Table 2
1
H NMR assignments and chemical shifts for the metabolite of dobutamine shown in Fig. 5
Proton Designation
No. of Protons
Chemical Shifts
ppm
a
3
1.08–1.18
b
2
1.57–1.88
c
2
2.11–2.25
d
2
2.41–2.60
e
2
2.65–2.80
f
3
3.90
g
3
6.61–6.70
h
2
6.75–6.80
i
2
6.85–6.92