Table 10: 1H NMR Data for 7a; chemical shifts in ppm relative to TMS(1%) at room temperature in CDCl3.

No. X Aromatic Ha Hb CH2(I) CH2(II) X
8.01(2H,d,J=8.5Hz) 3.89(4H,t,
7a p-CO2CH3 7.46(2H,d,J=8.5Hz) J=7.5Hz) 2.67(4H,br) 2.83(2H,t,J=8.0Hz) 2.68(2H,t,J=8.0Hz) 3.89(3H,s)
7.28(2H,t,J=7.5Hz)
7.21(2H,d,J=7.5Hz)
7.20(1H,t,J=7.0Hz)