Benzyl 2-methylpiperazine-1-carboxylate → Benzyl 4-{[5-(2-chlorophenyl)-1-(2,6-dichlorophenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-7-yl]methyl}-2-methylpiperazine-1-carboxylate

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Reaction Steps

The benzyl 4-{[5-(2-chlorophenyl)-1-(2,6-dichlorophenyl)-2-oxo-1,2,3,4-tetrahydroquinazolin-7-yl]methyl}-2-methylpiperazine-1-carboxylate was prepared from 5-(2-chlorophenyl)-1-(2,6-dichlorophenyl)-2-oxo-1,2,3,4-tetrahydroquinazoline-7-carbaldehyde (INTERMEDIATE AAA1) and 1-CBz-2-methylpiperazine as described in EXAMPLE AAA1, STEP A. 1H NMR (CDCl3, 500 MHz): δ 1.08 (d, 3H, J=5.9 Hz), 2.00 (m, 1H), 2.10 (m, 1H), 2.52 (d, 1H, J=11.0 Hz), 2.70 (m, 1H), 3.06 (m, 1H), 3.26 (m, 1H), 3.46 (m, 1H), 3.86 (d, 1H, J=12.5 Hz), 4.24.5 (m, 3H), 5.05 (s, 1H), 5.14 (abq, 2H, J=12.4 Hz), 6.25 (d, 1H, J=13.3 Hz), 6.82 (s, 1H), 7.30-7.60 (m, 12H). MS (API-ES+): 651 (M+H).

Provenance & Evidence