Triethylamine → HCID 136334013, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-(4-chloro-2-oxo-1,2-dihydro-pyridin-3-yl)-6-(3-pyrrolidin-1-yl-propyl)-6,7-dihydro-1H-1,3,6-triaza-s-indacen-5-one dihydrochloride (17) (2.2 g, 4.9 mmol), (1S)-1-methyl-2-thien-2-ylethylamine hydrochloride (13b) (870 mg, 4.9 mmol) and Et3N (3.44 mL, 24.5 mmol) in EtOH (20 mL) was heated at 100° C. for 12 h. The mixture was concentrated, diluted with water (20 mL) and extracted with CHCl3 (5×20 mL) the combined organic layer was dried, concentrated to a residue that was purified on silica gel column using 10% NH4OH/methanol in CH2Cl2 to get pure 2-[4-((S)-1-methyl-2-thiophen-2-yl-ethylamino)-2-oxo-1,2-dihydro-pyridin-3-yl]-6-(3-pyrrolidin-1-yl-propyl)-6,7-dihydro-1H-1,3,6-triaza-s-indacen-5-one (18a) (1.2 g, 51%). 1H NMR (DMSO-d6) δ 1.33 (d, 3H, J=3.0 Hz), 1.55-1.85 (m, 6H), 2.3-2.45 9 m, 6H), 3.15-3.25− (m, 2H), 3.56 (t, 2H, J=6.0 Hz), 3.95-4.15 (m, 1H), 4.51 (s, 2H), 6.15 (d, 1H, J=9.0 Hz), 6.91-6.96 (m, 1H), 7.05 (t, 1H, J=3.0 Hz), 7.31-7.36 (m, 2H), 7.66 (s, 0.5H), 7.79 (d, 1H, J=3.0 Hz), 7.93 (s, 0.5H), 11.14 (d, 1H, J=9.0 Hz), 11.24 (bs, 1H). ESI-MS m/z 517.67 (M++1).

Provenance & Evidence