Methanol → HCID 66616133, compound

Participants

Reaction Steps

To a mixture of (S)—N-(1-(4-(3,3-dimethyl-2-oxoindolin-1-yl)piperidin-1-yl)-1-oxo-4-phenylbutan-2-yl)-2-nitrobenzenesulfonamide (1.26 g, 2.13 mmol, EXAMPLE 73, Step 1), methanol (519 microL, 12.8 mmol), triphenylphosphine (1.12 g, 4.27 mmol) in tetrahydrofuran (10 mL) was added diethyl azodicarboxylate (2.2 mol/L toluene solution, 3.88 mL, 8.53 mmol) at room temperature. After 3 h, the mixture was concentrated and the residue was purified by silica gel column chromatography (hexane/ethyl acetate, gradient) to give a mixture of the title compound and triphenylphosphineoxide (3.30 g).

Provenance & Evidence