Reaction Steps
A solution of (1R,2R)-3-[2-(2,4-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-6-[4-[imino(methoxy)methyl]phenyl]thieno[3,2-d]pyrimidin-4(3H)-one (0.35 mg, 0.652 mmol) (obtained in example 63) and NH2CN (140 mg, 3.26 mmol) in MeOH (15 mL) was refluxed overnight. The solvent was removed by concentration and the residue was partitioned between CHCl3 and 10% NaHCO3 solution. The organic phase was separated, dried over Na2SO4, filtered, concentrated and purified by flash chromatography to give the title compound as a white solid: mp 275°-278° C.; 1H NMR (300 MHz, MeOH-d4) δ (MeOH) 8.61 (s, 1H, N=CH--N), 8.18 (s, 1H, triazole), 8.02 (d, J=8.5, 2H, arom), 7.95 (d, J=8.5, 2H, arom), 7.81 (s, 1H, thiophene), 7.66 (s, 1H, triazole), 7.43 (dt, Jt =6.5, Jd =9, 1H, arom), 7.08 (ddd, Jd =2.5, Jd =8.5, Jd =14, 1H, arom), 6.89 (dt, Jd =2.5, Jt =8.5, 1H, arom), 6.09 (q, J=7.3, 1H, MeCH), 5.09 (d, J=14.2, 1H, CH(H)), 4.19 (d, J=14.2, 1H, CH(H)), 1.33 (d, J=7.3, 3H, CHMe); [α]D =+43.0° (c 0.25, MeOH). Analysis calculated for C26H20F2N8O2S.H2O: C 55.31; H 3.93; N 19.85; S 5.68. Found: C 55.06; H 3.74; N 18.57; S 5.28.
