Isolation and Biological Evaluation of Prenylated Flavonoids from Maclura pomifera

Table 2

¹³C NMR data of compounds I–IV.

Carbon	^aCompound I	^aCompound II	^aCompound III	^bCompound IV
2	154.3	154.0	150.1	154.5
3	122.1	122.6	124.8	123.0
4	181.0	180.6	173.8	181.2
4a	105.2	104.6	105.3	105.8
5	156.6	159.3	154.3	157.3
6	104.4	108.1	108.3	104.9
7	155.1	156.8	151.8	156.4
8	106.4	100.0	100.8	104.3
8a	154.1	150.1	153.8	155.3
1′	121.6	121.5	122.7	121.7
2′	119.9	120.0	114.8	120.4
3′	145.6	145.6	130.4	146.2
4′	144.9	144.9	157.1	145.4
5′	116.6	116.6	130.4	117.0
6′	115.5	115.4	114.8	115.9
1′′	115.2	195.4	25.7	115.1
2′′	128.7	86.7	66.6	129.4
3′′	77.8	144.6	78.1	79.0
4′′	27. 9	112.9	25.4	28.4
5′′	27.8	16.7	20.7	28.1
1′′′	24.3	127.7	127. 6	75.0
2′′′	74.0	114.1	114. 7	65.0
3′′′	77.0	78.3	77.8	57.3
4′′′	21.8	27.8	27.9	25.0
5′′′	20.6	27.7	27.8	19.6
OMe	48.6	-	-	56.4

^aData acquired at 125 MHz. ^bData acquired at 100 MHz.