Triethylamine → HCID 57989013, compound

Participants

Reaction Conditions

Reaction Steps

A solution of (R)-tert-butyl 9-bromononyl(2-hydroxy-2-(4-hydroxy-2-oxo-2,3-dihydrobenzo[d]thiazol-7-yl)ethyl)carbamate (example 183-222, step b) (1.68 g) in MeCN (8 mL) was added dropwise to a solution of 2,2,2-trifluoro-1-(1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)ethanone trifluoroacetate (example 12, step d) (1.18 g) and triethylamine (0.81 mL) in MeCN (8 mL). The resulting mixture was stirred at 80° C. for 18 h. The reaction was allowed to cool to RT and the solvent was removed in vacuo. The brown residue was taken up in DCM and the organic layer was washed with water (×2) and brine, dried over sodium sulphate, filtered and evaporated in vacuo. The brown foam was purified by silica gel chromatography eluting with 0-10% MeOH/DCM to give the subtitled compound as a white solid. Yield 500 mg.

Provenance & Evidence