ISC-4 was synthesized using our previously described method at Penn State College of Medicine Organic Synthesis Core (16 (link)). Purity of ISC-4 (≥97%) was quantified by analytical high performance liquid chromatography (HPLC) analysis. Cytarabine (AraC, NDC 61703-305-38), Azacitidine (Aza, NDC 63323-771-39), and Daunorubicin (DNR, NDC 0703-5233-11) were purchased from the Penn State Hershey Medical Center Pharmacy. AraC was stored at room temperature, DNR at 4°C, and Azacitidine at −80°C. Venetoclax was purchased from ChemieTek (Indianapolis). ISC-4, Venetoclax and GDC-0941 were reconstituted in DMSO and aliqouts were stored at −20°C. GDC-0941 (catalog # S1065) was purchased from Selleck Chemicals and reconstituted in DMSO. Aliquots were stored in −80°C.
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