Flavonoids, cinnamic acid and phenyl propanoid from aerial parts of Scrophularia striata

Figures & data

Figure 1.  Chemical structures of cinnamic acid (1), quercetin (2), isorhamnetin 3-O-rutinoside (3), nepitrin (4) and acteoside 1 (5) from Scrophularia striata.

Table 1.  ¹H NMR and ¹³C NMR spectroscopic data of isorhamnetin 3-O-rutinoside (3) and nepitrin (4) in CD₃OD.

Position	3		4
	δ ^1H	δ ^13C	δ ^1H	δ ^13C
2		158.4		166.2
3		135.5	6.6 s	105.2
4		179.2		184.0
5		162.9	6.5 s	152.1
6	6.1 d (2.4)	100.1		130.6
7		166.2		155.5
8	6.3 d (2.4)	95.0		96.0
9		158.8		153.8
10		105.6		106.7
1′		122.9		123.7
2′	7.8 d (2.4)	114.6	7.5 d (2.1)	110.8
3′		148.3		149.5
4′		150.8		151.3
5′	6.9 d (8.4)	116.1	6.9 d (8.5)	116.8
6′	7.6 dd (8.4, 2.4)	124.0	7.4 dd (8.5, 2.1)	121.7
OCH3	3.9 s	56.8	3.9 s	56.7
glucose
1′′	5.2 d (7.3)	104.5	5.1 d (7.3)	103.7
2′′	3.01-3.37 m	75.9	3.01-3.7 m	75.4
3′′	3.01-3.37 m	77.3	3.01-3.7 m	77.8
4′′	3.01-3.37 m	71.6	3.01-3.7 m	70.9
5′′	3.01-3.37 m	78.2	3.01-3.7 m	78.7
6′′	3.01-3.37 m	68.5	3.01-3.7 m	62.2
rhamnose
1′′′	4.5 d (1.5)	102.5
2′′′	3.01-3.37 m	72.0
3′′′	3.01-3.37 m	72.3
4′′′	3.01-3.37 m	73.8
5′′′	3.01-3.37 m	69.7
6′′′	1.1 d (6.0)	17.8