TMS-Imidazole → HCID 10183130, compound

Participants

Reaction Steps

To a solution of N-[1′-(6-cyano-1,2,3,4-tetrahydro-2(R)-naphthalenyl)-3,4-dihydro-4(R)-hydroxyspiro[2H-1-benzopyran-2,4′-piperidin]-6-yl]amine (50 mg, 0.128 mmole) in acetonitrile under argon was added trimethylsilylimidazole (0.36 gm, 2.5 mmole) and the reaction warmed to 60 C. for 1.5 hrs. The reaction was concentrated in vacuo and purified by flash chromatography using 95/5/0.1 dichloromethane/methanol/triethylamine to give N-[1′-(6-cyano-1,2,3,4-tetrahydro-2(R)-naphthalenyl)-3,4-dihydro-4(R)-trimethylsilyloxyspiro[2H-1-benzopyran-2,4′-piperidin]-6-yl]amine as a foam (58 mg, 98%). MS m/z 462 (M+), 1H NMR (CDCL3) δ 0.09 (9 H, s), 1.4-2.1 (8 H, m), 2.4-2.9 (9 H, m), 3.2 (2 H, br, s), 4.65 (1 H, t), 6.41(1 H, dd, J=9.2 and 3.3 Hz), 6.49 (1 H, d, J=3.3 Hz), 6.52 (1 H, d, J=9.2 Hz), 7.03 (1 H, d, J=9.2 Hz), 7.22 (2 H, m).

Provenance & Evidence