Triethylamine → HCID 68778514, compound

Participants

Reaction Steps

A mixture of 6-chloro-[1,3]dioxolo[4,5-g]quinazolin-8-ylamine (0.9 g, 4.02 mmol equiv) and 4-amino-piperidine-1-carboxylic acid tert-butyl ester (1.61 g, 8.05 mmol, 2.0 equiv; commercially available) in anhydrous NMP (8 mL) and triethylamine (2 mL) was heated by microwave irradiation to 170° C. for 1 h. The organic phase was concentrated under reduced pressure and the residue extracted with dichloromethane (3×50 mL) from a sat. solution of sodium bicarbonate (100 mL). The combined organic phases were dried over MgSO4 and the product purified with column chromatography on silica eluting with a gradient of toluene/ethyl acetate (4:1→2:1) providing 0.6 g (39%) of the title compound. MS (ISP): 388.4 [M+H]+.

Provenance & Evidence