Lumisterol 3 (>90%; 9β,10α-Cholesta-5,7-dien-3β-ol) is a predominant secosteroid metabolite found in humans, belonging to the class of vitamin D3 photoisomer derivatives. It is utilized in the synthesis of vitamin D.
ST7710AA1 is a PARP-1 inhibitor that acts by showing significant in vitro target inhibition and capability to substantially bypass the multidrug resistance mediated by Pgp.