Prop-2-ynylamine hydrochloride → 2-{[2-fluoro-6-(trifluoromethyl)benzoyl]amino}-4,4,6,6-tetramethyl-N-prop-2-ynyl-4,6-dihydrothieno[2,3-c]furan-3-carboxamide

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Reaction Steps

The title compound was prepared from the product of Example 45A and commercially available propargylamine hydrochloride using the procedure described for Example 2B. 1H NMR (DMSO-d6, 300 MHz) δ 1.44 (s. 6H), 1.48 (s, 6H), 3.06-3.08 (m, 1H), 3.90-3.93 (m, 2H), 7.65-7.81 (m, 3H), 8.55 (t, J=5.6 Hz, 1H), 11.58 (br s, 1H). MS (ESI+) m/z 469 (M+H)+. Anal. calcd. for C22H20F4N2O3S: C, 56.40; H, 4.30; N, 5.98. Found: C, 56.36; H, 4.27; N, 5.94.

Provenance & Evidence