[NH2:1][C:2]1[N:7]=[C:6]([NH:8][C@H:9]2[CH2:14][CH2:13][C@@H:12]([O:15][CH2:16][CH2:17][OH:18])[CH2:11][CH2:10]2)[C:5](/[CH:19]=[CH:20]/[C:21](OCC)=[O:22])=[C:4]([CH3:26])[N:3]=1.C1(S)C=CC=CC=1.[Na].CCCCC=CCCCCC.C(N(C(C)C)CC)(C)C>>[NH2:1][C:2]1[N:3]=[C:4]([CH3:26])[C:5]2[CH:19]=[CH:20][C:21](=[O:22])[N:8]([C@H:9]3[CH2:14][CH2:13][C@@H:12]([O:15][CH2:16][CH2:17][OH:18])[CH2:11][CH2:10]3)[C:6]=2[N:7]=1A solution of (E)-ethyl 3-(2-amino-4-(cis-4-(2-hydroxyethoxy)cyclohexylamino)-6-methylpyrimidin-5-yl)acrylate (615 mg, 1.69 mmol), thiophenol (173 ul, 1.69 mmol), benzenethiol, sodium salt (248 mg, 1.69 mmol), 1,5-diazabicyclo-5,4,0)undec-5-ene (1.01 mL, 6.75 mmol) and diisopropylethyl amine (1.76 mL, 10.1 mmol) in N′,N-dimethylformamide (11.2 mL) was heated to 120° C. overnight. The reaction mixture was concentrated and the residue was partitioned between methyl tert-butylether (500 mL) and saturated sodium bicarbonate (50 mL). The organic layer was separated and washed with 50% brine, dried (Na2SO4), filtered and concentrated. The combined aqueous layers were extracted with chloroform (3×175 mL). Combined extracts were washed with brine (50 mL), dried (Na2SO4), filtered and concentrated. The crude product was purified by flash chromatography eluting with chloroform/7N ammonia in methanol (0-6%) to afford the title compound (411 mg, 77%).
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