Methanol → HCID 66747529, compound

Participants

Reaction Steps

Methyl 4-cyano-5-(morpholin-4-yl)-3-[(4-oxoquinazolin-3(4H)-yl)methyl]thiophene-2-carboxylate (0.139 g, 0.339 mmol) was dissolved in Tetrahydrofuran (15.0 mL), Water (2.0 mL) and Methanol (5.0 mL). 1.00 M of Sodium hydroxide in Water (1.0 mL, 1.0 mmol) was added and the homogeneous solution was stirred at room temperature for 24 hours. The solution was concentrated in rotavapor to give a white crude solid, dissolved in H2O/MeOH (1/10, ˜20 mL) and concentrated in rotavapor until a white suspension (˜2 mL volume). The suspension was filtered to collect the solid, dried in lypholizer to give a white solid product (0.132 g, yield 92.2%). LC/MS: (FA) ES+ 397; ES− 395. 1H NMR (400 MHz, d4-methanol) δ 8.37 (s, 1H), 8.22 (d, J=8.03 Hz, 1H), 7.78-7.82 (m, 1H), 7.65 (d, J=7.28 Hz, 1H), 7.51-7.55 (m, 1H), 5.99 (s, 2H), 3.78-3.81 (m, 4H), 3.47-3.50 (m, 4H).

Provenance & Evidence