Bcl-2 Inhibitor → HCID 11076565, compound

Participants

Reaction Steps

A solution of compound 42 (2.46 g, 9.04 mmol) and sodium tunsgtate dihydrate (0.42 g, 1.26 mmol) in 95% ethanol (27.13 ml) and water (9.04 ml) was cooled to 5° C. and treated dropwise with 30% H2O2 (4.61 ml). The reaction mixture was stirred for 5 h at 5° C., then 10 ml of a saturated aqueous solution of NH4Cl was added, and extracted with CH2Cl2 (3×30 ml). The organic phase was dried over Na2SO4, filtered, and concentrated under reduced pressure to afford the crude product. Recrystallization in CH2Cl2/hexanes afforded 1.22 g (4.06 mmol, 45%) of green crystals. The mother solution was concentrated under reduced pressure, and the residue purified by flash chromatography on silica gel with hexanes/ethyl acetate: 3/1 as eluant to give an additional 0.431 g (1.47 mmol, 16%) of compounds 6a and 6b as green crystals. mp: 136-138° C.

Provenance & Evidence