Table 2. CD Data of 3 and Related Tetramic Acid Analogues.
compound | CD λmax nm (Δε) | ||||
---|---|---|---|---|---|
3 | 225 (+4.8) | 232 (+6.5) | 260 (+2.6) | 288 (+7.5) | 330 (0) |
phomasetin10 | 225 (+3.2) | 232 (+4.4) | 260 (+1.0) | 290 (+5.2) | 330 (0) |
ent-equisetin10 | 235 (+6.0) | 250 (+4.0) | 291 (+12.5) | 330 (0) | |
equisetin10 | 227 (−5.5) | 235 (−7.5) | 260 (−3.0) | 290 (−8.9) | 330 (0) |
altersetin6 | 212 (−2.9) | 232 (−18.1) | 253 (−5.0) | 282 (−15.3) | 330 (0) |
coniosetin8 | 227 (−11.4) | 232 (−12.0) | 251 (−1.4) | 283 (−3.0) | 330 (0) |