Diisopropylethylamine → HCID 11361581, compound

Participants

Reaction Steps

To a solution of 6-(3-amino-prop-1-ynyl)-2-furan-2-yl-[1,2,4]triazolo[1,5-a]pyrazin-8-ylamine (0.1 mmol, see Example 26 below) in THF (1 mL) was added thiophene-3-sulfonyl chloride (23.7 mg, 0.13 mmol), a catalytic quantity of DMAP and Hünig's base (52 uL, 0.3 mmol) successively. The reaction was stirred overnight and diluted with water. The aqueous layer was extracted with methylene chloride. The combined organic extracts were washed with brine and dried over magnesium sulfate. The solvent was then evaporated. The residue was purified using preparative HPLC (C18, H2O:MeCN gradient) to afford the desired product. 1H NMR (400 MHz, DMSO-d6) δ8.16 (1H), 8.09 (1H), 7.86 (1H), 7.68 (1H), 7.54 (1H), 7.31 (1H), 7.07(1H), 6.65 (1H), 4.23 (2H), 3.53 (d, J=7 Hz, 2H). MS: m/z 401 [M+1].

Provenance & Evidence