Hydrochloric Acid → HCID 44226868, compound

Participants

Reaction Steps

A solution of (E)-1-(2,3-dihydro-1H-spiro[isoquinoline-4,4′-piperidine]-1′-yl)-3-(2-(trifluoromethyl)phenyl)prop-2-en-1-one HCl salt (40 mg, 0.09 mmol) in CH2Cl2 (4 mL) was treated with i-Pr2NEt (0.05 mL, 0.28 mmol) and MeSO2Cl (0.014 mL, 0.18 mmol). The mixture was stirred overnight at rt and applied to a 10-mL Chem-Elut cartridge that had been wetted with 5% aq HCl (6 mL). The cartridge was eluted with ether (20 mL). The eluate was concentrated and the residue was purified by prep HPLC to afford (E)-1-(2-(methylsulfonyl)-2,3-dihydro-1H-spiro[isoquinoline-4,4′-piperidine]-1′-yl)-3-(2-(trifluoromethyl)phenyl)prop-2-en-1-one (20 mg, 45%). 1H NMR (CDCl3) 1.77 (m, 1H), 1.88 (m, 1H), 2.04 (m, 1H), 2.13 (m, 1H), 2.92 (s, 3H), 3.00 (m, 1H), 3.23 (m, 1H), 3.47 (m, 1H), 3.90 (m, 1H), 4.02 (m, 1H), 4.37 (m, 1H), 4.59 (m, 1H), 4.78 (d, 1H), 6.82 (d, 1H), 7.05-7.75 (8H), 7.99 (d, 1H).

Provenance & Evidence