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This compound was prepared, starting from compound 84 (100 mg, 0.18 mmol), according to the procedure developed for compound 11. Reaction time at room temperature: 14 h to give compound 85 (78 mg, 0.12 mmol) as a very hygroscopic orange solid. Yield 69%; mp 127-129° C. (dec.); IR (KBr) ν 1123, 1285, 1342, 1466, 1654, 2000-2750, 3100-3500 cm−1; 1H NMR (200 MHz, DMSO-d6) δ 1.35 (t, 3H, J=6.9 Hz), 3.42 (m, 2H), 3.58 (m, 2H), 3.73 (m, 2H), 4.00 (m, 2H), 4.59 (m, 2H), 7.18 (dd, 1H, J=4.9, 7.8 Hz), 7.63 (m, 2H), 8.06 (t, 1H, J=8.2 Hz), 8.23 (d, 1H, J=9.2 Hz), 8.39 (m, 2H), 8.65 (d, 1H, J=7.0 Hz), 8.73 (s, 1H), 10.51 (m, 1H), 11.14 (se, 1H); ESI-MS m/z 560.0 [M+H]+.

1. customThis compound was prepared
2. customReaction time at room temperature