Rifampin(利福平), a semisynthetic derivative of rifamycin, is a DNA-dependent RNA polymerase inhibitor with broad antibacterial activity.

Procarbazine Hydrochloride(盐酸甲基苄肼) is the hydrochloride salt of a methylhydrazine derivative with antineoplastic and mutagenic activities.

Camptothecin(喜树碱) is an alkaloid isolated from the stem wood of the Chinese tree, Camptotheca acuminata. This compound selectively inhibits the nuclear enzyme DNA Ttopoisomerase I (Topo I).

10-Hydroxycamptothecin(10-羟基喜树碱) is a DNA topoisomerase I inhibitor with potent anti-tumor activity.

BAY 1895344 is a potent, highly selective and orally available ATR inhibitor.