*3.3. Extraction and Isolation*

The fruiting bodies of *T. camphoratus* (3.6 kg) were extracted with Et2O (4 × 10 L) for 3 days. The Et2O extract was concentrated to afford a brown syrup (370 g) and then partitioned between H2O and Et2O. The ether layer was chromatographed on silica gel and eluted with MeOH in chloroform (0–100% of MeOH, gradient) to obtain 10 fractions, (Fractions 1–10) monitored by TLC. Fraction 2 underwent silica gel column chromatography using *n*-hexane–EtOAc (10:1) to obtain compound **3** (7 mg). Fractions 3 and 4 were combined and subjected to silica gel column chromatography, eluted successively with a step gradient of *n*-hexane–EtOAc (3:1 to 1:2) to yield compounds **1** (15 mg) and **4** (7 mg). Fractions 5 and 9 were combined and chromatographed on a column of silica gel, eluted successively with a step gradient of CHCl3–MeOH as eluent to yield compound **2**.
