Acetic Acid → (1S,4R)-4-[3-(4-Allyloxy-piperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy]-1,2,3,4-tetrahydro-naphthalen-1-ylamine

Participants

Reaction Steps

A suspension of Intermediate A (108 mg, 0.661 mmol) and NaH (60% dispersion in oil, 72.1 mg, 180 mmol) in dry DMF (5 mL) at RT under Ar was stirred for 1 h (CARE: gas evolution). A solution of Intermediate 57a (166 mg, 0.601 mmol) in dry DMF (3 mL) was added and the dark brown solution stirred at 60° C. for 90 min. The solution was concentrated in vacuo, and the residue redissolved in MeOH (5 mL) and AcOH (0.171 mL, 3.00 mmol). The solution was applied to an SCX-2 cartridge (10 g) and was washed with MeOH (100 mL). The product was eluted with 2M NH3 in MeOH (75 mL); concentration in vacuo left a dark brown solid. FCC, using 2-8% [2M NH3 in MeOH] in DCM, gave the title compound as a dark brown oil (204 mg, 81%). LCMS (Method 3): Rt 2.34 min, m/z 420 [MH+].

Provenance & Evidence