Table 4 in The grass root endophytic fungus Flavomyces fulophazii: An abundant source of tetramic acid and chlorinated azaphilone derivatives

Table 4 NMR spectroscopic data of E and Z diastereoisomers of 11-hydroxyvermelhotin (compound 2) in DMSO d 6 and methanol- d 4.
No. aDMSO d 6methanol- d b 4δ H (E -)δ C (E -)δ H (Z -)δ C (Z -)δ Hδ C1 (NH)7.50, brs, 1H7.60, brs, 1H––2170.4169.7–175.9397.997.7–98.94192.4193.9194.553.53, s, 2H51.33.59, s, 2H51.83.80, s, 2H54.96163.5164.8–164.478.07, d, (9.4), 1H115.18.05 d, (9.4), 1H114.98.17, br, 1H116.087.62, dd (9.4, 7.2),1H142.07.65, dd (9.4, 7.2), 1H142.57.67, dd (9.2, 7.0), 1H144.796.64 d (7.2), 1H109.06.62 d (7.2), 1H108.76.68, d (7.0), 1H110.110–157.6–157.5–160.9112.74 m, 2H40.42.69, m, 2H39.92.85,m, 2H41.4124.19, m, 1H61.34.14, m, 1H60.74.29, m, 1H61.7131.14, d (6.0), 3H21.91.13, d (6.0), 3H21.81.25 d (6.0), 3H22.4
a Corresponding numbered molecular structure is found in Fig. 2.
b Diastereoisomers E and Z hydroxyvermelhotin could not be separately detected in methanol- d.