Trifluoroacetic acid → HCID 54195265, compound

Participants

Reaction Steps

To a stirred solution of 200 mg (0.32 mmol) 2-methyl-butyric acid 8-[6-benzylcarbamoyl-5-(tert.-butyl-dimethyl-silanyloxy)-3-oxo-hexyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydro-naphthalen-1-yl ester in 5 ml methylene chloride are added 0.3 g (2.6 mmol) trifluoroacetic acid. After 2 hours at room temperature the reaction mixture is quenched with saturated aqeous sodium bicarbonate. The aqueous phase is separated and extracted twice with ethyl acetate. The combined organic phases are dried over sodium sulfate and the solvent is evaporated. The residue is chromatographed over silica gel (hexane/ethyl acetate 7/3 to 2/3) affording the title compound as a white powder foam. MS (FAB) m/z 480 ([M+Li]+)

Provenance & Evidence