Novel phthalide derivatives identified from Ligusticum chuanxiong (Chuanxiong)

Chinese Medicine

Table 2 1H and 13C NMR data for the fatty acid moieties of 1–6 (CDCl₃, δ in ppm, J in Hz)*

Position	Palmitoyl for 1 and 2		Oleoyl for 3 and 4		Linoleoyl for 5 and 6
Position	δ _C	δ _H	δ _C	δ _H	δ _C	δ _H
1′	174.0 for 1 173.3 for 2		174.0 for 3 173.3 for 4		174.0 for 5 173.3 for 6
2′	34.4	2.32 for 1 2.29 for 2	34.4	2.33 for 3 2.30 for 4 1.62 for 3 1.60 for 4	34.4	2.33 for 5 2.29 for 6
3′	25.0	1.62 for 1 1.59 for 2	25.0	2.33 for 3 2.30 for 4 1.62 for 3 1.60 for 4	25.0	1.63 for 5 1.59 for 6
4′	29.2–29.8	1.22–1.32	29.2–29.9	1.24–1.37	29.2–29.7	1.24–1.37
5′	29.2–29.8	1.22–1.32	29.2–29.9	1.24–1.37	29.2–29.7	1.24–1.37
6′	29.2–29.8	1.22–1.32	29.2–29.9	1.24–1.37	29.2–29.7	1.24–1.37
7′	29.2–29.8	1.22–1.32	29.2–29.9	1.24–1.37	29.2–29.7	1.24–1.37
8′	29.2–29.8	1.22–1.32	27.4	2.01	27.3	2.04
9′	29.2–29.8	1.22–1.32	129.9	5.35	130.2	5.36
10′	29.2–29.8	1.22–1.32	130.1	5.35	128.2	5.33
11′	29.2–29.8	1.22–1.32	27.3	2.01	25.8	2.76 (t, 6.0)
12′	29.2–29.8	1.22–1.32	29.2–29.9	1.24–1.37	128.1	5.33
13′	29.2–29.8	1.22–1.32	29.2–29.9	1.24–1.37	130.4	5.36
14′	32.1	1.24	29.2–29.9	1.24–1.37	27.3	2.04
15′	22.8	1.27	29.2–29.9	1.24–1.37	29.2–29.7	1.24–1.37
16′	14.3	0.87 (t, 6.7)	32.0	1.25	31.7	1.28
17′			22.8	1.29	22.7	1.29
18′			14.2	0.87 (t, 6.7)	14.2	0.88 (t, 6.8)

* Indiscernible signals owing to overlapping or having complex multiplicity are reported without designating multiplicity

ISSN: 1749-8546