HCID 18399670, compound → HCID 9905678, compound

Participants

Reaction Steps

Using a procedure similar to that described in Example 1, except replacing the compound 17 used therein with compound 18, the title compound was prepared in 60% yield; mp >250° C.; IR (Nujol) 1680; UV (CHCl3) 285, 360, 380 nm (log ε=3.01, 2.21, 2.47); 1H NMR δ 4.10 (3H, s), 4.14 (3H, s), 6.15 (2H, s), 7.28 (1H, s), 7.68 (1H, s), 7.83 (1H, s), 7.97 (1H, d, J=9.2), 8.16 (1H, s), 8.28 (1H, d, J=9.2), 9.85 (1H, s); 13C NMR δ 56.7, 100.3, 102.1, 102.2, 106.1, 109.2, 118.4, 127.5, 128.9, 131.2, 131.7, 140.8, 145.6, 145.7, 148.4, 149.9, 150.4, 151.7, 176.1; HRMS calcd for C20H15NO4 : 333.1001; found: 333.0999.

Provenance & Evidence