Table 3 in The grass root endophytic fungus Flavomyces fulophazii: An abundant source of tetramic acid and chlorinated azaphilone derivatives

Table 3 NMR spectroscopic data of E and Z diastereoisomers of vermelhotin (compound 5) in chloroform- d, DMSO d 6 and methanol- d 4. No. achloroform- dDMSO d 6methanol- d b 4δ H (E-)δ C (E-)δ H (Z-)δ C (Z-)δ H (E-)δ C (E-)δ H (Z-)δ C (Z-)δ Hδ C1 (N)5.62, 1H, brs–5.50, 1H, brs–7.45 brs, 1H–7.65 brs, 1H–––2–171.4–172.4–170.9–170.0–175.53–98.1–97.9–97.8–97.7–98.74192.5194.6–192.4–194.8–195.853.79, s, 2H50.43.82, s, 2H50.93.58, s, 2H49.93.63, s, 2H50.43.74, s, 2H54.86–165.4–166.7–163.9–165.3–162.378.17, d (9.2), 1H116.08.18, d (9.2), 1H116.58.03, d (9.0), 1H115.38.00, d (9.0), 1H115.18.10, br, 1H116.587.40, dd (9.2, 7.0),141.57.41, dd (9.2, 7.0),142.07.63, dd (9.0, 7.2),142.17.65, dd (9.0, 7.2),142.87.67 dd (9.4, 7.2),144.71H1H1H1H1H96.29, d (7.0), 1H107.56.28, d (7.0), 1H107.56.63, d (7.2), 1H108.16.63 d, (7.2), 1H108.06.60 d (7.2), 1H109.910–158.7–158.8–157.3–157.4–160.8116.17, dq (15.3, 1.5),122.16.16, dq (15.3, 1.5),122.16.38, dq (15.5, 1.5),122.76.38, dq (15.5, 1.5),122.86.35 dq (15.5, 1.5),123.51H1H1H1H1H127.42, dq (15.3, 7.1),138.67.39, dq (15.3, 7.1),139.37.18, dq (15.5, 7.0),136.17.17 dq (15.5, 7.0),136.57.35, br, 1H139.51H1H1H1H132.01, dd (7.1, 1.5),19.01.99, dd (7.1, 1.5),18.91.97, dd (7.0, 1.5),18.31.95, dd (7.0, 1.5),18.41.99 dd (7.2, 1.5),18.83H3H3H3H3H a Corresponding numbered molecular structure is found in Fig. 2. b Diastereoisomers E and Z vermelhotin could not be separately detected in methanol- d.