Dicyclohexylcarbodiimide → HCID 86707932, compound

Participants

Reaction Steps

4-Dimethylaminopyridine (0.19 g, 1.6 mmol) was added to a solution of 2-(4-(bis(benzyloxy)phosphoryloxy)phenyl)acetic acid (0.67 g, 1.6 mmol), 2-(2-(2-(2,6-dichlorophenyl)propan-2-yl)-1-(3,3′-difluoro-4′-(hydroxymethyl)-5′-(methylsulfonyl)biphenyl-4-yl)-1H-imidazol-4-yl)propan-2-ol (prepared in the manner described in PCT Publication No. WO 2010/138598, 0.4 g, 0.6 mmol), and N,N′-dicyclohexylcarbodiimide (0.37 g, 1.8 mmol) in CH2Cl2 (5 mL). The mixture was stirred at rt for 30 mins. After this time, the reaction mixture was filtered, and the organic solvents were removed under reduced pressure to yield the crude product. The crude product was purified by column chromatography using a mixture of CHCl3 and methanol (9:1) to afford (4′-(2-(2-(2,6-dichlorophenyl)propan-2-yl)-4-(2-hydroxypropan-2-yl)-1H-imidazol-1-yl)-3,3′-difluoro-5-(methylsulfonyl)biphenyl-4-yl)methyl 2-(4-(bis(benzyloxy)phosphoryloxy)phenyl)acetate (0.4 g, 0.4 mmol, 60% yield). 1H NMR (400 MHz, CHCl3-d) δ 1.60 (s, 6H), 2.03 (s, 6H), 2.99 (s, 3H), 3.65 (s, 2H), 5.11 (d, J=8.4, 2H), 5.67 (s, 2H), 6.62 (s, 1H), 6.88 (t, J=7.6, 1H), 6.8-7.98 (m, 22H), 7.98 (s, 1H). LCMS: (Ascentis Express C18, 5×2.1 mm, 2.7 μm; Solvent A=2% MeCN: 98% H2O: 10 mM NH4COOH; Solvent B=98% MeCN: 2% H2O: 10 mM NH4COOH; gradient 0-100% B over 1.5 min) retention time: 2.38 min; LCMS (ES-API), m/z 1005.2 (M+H).

Provenance & Evidence