino, -8-methylthio-10,11-di201998 hydrobenzene (b, f) thiepine solvate with a benzene molecule (Jílek JO et al., Collect. Chem. Commun. 38, 1190 (1973), 80 ml of toluene and 5.0 g of octyl isocyanate are refluxed for 3 hours and evaporated in vacuo. The residue is dissolved in 70 ml of 80% aqueous ethanol and neutralized with 6.3 g of oxalic acid dihydrate. On standing and cooling, 8.4 g (58%) of the bis (hydrogen oxalate) base of the formula I crystallized, m.p. 143 DEG-148 DEG C. (ethanol). Decomposition of the pure oxalate with dilute aqueous ammonia and extraction with benzene gives a pure oily base of formula I which can be used to measure the spectra as well as to prepare dosage forms.

Claims (1)

PftEDMÉŤPftEDMÉŤ Karbamát odvozený od piperazinoalkanolu di.benzo(b,f)thiepinové řady vzorceCarbamate derived from the piperazinoalkanol di.benzo (b, f) thiepine series of the formula VYNÁLEZU tj. 3-/4(8-methylthio-10,ll-dihydrodíbenzo(b, f) thiepin-10-yl)-piperazino/prapyl-N-oktylkarbamát, a jeho farmaceuticky nezávadné soli s anorganickými nebo organickými kyselinami.OF THE INVENTION ie 3- [4- (8-methylthio-10,11-dihydro-benzo (b, f) thiepin-10-yl) -piperazino / propyl-N-octylcarbamate, and pharmaceutically acceptable salts thereof with inorganic or organic acids.
CS441479A 1979-06-27 1979-06-27 Carbamate derived from piperazinalkanol of dibenzo/b,f/tthiepine serie CS201998B1 (en)

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CS441479A CS201998B1 (en) 1979-06-27 1979-06-27 Carbamate derived from piperazinalkanol of dibenzo/b,f/tthiepine serie

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CS441479A CS201998B1 (en) 1979-06-27 1979-06-27 Carbamate derived from piperazinalkanol of dibenzo/b,f/tthiepine serie

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