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. Author manuscript; available in PMC: 2013 Sep 15.
Published in final edited form as: Bioorg Med Chem Lett. 2012 Aug 3;22(18):5885–5888. doi: 10.1016/j.bmcl.2012.07.075

Table 1.

1Ha and 13Cb NMR Data of Compounds 1 and 2

1H 13C
# 1 2 1 2
2 164.1, C 164.6, C
3 126.9, C 128.6, C
4 7.52, br s 7.92, br s 141.4, CH 143.1, CH
4a 116.7, C 117.0, C
5 6.76, br s 7.02, br s 106.1, CH 105.3, CH
6 152.0, C 156.5, C
6a 117.6, C 120.4, C
7 157.2, C 160.2, C
8 6.97, d (8.4) 7.14, d (7.8) 108.0, CH 112.1, CH
9 7.49, t (8.4) 7.59, t (7.8) 128.5, CH 131.5, CH
10 8.14, d (8.4) 7.86, d (7.8) 115.8, CH 116.2, CH
10a 126.4, C 128.9, C
10b 143.6, C 146.2, C
3-Me 2.26, s 2.14, s 17.1, CH3 19.9, CH3
6-OMe 3.87, s 59.4, CH3
7-OMe 4.10, s 3.88, s 56.9, CH3 59.4, CH3
a

δ (ppm) 600 MHz; multiplicities; J values (Hz) in parentheses; 1 in CDCl3; 2 in DMSO-d6.

b

δ (ppm) 150 MHz; 1 in 50% CDCl3/CD3OD; 2, in DMSO-d6, chemical shifts from gHSQC and gHMBC.