“…Spectroscopic data are identical to those in the literature. 16 Compound 5h: brown viscous oil; R f = 0.27 (50% EtOAc/petrol); IR (neat) ν max 3336,2934,2853,1699,1612,1595,1462,1323,1227,1086,750, and 729 cm −1 ; 1 H NMR (500 MHz) δ 7.36 (1H, d, J = 7.5 Hz, ArH), 7.20 (1H, t, J = 8.0 Hz, ArH), 6.95 (1H, t, J = 7.5 Hz, ArH), 6.87 (1H, d, J = 8.0 Hz, ArH), 4.89 (1H, dt, J = 7.5, 1.5 Hz, CCH), 4.75 (1H, s, CHN), 3.69 (2H, t, J = 6.5 Hz, CH 2 OH), 2.75 (1H, brs, OH), 2.54−2.52 (2H, m, CH 2 N), 2.41−2.34 (4H, m, CH 2 N and C CHCH 2 ), 1.73 (2H, quint, J = 7.0 Hz, CH 2 CH 2 CH 2 ), 1.56−1.48 (4H, m, 2 × CH 2 ), 1.40−1.36 (2H, m, CH 2 ); 13 C NMR (125 MHz) δ 158.0 (ArCO), 153.3 (OCCHAr), 129.3 (ArCH), 126.3 (ArCH), 125.9 (ArC), 121.6 (ArCH), 109.5 (ArCH), 105.1 (CCHAr), 66.9 (CHN), 62.1 (CH 2 OH), 49.4 (2 × CH 2 N), 32.5 (CH 2 ), 26.3 (2 × CH 2 ), 24.5 (CH 2 ), 21.5 (CCHCH 2 ); HRESIMS calcd for C 17 H 24 NO 2 (M + H) + 274.1807; found 274.1807.…”