Sodium ethoxide → 7-[(E)-2-{3-Methoxy-2-(2-methoxyethoxy)phenyl}-1-ethenyl]-6-[4-(trifluoro methoxy)-phenyl]-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

Participants

Reaction Steps

The title compound was synthesized by condensation of Intermediate 15 (350 mg, 1.072 mmol) with 3-methoxy-2-(2-methoxyethoxy)benzaldehyde (316 mg, 1.501 mmol) in presence of sodium ethoxide (146 mg, 2.147 mmol) in ethanol (15 ml) according to the procedure of Example 24 to give 286 mg of the desired product as a pale yellow solid; 1H NMR (300 MHz, DMSO-d6) δ 3.33-3.40 (m, 3H), 3.45-3.51 (m, 2H), 3.78 (s, 3H), 3.95-4.03 (m, 2H), 6.82 (d, J=15.6 Hz, 1H), 6.85-6.91 (m, 1H), 7.00 (d, J=4.2 Hz, 2H), 7.45-7.52 (m, 5H), 8.00 (d, J=4.8 Hz, 1H), 8.19 (d, J=15.6 Hz, 1H); ESI-MS (m/z) 518.19 (M+H)+.

Provenance & Evidence