Table 4 ¹ H NMR spectral data of Maldi 531.2[M + H] ⁺

1.87

m

NHCO phenyl

2.70

s

-OCO-alkyl or phenyl

3.19

m

N-propyl CH2OH

3.42

m

Methyl CH3OH

3.61

m

CH2-OH

3.62

s

-

-OCH3

3.66

s

-

-OCH3

3.72

m

-

-OCO-CH3

3.82

d

6.72

-OCO- phenyl or methyl

3.97

dd

7.92; 6.24

Isopropyl CH-OH

4.23

d

14.22

-OCO-phenyl or n-propyl

4.58

bs

-

Phenolic –OH?

5.49

-OCO-phenyl

6.17

d

1.92

Aromatic H

6.28

d

1.80

Aromatic H

6.61

dd

8.24; 3.00

Aromatic H

6.89

d

6.90

Aromatic H

6.99

m

Aromatic H

7.03

m

Aromatic H

7.11

dd

8.94; 3.00

Aromatic H

7.90

s

-

Aromatic H