TABLE 1

NMR assignments of ICNA, M1a, M1b, and M2

Position1H NMR13C NMR
ICNAM1aM1bM2ICNAM1aM1bM2
2, 2′′4.76, 2H, m4.79, 2H, m4.78, 2H, m4.78, 2H81.081.0, 81.481.0, 81.481.0
3, 3′′3.71, 2H, m3.71, 2H, m3.71, 2H, m3.71, 2H47.649.149.147.6
4, 4′′195.3195.1195.1195.1
5, 5′′163.9163.9163.9163.9
6, 6′′5.76, 2H, d, 1.5 Hz5.76, 1H, d, 1.5 Hz; 6.06, 1H, d, 1.0 Hz5.77, 1H, d, 1.5 Hz; 6.07, 1H, d, 1.0 Hz5.76, 2H96.796.896.896.8
7, 7′′167.4167.6, 165.6167.6, 165.6167.6
8, 8′′5.89, 2H, d, 1.5 Hz5.89, 1H, d, 1.5 Hz; 6.15, 1H, d, 1.5 Hz5.90, 1H, d, 1.5 Hz; 6.15, 1H5.90, 2H95.595.695.695.6
9, 9′′162.9162.9162.9162.9
10, 10′′101.5101.4, 99.4101.4, 99.4101.5
1′, 1′′′127.1126.9126.8127.1
2′, 2′′′, 6′, 6′′′6.99, 4H, d, 8.5 Hz7.00, 4H, d, 8.0 Hz7.01, 4H, d, 8.5 Hz7.06, 7.12, 4H129.9129.9129.9123.0
3′, 3′′′, 5′, 5′′′6.79, 4H, d, 8.5 Hz6.79, 4H, d, 8.5 Hz6.79, 4H, d, 8.0 Hz6.79, 2H; 6.95, 6.99, 2H116.0116.0116.0116.0, 116.7
4′, 4′′′158.8158.9158.9158.8, 158.1

  • d, doublet; m, multiplet.