Hydrochloric Acid → HCID 86717475, compound

Participants

Reaction Steps

A mixture of N-1,4-dioxaspiro[4.5]dec-8-yl-6-nitrothieno[3,2-b]pyridin-7-amine (0.45 g, 1.3 mmol) and 3.0 M hydrogen chloride in water (9 mL, 30 mmol) in acetone (20 mL) was stirred at room temperature for 20 min and then at 60° C. for 1 h. The mixture was basified with aq. 5M NaOH solution at 0° C., then extracted with EtOAc. The combined organic layers were dried over sodium sulfate, concentrated and purified on silica gel column (eluting with 0-30% of EtOAc in methylene chloride) to give the desired product (0.2 g, 51% in 2 steps). LCMS calculated for C13H14N3O3S (M+H)+: m/z=292.1. Found: 292.0.

Provenance & Evidence