反应详情

Compound 66 (0.3 g, 1.49 mmol) was converted to compound 67, using the methodology described for compound 9. Yield 0.362 g (80.7%). (TLC ether Rf 0.11), which was used as such to generate the title compound (68) using the methodology as described for compound 28. (Yield 0.17 g, 65%), mp 96-97° C. 1H-NMR (400 MHz, CDCl3): δ N1—H invisible, 8.16 (dd, J=5 Hz, 2 Hz, 1H), 7.77 (dd, J=8 Hz, 2 Hz, 1H), 6.98 (dd, J=8 Hz, 5 Hz, 1H), 6.16 (bs, 1H), 2.92-2.84 (m, 2H), 2.76-2.64 (m, 2H), 2.62-2.50 (m, 2H), 2.34 (s, 3H), 2.40-2.31 (m, 1H), 2.11-2.01 (m, 1H), 1.63-1.53 (m, 1H). (TLC MeOH/triethylamine (97/3) Rf 0.2).