(2,5-dioxopyrrolidin-1-yl) 2-acetylsulfanylacetate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: This compound was prepared, in an analogous manner as described in Example 1, from the compound described in intermediate 2b and 2,5-dioxopyrrolidin-1-yl 2-(acetylthio)acetate, to afford the title compound (12.3 mg, 31.8%). Data: UPLC (C) R: 1.51 min; m/z 516.3 (M+H)+. This compound was prepared, in an analogous manner

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: This compound was prepared, in an analogous manner as described in Example 1, from the compound described in intermediate 2b and 2,5-dioxopyrrolidin-1-yl 2-(acetylthio)acetate, to afford the title compound (12.3 mg, 31.8%). Data: UPLC (C) R: 1.51 min; m/z 516.3 (M+H)+. This compound was prepared, in an analogous manner