Metabolite

Chemical shift (δ)

p value

H

P

T

120 vs 150 vs 180 DAT

120 vs 150 vs 180 DAT

120 vs 150 vs 180 DAT

Andrographolide (A) (1)

6.91 (m), 4.54 (dd, J = 5.0, 10.0 Hz), 4.09 (d, J = 10.0 Hz), 1.92 (s),

1.32 (d, J = 7.50 Hz), 1.16 (s), 0.72 (s)

>0.05

<0.05

>0.05

Deoxyandrographolide (D) (2)

4.16 (d, J = 6.5 Hz)

ND

ND

ND

Neoandrographolide (N) (3)

7.40 (s), 4.27 (d, J = 10 Hz), 1.00 (s), 0.64 (s)

>0.05

>0.05

>0.05

α-Glucose (a-Glc)

5.20 (d, J = 4.0 Hz)

ND

ND

ND

β-Glucose (b-Glc)

4.60 (d, J = 8.0 Hz)

ND

ND

ND

Sucrose (S)

5.40 (d, J = 3.9 Hz)

ND

ND

ND

Choline (C)

3.20 (s)

ND

ND

ND

Alanine (Ala)

1.48 (d, J = 7.5 Hz)

ND

ND

ND