Sodium ethoxide → 7-[(E)-2-(2-Cyclopropylmethoxy-3-methoxyphenyl)-1-ethenyl]-6-(4-methoxy-phenyl)-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

Participants

Reaction Steps

The title compound was prepared by condensation of Intermediate 9 (350 mg, 1.283 mmol) with 2-cyclopropylmethoxy-3-methoxybenzaldehyde (371 mg, 1.799 mmol) in presence of sodium ethoxide (174 mg, 2.570 mmol) in ethanol (10 ml) according to the procedure of Example 24 afforded 255 mg of the desired product as a pale yellow solid; 1H NMR (300 MHz, DMSO-d6) δ 0.25-0.27 (m, 2H), 0.49-0.51 (m, 2H), 1.03-1.05 (m, 1H), 3.67-3.70 (m, 2H), 3.77-3.81 (m, 3H), 6.89-6.91 (m, 2H), 6.98-7.02 (m, 4H), 7.23-7.26 (m, 2H), 7.47-7.49 (m, 1H), 7.96-8.10 (m, 1H), 8.10-8.15 (m, 1H); ESI-MS (m/z) 461.39 (M+H)+.

Provenance & Evidence