## 3 Experimental Section
### Extraction and Isolation
The organic layers were combined and dried with anhydrous Na\({}_{2}\)SO\({}_{4}\), filtered and evaporated under reduced pressure to give 53.8 g of the crude chloroform extract, which was applied on a column of silica gel (420 g), and eluted with mixtures of petrol-CHCl\({}_{3}\) and CHCl\({}_{3}\)-Me2 CO, 250 mL fractions were collected as follows: Frs 1-40 (petrol-CHCl\({}_{3}\), 1:1), 41-82 (petrol-CHCl\({}_{3}\), 3:7), 83-197 (petrol-CHCl\({}_{3}\), 1:9), 198-321 (CHCl\({}_{3}\)-Me\({}_{2}\)CO, 9:1), and 322-460 (CHCl\({}_{3}\)-Me\({}_{2}\)CO, 7:3). Frs 198-203 were combined (1.57 g) and applied over a column chromatography of silica gel (35 g) and eluted with mixtures of petrol-CHCl\({}_{3}\), CHCl\({}_{3}\)-Me\({}_{2}\)CO and Me\({}_{2}\)CO, 200 mL sub-fractions were collected as follows; sfrs 1-80 (petrol-CHCl\({}_{3}\), 1:1), 81-110 (petrol-CHCl\({}_{3}\), 3:7), 111-138 (petrol-CHCl\({}_{3}\), 1:9), 139-150 (CHCl\({}_{3}\)-Me2 CO, 9:1), and 151-154 (Me2 CO). Sfs 27-33 were combined (80.3 mg) and recrystallized in MeOH to give 26.7 mg of sartorenol (**1**). Sfs 34-70 were combined (498 mg) and purified by TLC (silica gel G\({}_{254}\), CHCl\({}_{3}\)-Me\({}_{2}\)CO-HCO\({}_{2}\)H, 9.5:0.5:0.1) to give an additional 18.2 mg of sartorenol (**1**). Sfs 71-90 were combined (179.0 mg) and purified by TLC (silica gel G\({}_{254}\), CHCl\({}_{3}\)-Me\({}_{2}\)CO-HCO\({}_{2}\)H, 9.5:0.5:0.1) to give chevalone B (33.6 mg) [7]. Sfs 91-112 were combined (78.4 mg) and purified by TLC (silica gel G\({}_{254}\), CHCl\({}_{3}\)-Me\({}_{2}\)CO-HCO\({}_{2}\)H, 9.5:0.5:0.1) to yield additional 2.7 mg of chevalone B. Frs 204-209 were combined (2.08 g) was recrystallized in MeOH to give aszonalenin (586.0 mg) [6],and the mother liquor was combined with frs 210-212 (1.53 g) and applied over a column chromatography of silica gel (35 g) and eluted with mixtures of petrol-CHCls, CHCls-Me2 CO and Me2 CO, wherein 200 mL sub-fractions were collected as follows: sfrs 1-25 (petrol-CHCl\({}_{3}\), 1:1), 26-120 (petrol-CHCl\({}_{3}\), 3:7). Sfs 69-105 were combined (150.2 mg) and purified by TLC (silica gel G\({}_{254}\), CHCl\({}_{3}\)-Me2 CO-HCO\({}_{2}\)H, 9:5:0.5:0.1) to give 6-hydroxymellein (5 mg) [10]. Frs 213-224 were combined (626 mg) and crystallized in MeOH to give aszonapyraone A (230 mg) [6]. Frs 262-267 were combined (573.4 mg) and purified by TLC (silica gel G\({}_{254}\), CHCl\({}_{3}\)-Me2 CO-HCO\({}_{2}\)H, 8:2:0.1) to give 20.5 mg of takakiamide (**2**) and 91.3 mg of acetylaszonalenin [6]. Frs 268-283 were combined (1.03 g) and recrystallized in MeOH to give acetylaszonalenin (115.1 mg). Frs 325-334 were combined (2.95 g) and recrystallized in MeOH to give tryptoquivaline L (0.98 g) [9]. Frs 335-342 were combined (6.06 g) and recrystallized in MeOH to give tryptoquivaline H (259.5 mg) [9]. Frs 343-348 were combined (281 mg) and crystallized in MeOH to give 3'-(4-oxoquinazolin-3-yl) spiro[1\(H\)-indole-3,5'-oxolane]-2,2'-dione (24.9 mg) [9]. Frs 356-390 were combined (1.15 g) and purified by TLC (silica gel G\({}_{254}\), CHCl\({}_{3}\)-Me2 CO-HCO\({}_{2}\)H, 7:3:0.1) to give 16.5 mg of tryptoquivaline U (**3**) and 3.9 mg tryptoquivaline F [9]. Frs 391-400 were combined (125.3 mg) and recrystallized in MeOH to give 8.6 mg of tryptoquivaline F [9].