1-(piperidin-4-yl)-3,4-dihydroquinolin-2(1H)-one → 1,1-dioxido-2-(4-(4-(3,4-dihydro-2-oxo-(1H)-quinolin-1-yl)-piperidin-1-yl)-butyl)-1,2-benzisothiazol-3(2H)-one

Participants

Reaction Steps

From the hydrochloride salt of 3,4-dihydro-1-(4-piperidyl)-2(1H)-quinolinone prepared according to H. Ogawa et. al. J. Med. Chem. 1993, 36, 2011-2017, and 2-(4-bromobutyl)-1,1-dioxido-1,2-benzothiazol-3(2H)-one using the procedure described for Example 15, Step 5 there was obtained 1,1-dioxido-2-(4-(4-(3,4-dihydro-2-oxo-(1H)-quinolin-1-yl)-piperidin-1-yl)-butyl)-1,2-benzisothiazol-3(2H)-one as a white solid: 1H NMR (300 MHz, CDCl3) 8.07 (dd, J=6.5, 2.3 Hz, 1H), 7.92 (t, J=6.73 Hz, 1H), 7.84 (m, 2H), 7.21 (t, J=8.73 Hz, 2H), 7.19 (m, 1H), 6.99 (t, J=7.13 Hz, 1H), 4.35 (tt, J=12.2, 4.2 Hz, 1H), 3.83 (t, J=7.32 Hz, 2H), 3.04 (d, J=11.42 Hz, 2H), 2.81 (t, J=6.59 Hz, 2H), 2.61 (m, 3H), 2.43 (t, J=7.19 Hz, 2H), 2.09 (t, J=11.71 Hz, 2H), 1.88 (m, 2H), 1.69 (m, 5H).

Provenance & Evidence