Piconol → HCID 54172018, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 57 mg (0.33 mmol) of diethyl-azodicarboxylate in 0.15 ml of anhydrous tetrahydrofuran is added dropwise, with stirring and cooling (internal temperature 0° C.), to 100 mg (0.33 mmol) of 2-amino-6-(3-(3-hydroxy-phenyl)allyl)-4,5,7,8-tetrahydro-6H-thiazolo[5,4-d]azepine and 36 mg (0.33 mmol) of 2-(hydroxymethyl)-pyridine and 86 mg (0.33 mmol) of triphenylphosphine in 1 ml of anhydrous tetrahydrofuran. After stirring overnight, whilst heating to ambient temperature, a further 0.33 mmol of triphenylphosphine and diethyl-azodicarboxylate are added at 0° C. and the mixture is stirred for another hour at ambient temperature. It is evaporated down in vacuo and distributed between ethyl acetate and water. The ethyl acetate phase is extracted with 2N hydrochloric acid. The aqueous hydrochloric acid phase is made alkaline with conc. ammonia and extracted with ethyl acetate; the organic phase is dried, filtered and evaporated down in vacuo. The evaporation residue is purified by column chromatography on silica gel (chloroform/methanol=5:1). Yield: 13 mg (10% of theory), Melting point: 35°-40° C. (foamy). Molecular peak (m/z): Calculated: 392 Found: 392

Provenance & Evidence