The mycelium of the nine flasks was extracted exhaustively with EtOAc. The organic phase was concentrated under vacuum and resulted in a dark green solid (229 mg). This extract showed activity against the cancer cell line MCF-7 (IC50 = 6.65 μg/mL). The crude
mycelium was fractionated by NP-HPLC (YMC-Pack SIL 150 × 10 mm NP-HPLC column, isocratic flow of 100% CHCl3 over 15 min and then a gradient to 100% EtOAc until 20 min, 254 nm, 1 mL/min) to yield seven major fractions (F1−F7). Fraction F6 was reinjected in the same NP-HPLC (gradient of 100% CHCl3 to 100% EtOAc in 40 min, 254 nm, 1 mL/min) to yield compounds 1 (1 mg) and 2 (13mg)