Information Triptophenolide Triptophenolide (Hypolide), derived from Tripterygium wilfordii, is a pan-antagonist for wild-type and mutant androgen receptors with the IC50 values of 260 nM for AR-WT, 480 nM for AR-F876L, 388 nM for AR-T877A, and 437 nM for W741C+T877A. Targets AR-WT ; AR-T877A ; AR-F876L 260 nM; 388 nM; 480 nM