. 2017 Jan 9;7:40158. doi: 10.1038/srep40158

Table 4. ¹³C NMR data for 3′-N-acetylascosin A2 methyl ester (A2*).

¹³C atom no.	¹³C δ (p.p.m.)	¹³C atom no.	¹³C δ (p.p.m.)
Aglycone		32	132.9
1	166.9	33	133.9
2	49.0	34	132.2
3	202.0	35	137.9
4	42.5	36	40.3
5	17.5	37	80.9
6	43.0	38	31.2
7	209.4	39	37.4
8	50.6	40	37.0
9	56.0	41	71.5
10	43.9	42	42.1
11	72.4	43	198.0
12	44.1	Me36	16.5
13	68.9	Me38	15.7
14	46.9	Me40	12.3
15	98.0	COOMe	173.9
16	45.0	COOMe	51.7
17	66.2	Aromatic carbons
18	58.6	CA	113.2
19	68.1	CB	131.3
20	37.7	C*CO	154.2
21	76.1	C*NH2	126.7
22	137.5
23	131.5	3′-N-acetylmycosamine moiety
24	134.7	1′	98.5
25	127.9	2′	70.8
26	132.9	3′	55.9
27	125.1	4′	72.2
28	124.9	5′	74.8
29	130.3	6′	18.4
30	132.4	NHCOMe	170.8
31	134.2	NHCOMe	22.8

Table 4. 13C NMR data for 3′-N-acetylascosin A2 methyl ester (A2*).