tert-butyl N-(4-aminobutyl)carbamate → HCID 18783946, compound

Participants

Reaction Steps

0.72 g (2.97 mmol) of 2,4-Dichloro-3-nitroquinoline and 0.56 g (2.97 mmol) of N-(tert-butoxycarbonyl)-1,4-diaminobutane were heated in 12 ml of triethylamine at 70° C. and stirred for 1.5 hours. After the reaction mixture was concentrated under reduced pressure, the residue was dissolved in methylene chloride, washed with water, and dried (MgSO4). The solvent was distilled off under reduced pressure. The residue was triturated with n-hexane-diethyl ether (1:1 (v/v)) and collected by filtration to obtain 0.97 g (2.46 mmol) of 4-[4-(tert-butoxycarbonylamino)butylamino]-2-chloro-3-nitroquinoline shown below as yellow powder (mp: 125-126.5° C.). ##STR41## Its spectroscopic data are as follows: IR (KBr) cm-1 : 3340, 3280, 1680, 1540, 1520. 1H-NMR (CDCl3) δ (ppm) :1.46 (9H, s), 1.63 (2H, m), 1.78 (2H, m), 3.19 (2H, q, J=6.4 Hz), 3.47 (2H, q, J=61 Hz), 4.68 (1H, br), 6.41 (1H, b r), 7.52 (1H, t, J=7.7 Hz), 7.74 (1H, t, J=7.8 Hz), 7.91 (1H, d, J=8.4 Hz), 8.11 (1H, d, J=8.4 Hz).

Provenance & Evidence