Skip to main content

Table 1 H-1-NMR and C-13-NMR resonances of compound 1 compared to solamargine

From: Solamargine, a bioactive steroidal alkaloid isolated from Solanum aculeastrum induces non-selective cytotoxicity and P-glycoprotein inhibition

  

Solamargine (19) (deuterated chloroform and methanol)

Compound 1 (2015) (deuterated methanol)

 

Carbon no (type)

C13-NMR

H-1-NMR (J in Hz)

C13-NMR

H-1-NMR (J in Hz)

Aglycone

C-1 (CH2)

37.9

 

38.70

 

C-2 (CH2)

30.5

 

31.13

 

C-3 (CH)

79

 

79.50

 

C-4 (CH2)

40.4

 

41.19

 

C-5 (C)

141.1

 

142.07

 

C-6 (CH)

122.2

5.37 (d, J 4.2)

122.78

5.38 (d, J 4.6)

C-7 (CH2)

32.5

 

32.94

 

C-8 (CH)

32.1

 

31.81

 

C-9 (CH)

50.7

 

51.90

 

C-10 (C)

37.5

 

38.20

 

C-11 (CH2)

21.4

 

22.15

 

C-12 (CH2)

38.9

 

39.67

 

C-13 (C)

41.1

 

41.77

 

C-14 (CH)

57.1

 

57.90

 

C-15 (CH2)

30.1

 

30.90

 

C-16 (CH)

79.7

4.33 (m)

80.45

4.34 (m)

C-17 (CH)

63.2

 

64.21

 

C-18 (CH3)

16.8

0.84 (s)

17.00

0.83 (s)

C-19 (CH3)

19.6

1.05 (s)

19.91

1.05 (s)

C-20 (CH)

42

 

42.85

 

C-21 (CH3)

15.4

0.97 (d, J 7.0)

15.60

0.97 (d, J 7.2)

C-22 (C)

98.9

 

99.60

 

C-23 (CH2)

34.4

 

33.36

 

C-24 (CH2)

32.7

 

33.14

 

C-25 (CH)

31.3

 

31.81

 

C-26 (CH2)

47.8

2.6 (m, br)

48.47

2.53 (m)

C-27 (CH3)

19.6

0.87 (d, J 6.0)

19.98

0.85 (d, J 6.4)

Glucose (glu)

C-1′ (CH)

99.9

4.48 (d, J 7.8)

100.63

4.50 (d, J 7.6)

C-2′ (CH)

79.5

 

80.23

 

C-3’(CH)

77.3

 

78.19

 

C-4′ (CH)

75.7

 

76.73

 

C-5′ (CH)

78.6

 

79.50

 

C-6′ (CH2)

61.4

 

62.12

 

Rhamnose A (rha A)

C-1″ (CH)

102.4

4.87 (s)

103.16

4.84 (s)

C-2″ (CH)

71.8

 

72.60

 

C-3″ (CH)

71.5

 

72.35

 

C-4″ (CH)

73.3

 

74.10

 

C-5″ (CH)

69.1

 

69.94

 

C-6″ (CH3)

17.7

1.29 (m)

18.11

1.26 (m)

Rhamnose B (rha B)

C-1″‘(CH)

101.5

5.23 (s)

102.44

5.21 (s)

C-2″‘(CH)

71.6

 

72.52

 

C-3″‘(CH)

71.3

 

72.35

 

C-4″‘(CH)

73

 

73.89

 

C-5″‘(CH)

70.1

 

70.85

 

C-6″‘(CH3)

17.6

1.29 (m)

18.0.

1.26 (m)