Toluene → (4-Isopropylthiazol-2-yl)(1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)methanone

Participants

Reaction Steps

A solution of tert-butyl 4-(4-isopropylthiazole-2-carbonyl)-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate (example 66, step a) (0.54 g) in DCM (20 mL) was treated with trifluoroacetic acid (5 mL) and the reaction mixture allowed to stand at 20° C. for 20 minutes. Toluene (40 mL) was added and the solvents removed under reduced pressure. The residue was azeotroped twice with acetonitrile to afford the subtitled compound. Yield 0.56 g.

Provenance & Evidence