Identify the reaction conditions that would give a product most consistent with the $^1H$ NMR peaks provided. All of the spectra were obtained in $CDCl_3$.
$^1$H NMR peaks for product
3.70 ppm (doublet of quartets, J=10.4 and 6.4 Hz, 1H)
2.01 ppm (doublet of septets, J=10.4 and 6.8 Hz, 1H)
1.71 ppm (doublet, J=6.4 Hz, 3H)
0.88 ppm (doublet, J=6.8 Hz, 6H)