(2S)-2-(8-amino-1-bromoimidazo[1,5-a]pyrazin-3-yl)-1-Pyrrolidinecarboxylic acid phenylmethyl ester

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H302：Gesundheitsschädlich bei Verschlucken.

  H315：Verursacht Hautreizungen.

  H319：Verursacht schwere Augenreizung.

  H335：Kann die Atemwege reizen.

• Sicherheit

  P261：Einatmen von Staub vermeiden.

  P305+P351+P338：BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.

(2S)-2-(8-amino-1-bromoimidazo[1,5-a]pyrazin-3-yl)-1-Pyrrolidinecarboxylic acid phenylmethyl ester Chemische Eigenschaften,Einsatz,Produktion Methoden

• Verwenden

  (2S)-2-(8-amino-1-bromoimidazo[1,5-a]pyrazin-3-yl)-1-Pyrrolidinecarboxylic acid phenylmethyl ester is used to Acalabrutinib intermediate.

• Synthese

  
  Compound 4b (46.33 g, 100 mmol) and toluene (463 mL) were added to a three-neck flask.After stirring uniformly, trifluoroacetic acid (18.02 g, 300 mmol) was slowly added.Heat to 75-80 ?? C for 6-8 hours.The raw materials disappeared and then cooled to room temperature.Wash with 5% sodium hydroxide solution (463 mL).Washed once with saturated saline (231 mL),Dry over sodium sulfate, filter,The filtrate was added with ammonium acetate (38.54 g, 500 mmol).Heating and refluxing for 10 to 16 hours,The reaction was cooled to room temperature.Add water (463 mL),Dispensing after stirring,The aqueous phase was extracted once more with toluene,The combined organic phases were washed with saturated brine (231 mL).Dry with sodium sulfate,Concentrated to remove the solvent,Isopropanol petroleum ether mixed solvent recrystallized,Filter, dryCompound 6b (31.64 g, 2 steps 76%) was dried.

(2S)-2-(8-amino-1-bromoimidazo[1,5-a]pyrazin-3-yl)-1-Pyrrolidinecarboxylic acid phenylmethyl ester Upstream-Materialien And Downstream Produkte

(2S)-2-(8-amino-1-bromoimidazo[1,5-a]pyrazin-3-yl)-1-Pyrrolidinecarboxylic acid phenylmethyl ester Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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