Reaktion #73167

Reaktionsgleichung

Intermediate B

(R)-2-Chloro-8-cyclopentyl-7-ethyl-5-methyl-7,8-dihydropteridin-6(5H)-one

2-cyclopropyl-1H-imidazole

→

title compound

(R)-8-cyclopentyl-2-(2-cyclopropyl-1H-imidazol-1-yl)-7-ethyl-5-methyl-7,8-dihydropteridin-6(5H)-one

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigesynthesized

Vorschrift

Intermediate B was reacted via palladium coupling with 2-cyclopropyl-1H-imidazole (synthesized according to U.S. Pat. No. 6,610,723, column 91, Example 409, the disclosure of which is hereby incorporated by reference with respect to this compound) to provide the title compound. 1H NMR (CD3OD) δ: 8.05 (s, 1H), 8.04 (d, J=2.2 Hz, 1H), 7.46 (d, J=2.2 Hz, 1H), 4.43 (pent, J=3.7 Hz, 2H), 3.40 (s, 3H), 3.21 (pent, J=3.3 Hz, 1H), 2.20-2.05 (m, 1H), 2.05-1.77 (m, 7H), 1.75-1.60 (m, 2H), 1.36 (d, J=7.5 Hz, 2H), 1.30-1.10 (m, 2H), 0.87 (t, J=7.5 Hz, 3H); LCMS: 367.1 m/z (M+H)+; ret. Time: 6.70 min (Analytical Method C).

Quelle