Acetyl chloride → 7-(3-Azaspiro[5.5]undecan-9-yl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyrazine dihydrochloride

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Reaction Steps

Acetyl chloride (5 eq.) was added to an ice-cold solution of tert-butyl 9-(5,6-dihydro-[1,2,4]triazolo[1,5-a]pyrazin-7(8H)-yl)-3-azaspiro[5.5]undecane-3-carboxylate (0.666 mmol, 1 eq.) in ethanol (5 ml). The reaction mixture was stirred at room temperature for overnight. The white solid was filtered out, washed with diethyl ether and dried in vacuo. Yield: 91%

Provenance & Evidence