Methyl iodide → HCID 86651588, compound

Participants

Reaction Steps

To a 20 mL vial containing 2-chloro-5-(tetrahydro-2H-pyran-4-yl)-6a,7,9,10-tetrahydro-[1,4]oxazino[3,4-h]pteridin-6(5H)-one (0.0907 g, 0.279 mmol) was added DMSO (0.5 mL); placed in a dry ice-acetone bath and then added sodium tert-butoxide (0.030 g, 0.307 mmol) followed by DMSO (0.5 mL) and iodomethane (0.019 ml, 0.307 mmol). The dry ice-acetone bath was removed and the mixture was allowed to warm up to room temperature and stirred for 16 h. The reaction was diluted with 10 mL of water and vigorously stirred at room temperature. Collected rust/orange solids by vacuum filtration, washed with additional water and dried under high vacuum affording 2-chloro-6a-methyl-5-(tetrahydro-2H-pyran-4-yl)-6a,7,9,10-tetrahydro-[1,4]oxazino[3,4-h]pteridin-6(5H)-one (46.0 mg, 48.4% yield) as a yellow solid. 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 1.41 (d, J=0.76 Hz, 3H) 2.48-2.72 (m, 2H) 3.17-3.34 (m, 1H) 3.41-3.77 (m, 5H) 3.94-4.19 (m, 6H) 4.61 (tt, J=12.38, 4.29 Hz, 1 H) 7.98-8.14 (m, 1H). MS [M+H] found 339.3.

Provenance & Evidence