Ecothiopatiodid

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H300：Lebensgefahr bei Verschlucken.

  H400：Sehr giftig für Wasserorganismen.

• Sicherheit

  P261：Einatmen von Staub vermeiden.

  P264：Nach Gebrauch gründlich waschen.

  P264：Nach Gebrauch gründlich waschen.

  P270：Bei Gebrauch nicht essen, trinken oder rauchen.

  P271：Nur im Freien oder in gut belüfteten Räumen verwenden.

  P273：Freisetzung in die Umwelt vermeiden.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P301+P310：BEI VERSCHLUCKEN: Sofort GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.

  P302+P352：BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.

  P304+P340：BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.

  P311：GIFTINFORMATIONSZENTRUM/Arzt anrufen.

  P312：Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.

  P321：Besondere Behandlung

  P330：Mund ausspülen.

  P391：Verschüttete Mengen aufnehmen.

  P403+P233：An einem gut belüfteten Ort aufbewahren. Behälter dicht verschlossen halten.

  P405：Unter Verschluss aufbewahren.

  P501：Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

ECOTHIOPATE IODIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

• Originator

  Phospholine Iodide,Ayerst,US,1959

• Verwenden

  Cholinergic (ophthalmic).

• Verwenden

  Echothiophate is a phosphorylthiocholine with pharmacological action analogous to that of isofluorophate; however, spontaneous reduction of phosphorylated enzyme occurs faster after using isofluorophate. It is used in various forms of glaucoma.

• Definition

  ChEBI: The iodide salt of ecothiopate. An irreversible acetylcholinesterase inhibitor, it is used an ocular antihypertensive in the treatment of open-angle glaucoma, particularly when other drugs have proved inadequate.

• Manufacturing Process

  The reaction is carried out in an atmosphere of nitrogen. To a solution of 4.60 grams sodium (0.20 mol) in 60 cc of methanol is added 14.17 grams β- dimethylaminoethyl mercaptan hydro chloride (0.10 mol), rinsed in with 10 cc methanol. Solvent is removed at a water-pump vacuum while blowing with a slow stream of nitrogen to 100°C/20 mm. To the residue suspended in 150 cc benzene and cooled in an ice bath is added 17.25 grams diethylchlorophosphate (0.10 mol) in 3 portions at 10-minute intervals. After each addition, the temperature increases from about 4° to about 14°C and then falls. The mixture is stirred in an ice bath for one-half hour and while warming to room temperature during 2 hours is washed with 35 and 5 cc portions of water with two 10 cc portions of saturated brine and is dried over calcium sulfate and filtered.
  After removal of solvent by distillation under reduced pressure to 55°C/20 mm, the residue is 23.0 grams crude base (95% theory) as a pale yellow liquid. A sample of the crude base distills with some decomposition at 105° to 112°C/0.8 mm.
  A sample of distilled base in cold isopropanol is treated with excess methyl iodide, left at room temperature overnight, diluted with 5 volumes of ethyl acetate and filtered from the methiodide salt. This is purified by crystallization from mixtures of isopropanol and ethyl acetate, filtering hot to remove an impurity of low solubility. The pure methiodide is obtained as a white solid, MP 124° to 124.5°C, containing 99 mol percent thiol isomer.

• Trademarks

  Phospholine Iodide (Wyeth).

• Therapeutic Function

  Cholinergic (ophthalmic)

• Clinical Use

  Echothiophate iodide has found therapeutic application for the treatment of glaucoma and strabismus. Echothiophate is applied topically as a solution and is the only irreversible AChEI for the treatment of glaucoma. The decrease in intraocular pressure observed can last up to 4 weeks. Phosphoester AChEIs exhibit cataractogenic properties; thus, their use should be reserved for patients who are refractory to other forms of treatment (i.e., short-acting miotics, β-blockers, epinephrine, and possibly, carbonic anhydrase inhibitors). Because of its toxicity, echothiophate is not used for its systemic action. Selectivity of echothiophate for the AChE catalytic site was enhanced by incorporation in the molecule of a quaternary ammonium salt functional group two carbons removed from the phosphoryl group.

• Synthese

  Echothiophate, S-(2-trimethylaminoethyl)-O,O-diethylthiophosphate (13.2.23), is made by reacting diethylchlorophosphoric acid with 2-dimethylaminoethylmercaptane, giving S-(2-dimethylaminoethyl)-O,O-diethylthiophosphate (13.2.22), which is alkylated by methyliodide, forming echothiophate (13.2.23) [51].

  

ECOTHIOPATE IODIDE Upstream-Materialien And Downstream Produkte

Ecothiopatiodid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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