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Table 1 1H and 13C NMR spectroscopic data for 1and 2

From: Anti-cancer activity of new benzyl isoquinoline alkaloid from Saudi plant Annona squamosa

No. 1a 2b
δC type δH mult. (J) δC type δH mult. (J)
1 77.230 5.610 br s 55.157 4.427 m
3 d 3.00–4.00 m 38.95 3.35, 3.25 c
4 29.715 3.00-4.00 m 24.88 2.962, 2.858 m
4a d 122.72
5 111.109 6.849 s 115.35 6.727 s
6 147.196 147.05
7 149.079 144.81
8 110.966 6.649 s 11.85 6.563 s
8a d 124.72
α d 38.79 3.152,3.025dd (18,8)
1   126.31
2 131.342 7.028 d (10.5) 130.566 7.132 d (10)
3 114.072 6.838 d (10.5) 111.813 6.786 d (10)
4 158.906 156.33
5 114.072 6.838 d (10.5) 111.813 6.786 d (10)
6 131.342 7.028 d (10.5) 130.566 7.132 d (10)
6-OCH3 55.455 3.884 s 55.526 3.752 s
7-OCH3 55.326 3.798 s
4-OCH3 55.906 3.468 s
N-CH3 40.046 2.885 s
  1. a Data were recorded in CDCl3 500 MHz (1H) and 75 MHz (13C)
  2. b Data were recorded in DMSO-d6 at 500 MHz (1H) and 75 MHz (13C)
  3. c Overlapped
  4. d Not detected but appears in HMBC