3.2.1. Compound **2**

Colorless gum (6.0 mg, 15%); UV (MeOH) λmax (log ε) 241 (4.20), 279 (3.30), 327 (3.19) nm; IR (UATR) νmax 3440, 2981, 1747, 1709, 1279, 1199, 1167, 1078, 1026, 976, 712 cm<sup>−</sup>1; For NMR data see Table 1; (+)-LRESIMS *m*/*z* (rel. int.) 408 (100) [M + H]+; (+)-HRESIMS *m*/*z* 408.1425 [M + H]<sup>+</sup> (calcd for C21H21F3NO4, 408.1417).
