Hi all
Please some one help me solving this problem it is very difficult for me it is about spectroscopy, I couldn't solve it
Here is the question
What is the compound structure for this IR& NMR data


IR: 3450, 3380, 3330, 3110, 2950,2225, 1720, 1640, 1600, 1270, 1250, 1240, 850, 760. Cm-1


NMR: 7.4(m, 4H) , 4.3(t, 1H) , 4.1(t, 2H) , 3.7(s, 1H) , 3.5(s, 2H) , 3.1(t, 2H) , 2.95(t, 2H) 2.6(q, 2H).chemical shift